diff --git a/main.js b/main.js new file mode 100644 index 0000000..73683cf --- /dev/null +++ b/main.js @@ -0,0 +1,26641 @@ +(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o= t[3]) + return true; + return false; + } + + api.getVersion = function() + { + return version; + } + + api.setVersion = function(v) + { + version = v; + } + + api.getMaxVersion = function() { + return BLOCK_MAX_VERSION; + } + + return api; +} + + +},{}],2:[function(require,module,exports){ +var pbkdf2 = require('pbkdf2'); +var crypto = require('crypto'); +var assert = require('assert'); +var Block = require('./Block'); +var Buffer = require('buffer').Buffer; + +var MAIN_NET_WORK_THRESHOLD = "ffffffc000000000"; +var SUPPORTED_ENCRYPTION_VERSION = 3; +var SALT_BYTES = 16; +var KEY_BIT_LEN = 256; +var BLOCK_BIT_LEN = 128; + +var ALGO = { + SHA1: 'sha1', + SHA256: 'sha256' +}; + +var NoPadding = { + /* + * Literally does nothing... + */ + + pad: function (dataBytes) { + return dataBytes; + }, + + unpad: function (dataBytes) { + return dataBytes; + } +}; + +var ZeroPadding = { + /* + * Fills remaining block space with 0x00 bytes + * May cause issues if data ends with any 0x00 bytes + */ + + pad: function (dataBytes, nBytesPerBlock) { + var nPaddingBytes = nBytesPerBlock - dataBytes.length % nBytesPerBlock; + var zeroBytes = new Buffer(nPaddingBytes).fill(0x00); + return Buffer.concat([ dataBytes, zeroBytes ]); + }, + + unpad: function (dataBytes) { + var unpaddedHex = dataBytes.toString('hex').replace(/(00)+$/, ''); + return new Buffer(unpaddedHex, 'hex'); + } +}; + +var Iso10126 = { + /* + * Fills remaining block space with random byte values, except for the + * final byte, which denotes the byte length of the padding + */ + + pad: function (dataBytes, nBytesPerBlock) { + var nPaddingBytes = nBytesPerBlock - dataBytes.length % nBytesPerBlock; + var paddingBytes = crypto.randomBytes(nPaddingBytes - 1); + var endByte = new Buffer([ nPaddingBytes ]); + return Buffer.concat([ dataBytes, paddingBytes, endByte ]); + }, + + unpad: function (dataBytes) { + var nPaddingBytes = dataBytes[dataBytes.length - 1]; + return dataBytes.slice(0, -nPaddingBytes); + } +}; + +var Iso97971 = { + /* + * Fills remaining block space with 0x00 bytes following a 0x80 byte, + * which serves as a mark for where the padding begins + */ + + pad: function (dataBytes, nBytesPerBlock) { + var withStartByte = Buffer.concat([ dataBytes, new Buffer([ 0x80 ]) ]); + return ZeroPadding.pad(withStartByte, nBytesPerBlock); + }, + + unpad: function (dataBytes) { + var zeroBytesRemoved = ZeroPadding.unpad(dataBytes); + return zeroBytesRemoved.slice(0, zeroBytesRemoved.length - 1); + } +}; + + +var AES = { + CBC: 'aes-256-cbc', + OFB: 'aes-256-ofb', + ECB: 'aes-256-ecb', + + /* + * Encrypt / Decrypt with aes-256 + * - dataBytes, key, and salt are expected to be buffers + * - default options are mode=CBC and padding=auto (PKCS7) + */ + + encrypt: function (dataBytes, key, salt, options) { + options = options || {}; + assert(Buffer.isBuffer(dataBytes), 'expected `dataBytes` to be a Buffer'); + assert(Buffer.isBuffer(key), 'expected `key` to be a Buffer'); + assert(Buffer.isBuffer(salt) || salt === null, 'expected `salt` to be a Buffer or null'); + + var cipher = crypto.createCipheriv(options.mode || AES.CBC, key, salt || ''); + cipher.setAutoPadding(!options.padding); + + if (options.padding) dataBytes = options.padding.pad(dataBytes, BLOCK_BIT_LEN / 8); + var encryptedBytes = Buffer.concat([ cipher.update(dataBytes), cipher.final() ]); + + return encryptedBytes; + }, + + decrypt: function (dataBytes, key, salt, options) { + options = options || {}; + assert(Buffer.isBuffer(dataBytes), 'expected `dataBytes` to be a Buffer'); + assert(Buffer.isBuffer(key), 'expected `key` to be a Buffer'); + assert(Buffer.isBuffer(salt) || salt === null, 'expected `salt` to be a Buffer or null'); + + var decipher = crypto.createDecipheriv(options.mode || AES.CBC, key, salt || ''); + decipher.setAutoPadding(!options.padding); + + var decryptedBytes = Buffer.concat([ decipher.update(dataBytes), decipher.final() ]); + if (options.padding) decryptedBytes = options.padding.unpad(decryptedBytes); + + return decryptedBytes; + } +}; + + + +module.exports = function(password) +{ + var api = {}; // wallet public methods + var private = {}; // wallet private methods + + var raiwalletdotcomRepresentative = "xrb_3pczxuorp48td8645bs3m6c3xotxd3idskrenmi65rbrga5zmkemzhwkaznh"; // self explaining + + var pk; // current account public key + var sk; // current account secret key + var pendingBalance; // current account pending balance + var balance; // current account balance + var lastBlock = ""; // current account last block + var lastPendingBlock = ""; + var pendingBlocks = []; // current account pending blocks + var chain = []; // current account chain + var representative; // current account representative + var minimumReceive = bigInt(1); // minimum amount to pocket + + var keys = []; // wallet keys, accounts, and all necessary data + var recentTxs = []; + var walletPendingBlocks = []; // wallet pending blocks + var readyBlocks = []; // wallet blocks signed and worked, ready to broadcast and add to chain + var errorBlocks = []; // blocks which could not be confirmed + + var remoteWork = []; // work pool + var autoWork = false; // generate work automatically on receive transactions (server) + + var current = -1; // key being used + var seed = ""; // wallet seed + var lastKeyFromSeed = -1; // seed index + var passPhrase = password; // wallet password + var iterations = 5000; // pbkdf2 iterations + var checksum; // wallet checksum + var ciphered = true; + var loginKey = false; // key to tell the server when the wallet was successfully decrypted + + var logger = new Logger(); + + api.debug = function() + { + console.log(readyBlocks); + } + + api.debugChain = function() + { + api.useAccount(keys[1].account); + for(let i in chain) + { + console.log(chain[i].getHash(true)); + console.log(chain[i].getPrevious()); + } + } + + api.setLogger = function(loggerObj) + { + logger = loggerObj; + } + + /** + * Sets the secret key to do all the signing stuff + * + * @param {Array} hex - The secret key byte array + * @throws An exception on invalid secret key length + */ + private.setSecretKey = function(bytes) + { + if(bytes.length != 32) + throw "Invalid Secret Key length. Should be 32 bytes."; + + sk = bytes; + pk = nacl.sign.keyPair.fromSecretKey(sk).publicKey; + } + + /** + * Signs a message with the secret key + * + * @param {Array} message - The message to be signed in a byte array + * @returns {Array} The 64 byte signature + */ + api.sign = function(message) + { + return nacl.sign.detached(message, sk); + } + + api.changePass = function(pswd, newPass) + { + if(ciphered) + throw "Wallet needs to be decrypted first."; + if(pswd == passPhrase) + { + passPhrase = newPass; + logger.log("Password changed"); + } + else + throw "Incorrect password."; + } + + api.setIterations = function(newIterationNumber) + { + newIterationNumber = parseInt(newIterationNumber); + if(newIterationNumber < 2) + throw "Minumum iteration number is 2."; + + iterations = newIterationNumber; + } + + api.setMinimumReceive = function(raw_amount) + { + raw_amount = bigInt(raw_amount); + if(raw_amount.lesser(0)) + return false; + minimumReceive = raw_amount; + return true; + } + + api.getMinimumReceive = function() + { + return minimumReceive; + } + + /** + * Sets a seed for the wallet + * + * @param {string} hexSeed - The 32 byte seed hex encoded + * @throws An exception on malformed seed + */ + api.setSeed = function(hexSeed) + { + if(!/[0-9A-F]{64}/i.test(hexSeed)) + throw "Invalid Hex Seed."; + seed = hex_uint8(hexSeed); + } + + api.getSeed = function(pswd) + { + if(pswd == passPhrase) + return uint8_hex(seed); + throw "Incorrect password."; + } + + /** + * Sets a random seed for the wallet + * + * @param {boolean} overwrite - Set to true to overwrite an existing seed + * @throws An exception on existing seed + */ + api.setRandomSeed = function(overwrite = false) + { + if(seed && !overwrite) + throw "Seed already exists. To overwrite use setSeed or set overwrite to true"; + seed = nacl.randomBytes(32); + } + + /** + * Derives a new secret key from the seed and adds it to the wallet + * + * @throws An exception if theres no seed + */ + api.newKeyFromSeed = function() + { + if(seed.length != 32) + throw "Seed should be set first."; + + var index = lastKeyFromSeed + 1; + index = hex_uint8(dec2hex(index, 4)); + + var context = blake2bInit(32); + blake2bUpdate(context, seed); + blake2bUpdate(context, index); + + var newKey = blake2bFinal(context); + + lastKeyFromSeed++; + + logger.log("New key generated"); + api.addSecretKey(uint8_hex(newKey)); + + return accountFromHexKey(uint8_hex(nacl.sign.keyPair.fromSecretKey(newKey).publicKey)); + } + + /** + * Adds a key to the wallet + * + * @param {string} hex - The secret key hex encoded + * @throws An exception on invalid secret key length + * @throws An exception on invalid hex format + */ + api.addSecretKey = function(hex) + { + if(hex.length != 64) + throw "Invalid Secret Key length. Should be 32 bytes."; + + if(!/[0-9A-F]{64}/i.test(hex)) + throw "Invalid Hex Secret Key."; + + keys.push( + { + priv: hex_uint8(hex), + pub: nacl.sign.keyPair.fromSecretKey(hex_uint8(hex)).publicKey, + account: accountFromHexKey(uint8_hex(nacl.sign.keyPair.fromSecretKey(hex_uint8(hex)).publicKey)), + balance: bigInt(0), + pendingBalance: bigInt(0), + lastBlock: "", + lastPendingBlock: "", + subscribed: false, + chain: [], + representative: "", + label : "" + } + ); + logger.log("New key added to wallet."); + } + + /** + * + * @param {boolean} hex - To return the result hex encoded + * @returns {string} The public key hex encoded + * @returns {Array} The public key in a byte array + */ + api.getPublicKey = function(hex = false) + { + if(hex) + return uint8_hex(pk); + return pk; + } + + /** + * List all the accounts in the wallet + * + * @returns {Array} + */ + api.getAccounts = function() + { + var accounts = []; + for(var i in keys) + { + accounts.push({ + account: keys[i].account, + balance: bigInt(keys[i].balance), + pendingBalance: bigInt(keys[i].pendingBalance), + label: keys[i].label + }); + } + return accounts; + } + + /** + * Switches the account being used by the wallet + * + * @param {string} accountToUse + * @throws An exception if the account is not found in the wallet + */ + api.useAccount = function(accountToUse) + { + // save current account status + if(current != -1) + { + keys[current].balance = balance; + keys[current].pendingBalance = pendingBalance; + keys[current].lastBlock = lastBlock; + keys[current].lastPendingBlock = lastPendingBlock; + keys[current].chain = chain; + keys[current].pendingBlocks = pendingBlocks; + keys[current].representative = representative; + } + + for(var i in keys) + { + if(keys[i].account == accountToUse) + { + private.setSecretKey(keys[i].priv); + balance = keys[i].balance; + pendingBalance = keys[i].pendingBalance; + current = i; + lastBlock = keys[i].lastBlock; + lastPendingBlock = keys[i].lastPendingBlock; + chain = keys[i].chain; + representative = keys[i].representative; + return; + } + } + throw "Account not found in wallet ("+accountToUse+") "+JSON.stringify(api.getAccounts()); + } + + api.importChain = function(blocks, acc) + { + api.useAccount(acc); + var last = chain.length > 0 ? chain[chain.length - 1].getHash(true) : uint8_hex(pk); + // verify chain + for(let i in blocks) + { + if(blocks[i].getPrevious() != last) + throw "Invalid chain"; + if(!api.verifyBlock(blocks[i])) + throw "There is an invalid block"; + + } + } + + api.getLastNBlocks = function(acc, n, offset = 0) + { + var temp = keys[current].account; + api.useAccount(acc); + var blocks = []; + + if(n > chain.length) + n = chain.length; + + for(let i = chain.length - 1 - offset; i > chain.length - 1 - n - offset; i--) + { + blocks.push(chain[i]); + } + api.useAccount(temp); + return blocks; + } + + api.getBlocksUpTo = function(acc, hash) + { + var temp = keys[current].account; + api.useAccount(acc); + + var blocks = []; + for(let i = chain.length - 1; i > 0; i--) + { + blocks.push(chain[i]); + if(chain[i].getHash(true) == hash) + break; + } + return blocks; + } + + api.getAccountBlockCount = function(acc) + { + var temp = keys[current].account; + api.useAccount(acc); + + var n = chain.length; + api.useAccount(temp); + return n; + } + + /** + * Generates a block signature from the block hash using the secret key + * + * @param {string} blockHash - The block hash hex encoded + * @throws An exception on invalid block hash length + * @throws An exception on invalid block hash hex encoding + * @returns {string} The 64 byte hex encoded signature + */ + api.signBlock = function(block) + { + var blockHash = block.getHash(); + + if(blockHash.length != 32) + throw "Invalid block hash length. It should be 32 bytes."; + + block.setSignature(uint8_hex(api.sign(blockHash))); + block.setAccount(keys[current].account); + + logger.log("Block " + block.getHash(true) + " signed."); + } + + /** + * Verifies a block signature given its hash, sig and XRB account + * + * @param {string} blockHash - 32 byte hex encoded block hash + * @param {string} blockSignature - 64 byte hex encoded signature + * @param {string} account - A XRB account supposed to have signed the block + * @returns {boolean} + */ + api.verifyBlockSignature = function(blockHash, blockSignature, account) + { + var pubKey = hex_uint8(keyFromAccount(account)); + + return nacl.sign.detached.verify(hex_uint8(blockHash), hex_uint8(blockSignature), pubKey); + } + + api.verifyBlock = function(block, acc = "") + { + var account = block.getAccount() ? block.getAccount() : acc; + return api.verifyBlockSignature(block.getHash(true), block.getSignature(), block.getAccount()); + } + + /** + * Returns current account balance + * + * @returns {number} balance + */ + api.getBalance = function() + { + return balance ? balance : keys[current].balance; + } + + /** + * Returns current account pending balance (not pocketed) + * + * @returns {number} pendingBalance + */ + api.getPendingBalance = function() + { + //return pendingBalance ? pendingBalance : keys[current].pendingBalance; + var am = bigInt(0); + for(let i in pendingBlocks) + { + if(pendingBlocks[i].getType() == 'open' || pendingBlocks[i].getType() == 'receive') + am = am.add(pendingBlocks[i].getAmount()); + } + return am; + } + + api.getRepresentative = function(acc = false) + { + if(!acc) + return representative; + api.useAccount(acc); + return representative; + } + + private.setRepresentative = function(repr) + { + representative = repr; + keys[current].representative = repr; + } + + /** + * Updates current account balance + * + * @param {number} newBalance - The new balance in rai units + */ + private.setBalance = function(newBalance) + { + balance = bigInt(newBalance); + keys[current].balance = balance; + } + + private.setPendingBalance = function(newBalance) + { + pendingBalance = bigInt(newBalance); + keys[current].pendingBalance = pendingBalance; + } + + api.getAccountBalance = function(acc) + { + api.useAccount(acc); + return api.getBalanceUpToBlock(0); + } + + api.getWalletPendingBalance = function() + { + var pending = bigInt(0); + for(let i in walletPendingBlocks) + { + if(walletPendingBlocks[i].getType() == 'open' || walletPendingBlocks[i].getType() == 'receive') + pending = pending.add(walletPendingBlocks[i].getAmount()); + } + return pending; + } + + api.getWalletBalance = function() + { + var bal = bigInt(0); + var temp; + for(let i in keys) + { + temp = keys[i].balance; + bal = bal.add(temp); + } + return bal; + } + + api.recalculateWalletBalances = function() + { + for(let i in keys) + { + api.useAccount(keys[i].account); + private.setBalance(api.getBalanceUpToBlock(0)); + } + } + + api.getBalanceUpToBlock = function(blockHash) + { + if(chain.length <= 0) + return 0; + + var sum = bigInt(0); + var found = blockHash === 0 ? true : false; + var blk; + + // check pending blocks first + for(let i = pendingBlocks.length - 1; i >= 0; i--) + { + blk = pendingBlocks[i]; + + if(blk.getHash(true) == blockHash) + found = true; + + if(found) + { + if(blk.getType() == 'open' || blk.getType() == 'receive') + { + sum = sum.add(blk.getAmount()); + } + else if(blk.getType() == 'send') + { + sum = sum.add(blk.getBalance()); + break; + } + } + } + + for(let i = chain.length - 1; i >= 0; i--) + { + blk = chain[i]; + + if(blk.getHash(true) == blockHash) + found = true; + + if(found) + { + if(blk.getType() == 'open' || blk.getType() == 'receive') + { + sum = sum.add(blk.getAmount()); + } + else if(blk.getType() == 'send') + { + sum = sum.add(blk.getBalance()); + break; + } + } + } + return sum; + } + + /** + * Updates an account balance + * + * @param {number} - The new balance in raw units + * @param {string} Account - The account whose balance is being updated + */ + private.setAccountBalance = function(newBalance, acc) + { + var temp = current; + api.useAccount(acc); + private.setBalance(newBalance); + api.useAccount(keys[temp].account); + } + + private.sumAccountPending = function(acc, amount) + { + var temp = current; + api.useAccount(acc); + private.setPendingBalance(api.getPendingBalance().sum(amount)); + api.useAccount(keys[temp].account); + } + + api.setLabel = function(acc, label) + { + for(let i in keys) + { + if(keys[i].account == acc) + { + keys[i].label = label; + return true; + } + } + return false; + } + + api.removePendingBlocks = function() + { + pendingBlocks = []; + } + + api.removePendingBlock = function(blockHash) + { + var found = false; + for(let i in pendingBlocks) + { + let tmp = pendingBlocks[i]; + if(tmp.getHash(true) == blockHash) + { + pendingBlocks.splice(i, 1); + found = true; + } + } + if(!found) + { + console.log("Not found"); + return; + } + for(let i in walletPendingBlocks) + { + let tmp = walletPendingBlocks[i]; + if(tmp.getHash(true) == blockHash) + { + walletPendingBlocks.splice(i, 1); + return; + } + } + } + + api.getBlockFromHash = function(blockHash, acc = 0) + { + var found = false; + var i = 0; + if(acc !== 0) + api.useAccount(acc); + else + api.useAccount(keys[0].account); + + for(let i = 0; i < keys.length; i++) + { + api.useAccount(keys[i].account); + for(let j = chain.length - 1; j >= 0; j--) + { + var blk = chain[j]; + if(blk.getHash(true) == blockHash) + return blk; + } + if(i == keys.length - 1) + break; + api.useAccount(keys[i + 1].account); + } + return false; + } + + api.addBlockToReadyBlocks = function(blk) + { + readyBlocks.push(blk); + logger.log("Block ready to be broadcasted: " +blk.getHash(true)); + } + + api.addPendingSendBlock = function(from, to, amount = 0) + { + api.useAccount(from); + amount = bigInt(amount); + + var bal = api.getBalanceUpToBlock(0); + var remaining = bal.minus(amount); + var blk = new Block(); + + blk.setSendParameters(lastPendingBlock, to, remaining); + blk.build(); + api.signBlock(blk); + blk.setAmount(amount); + blk.setAccount(from); + + lastPendingBlock = blk.getHash(true); + keys[current].lastPendingBlock = lastPendingBlock; + private.setBalance(remaining); + pendingBlocks.push(blk); + walletPendingBlocks.push(blk); + private.save(); + + // check if we have received work already + var worked = false; + for(let i in remoteWork) + { + if(remoteWork[i].hash == blk.getPrevious()) + { + if(remoteWork[i].worked) + { + worked = api.updateWorkPool(blk.getPrevious(), remoteWork[i].work); + break; + } + } + } + if(!worked) + api.workPoolAdd(blk.getPrevious(), from, true); + api.workPoolAdd(blk.getHash(true), from); + + logger.log("New send block waiting for work: " + blk.getHash(true)); + + return blk; + + } + + api.addPendingReceiveBlock = function(sourceBlockHash, acc, from, amount = 0) + { + amount = bigInt(amount); + api.useAccount(acc); + if(amount.lesser(minimumReceive)) + { + logger.log("Receive block rejected due to minimum receive amount (" + sourceBlockHash + ")"); + return false; + } + + // make sure this source has not been redeemed yet + for(let i in walletPendingBlocks) + { + if(walletPendingBlocks[i].getSource() == sourceBlockHash) + return false; + } + + for(let i in readyBlocks) + { + if(readyBlocks[i].getSource() == sourceBlockHash) + return false; + } + + for(let i in chain) + { + if(chain[i].getSource() == sourceBlockHash) + return false; + } + + var blk = new Block(); + if(lastPendingBlock.length == 64) + blk.setReceiveParameters(lastPendingBlock, sourceBlockHash); + else + blk.setOpenParameters(sourceBlockHash, acc, raiwalletdotcomRepresentative); + + blk.build(); + api.signBlock(blk); + blk.setAmount(amount); + blk.setAccount(acc); + blk.setOrigin(from); + + lastPendingBlock = blk.getHash(true); + keys[current].lastPendingBlock = lastPendingBlock; + pendingBlocks.push(blk); + walletPendingBlocks.push(blk); + private.setPendingBalance(api.getPendingBalance().add(amount)); + private.save(); + + // check if we have received work already + var worked = false; + for(let i in remoteWork) + { + if(remoteWork[i].hash == blk.getPrevious()) + { + if(remoteWork[i].worked) + { + worked = api.updateWorkPool(blk.getPrevious(), remoteWork[i].work); + break; + } + } + } + if(!worked) + api.workPoolAdd(blk.getPrevious(), acc, true); + api.workPoolAdd(blk.getHash(true), acc); + + logger.log("New receive block waiting for work: " + blk.getHash(true)); + + return blk; + } + + api.addPendingChangeBlock = function(acc, repr) + { + api.useAccount(acc); + + if(!lastPendingBlock) + throw "There needs to be at least 1 block in the chain."; + + var blk = new Block(); + blk.setChangeParameters(lastPendingBlock, repr); + blk.build(); + api.signBlock(blk); + blk.setAccount(acc); + + lastPendingBlock = blk.getHash(true); + keys[current].lastPendingBlock = lastPendingBlock; + pendingBlocks.push(blk); + walletPendingBlocks.push(blk); + private.save(); + + // check if we have received work already + var worked = false; + for(let i in remoteWork) + { + if(remoteWork[i].hash == blk.getPrevious()) + { + if(remoteWork[i].worked) + { + worked = api.updateWorkPool(blk.getPrevious(), remoteWork[i].work); + break; + } + } + } + if(!worked) + api.workPoolAdd(blk.getPrevious(), acc, true); + api.workPoolAdd(blk.getHash(true), acc); + + logger.log("New change block waiting for work: " + blk.getHash(true)); + + return blk; + } + + api.getPendingBlocks = function() + { + return pendingBlocks; + } + + api.getPendingBlockByHash = function(blockHash) + { + for(let i in walletPendingBlocks) + { + if(walletPendingBlocks[i].getHash(true) == blockHash) + return walletPendingBlocks[i]; + } + return false; + } + + api.getNextWorkBlockHash = function(acc) + { + var aux = current; + api.useAccount(acc); + + if(lastBlock.length > 0) + return lastBlock; + else + return uint8_hex(pk); + api.useAccount(keys[current].account); + } + + private.setLastBlockHash = function(blockHash) + { + lastBlock = blockHash; + keys[current].lastBlock = blockHash; + } + + api.workPoolAdd = function(hash, acc, needed = false, work = false) + { + for(let i in remoteWork) + if(remoteWork[i].hash == hash) + return; + + if(work !== false) + { + remoteWork.push({hash: hash, worked: true, work: work, requested: true, needed: needed, account: acc}); + } + else + { + remoteWork.push({hash: hash, work: "", worked: false, requested: false, needed: needed, account: acc}); + logger.log("New work target: " + hash); + } + } + + api.getWorkPool = function() + { + return remoteWork; + } + + api.setWorkRequested = function(hash) + { + for(let i in remoteWork) + { + if(remoteWork[i].hash == hash) + { + remoteWork[i].requested = true; + break; + } + } + } + + api.setWorkNeeded = function(hash) + { + for(let i in remoteWork) + { + if(remoteWork[i].hash == hash) + { + remoteWork[i].needed = true; + break; + } + } + } + + api.checkWork = function(hash, work) + { + var t = hex_uint8(MAIN_NET_WORK_THRESHOLD); + var context = blake2bInit(8, null); + blake2bUpdate(context, hex_uint8(work).reverse()); + blake2bUpdate(context, hex_uint8(hash)); + var threshold = blake2bFinal(context).reverse(); + + if(threshold[0] == t[0]) + if(threshold[1] == t[1]) + if(threshold[2] == t[2]) + if(threshold[3] >= t[3]) + return true; + return false; + } + + api.updateWorkPool = function(hash, work) + { + var found = false; + if(!api.checkWork(work, hash)) + { + logger.warn("Invalid PoW received ("+work+") ("+hash+")."); + return false; + } + + for(let i in remoteWork) + { + if(remoteWork[i].hash == hash) + { + remoteWork[i].work = work; + remoteWork[i].worked = true; + remoteWork[i].requested = true; + remoteWork[i].needed = false; + + found = true; + for(let j in walletPendingBlocks) + { + if(walletPendingBlocks[j].getPrevious() == hash) + { + logger.log("Work received for block "+walletPendingBlocks[j].getHash(true)+" previous: "+hash); + walletPendingBlocks[j].setWork(work); + var aux = walletPendingBlocks[j]; + try{ + api.confirmBlock(aux.getHash(true)); + remoteWork.splice(i, 1); + api.setWorkNeeded(aux.getHash(true)); + return true; + }catch(e){ + logger.error("Error adding block "+aux.getHash(true)+" to chain: " + e.message); + errorBlocks.push(aux) + } + break; + } + } + break; + } + } + + if(!found) + { + logger.warn("Work received for missing target: " + hash); + // add to work pool just in case, it may be a cached from the last block + api.workPoolAdd(hash, "", false, work); + } + return false; + } + + api.checkWork = function(work, blockHash) + { + var t = hex_uint8(MAIN_NET_WORK_THRESHOLD); + var context = blake2bInit(8, null); + blake2bUpdate(context, hex_uint8(work).reverse()); + blake2bUpdate(context, hex_uint8(blockHash)); + var threshold = blake2bFinal(context).reverse(); + + if(threshold[0] == t[0]) + if(threshold[1] == t[1]) + if(threshold[2] == t[2]) + if(threshold[3] >= t[3]) + return true; + return false; + } + + api.waitingRemoteWork = function() + { + for(var i in remoteWork) + { + if(!remoteWork[i].worked) + return true; + } + return false; + } + + api.getReadyBlocks = function() + { + return readyBlocks; + } + + api.getNextReadyBlock = function() + { + if(readyBlocks.length > 0) + return readyBlocks[0]; + else + return false; + } + + api.getReadyBlockByHash = function(blockHash) + { + for(let i in pendingBlocks) + { + if(readyBlocks[i].getHash(true) == blockHash) + { + return readyBlocks[i]; + } + } + return false; + } + + api.removeReadyBlock = function(blockHash) + { + for(let i in readyBlocks) + { + if(readyBlocks[i].getHash(true) == blockHash) + { + var blk = readyBlocks[i]; + readyBlocks.splice(i, 1); + return blk; + } + } + return false; + } + + /** + * Adds block to account chain + * + * @param {string} - blockHash The block hash + * @throws An exception if the block is not found in the ready blocks array + * @throws An exception if the previous block does not match the last chain block + * @throws An exception if the chain is empty and the block is not of type open + */ + api.confirmBlock = function(blockHash) + { + var blk = api.getPendingBlockByHash(blockHash); + if(blk) + { + if(blk.ready()) + { + api.useAccount(blk.getAccount()); + if(chain.length == 0) + { + // open block + if(blk.getType() != 'open') + throw "First block needs to be 'open'."; + chain.push(blk); + readyBlocks.push(blk); + api.removePendingBlock(blockHash); + private.setPendingBalance(api.getPendingBalance().minus(blk.getAmount())); + private.setBalance(api.getBalance().add(blk.getAmount())); + private.save(); + } + else + { + if(blk.getPrevious() == chain[chain.length - 1].getHash(true)) + { + if(blk.getType() == 'receive') + { + private.setPendingBalance(api.getPendingBalance().minus(blk.getAmount())); + private.setBalance(api.getBalance().add(blk.getAmount())); + } + else if(blk.getType() == 'send') + { + // check if amount sent matches amount actually being sent + var real = api.getBalanceUpToBlock(blk.getPrevious()); + if(blk.isImmutable()) + { + blk.setAmount(real.minus(blk.getBalance('dec'))); + } + else if(real.minus(blk.getBalance('dec')).neq(blk.getAmount())) + { + logger.error('Sending incorrect amount ('+blk.getAmount().toString()+') (' + (real.minus(blk.getBalance('dec')).toString() ) +')' ); + api.recalculateWalletBalances(); + throw "Incorrect send amount."; + } + } + else if(blk.getType() == 'change') + { + // TODO + private.setRepresentative(blk.getRepresentative()); + } + else + throw "Invalid block type"; + chain.push(blk); + readyBlocks.push(blk); + api.removePendingBlock(blockHash); + api.recalculateWalletBalances(); + private.save(); + } + else + { + console.log(blk.getPrevious() + " " + chain[chain.length - 1].getHash(true)); + logger.warn("Previous block does not match actual previous block"); + throw "Previous block does not match actual previous block"; + } + } + logger.log("Block added to chain: " + blk.getHash(true)); + } + else + { + logger.error("Trying to confirm block without signature or work."); + throw "Block lacks signature or work."; + } + } + else + { + logger.warn("Block trying to be confirmed has not been found."); + throw 'Block not found'; + } + } + + api.importBlock = function(blk, acc) + { + api.useAccount(acc); + blk.setAccount(acc); + if(!blk.ready()) + throw "Block should be complete."; + + lastPendingBlock = blk.getHash(true); + keys[current].lastPendingBlock = blk.getHash(true); + + // check if there is a conflicting block pending + for(let i in pendingBlocks) + { + if(pendingBlocks[i].getPrevious() == blk.getPrevious()) + { + // conflict + private.fixPreviousChange(blk.getPrevious(), blk.getHash(true), acc); + } + } + + pendingBlocks.push(blk); + walletPendingBlocks.push(blk); + private.save(); + api.confirmBlock(blk.getHash(true)); + } + + api.importForkedBlock = function(blk, acc) + { + api.useAccount(acc); + var prev = blk.getPrevious(); + + for(let i = chain.length - 1; i >= 0; i--) + { + if(chain[i].getPrevious() == prev) + { + // fork found, delete block and its successors + chain.splice(i, chain.length); + + // delete pending blocks if any + pendingBlocks = []; + + // import new block + api.importBlock(blk, acc); + return true; + } + } + return false; + } + + private.fixPreviousChange = function(oldPrevious, newPrevious, acc) + { + api.useAccount(acc); + for(let i in pendingBlocks) + { + if(pendingBlocks[i].getPrevious() == oldPrevious) + { + var oldHash = pendingBlocks[i].getHash(true); + pendingBlocks[i].changePrevious(newPrevious); + var newHash = pendingBlocks[i].getHash(true); + lastPendingBlock = newHash; + private.fixPreviousChange(oldHash, newHash, acc); + } + } + } + + api.getLoginKey = function() + { + return loginKey; + } + + api.setLoginKey = function(lk) + { + if(loginKey === false) + loginKey = lk; + // cannot be changed + } + + private.save = function() + { + // save current account status + keys[current].balance = balance; + keys[current].pendingBalance = pendingBalance; + keys[current].lastBlock = lastBlock; + keys[current].chain = chain; + keys[current].pendingBlocks = pendingBlocks; + keys[current].representative = representative; + } + + /** + * Encrypts an packs the wallet data in a hex string + * + * @returns {string} + */ + api.pack = function() + { + var pack = {}; + var tempKeys = []; + for(var i in keys) + { + var aux = {}; + aux.priv = uint8_hex(keys[i].priv); + aux.pub = uint8_hex(keys[i].pub); + aux.account = keys[i].account; + aux.balance = keys[i].balance.toString(); + aux.pendingBalance = keys[i].pendingBalance.toString(); + aux.lastBlock = keys[i].lastBlock; + aux.pendingBlocks = []; + aux.chain = []; + aux.representative = keys[i].representative; + aux.label = keys[i].label; + + for(let j in keys[i].chain) + { + aux.chain.push(keys[i].chain[j].getEntireJSON()); + } + tempKeys.push(aux); + } + pack.readyBlocks = [] + + for(let i in readyBlocks) + { + pack.readyBlocks.push(readyBlocks[i].getEntireJSON()); + } + pack.keys = tempKeys; + pack.seed = uint8_hex(seed); + pack.last = lastKeyFromSeed; + pack.recent = recentTxs; + pack.remoteWork = remoteWork; + pack.autoWork = autoWork; + pack.minimumReceive = minimumReceive.toString(); + + if(loginKey !== false) + pack.loginKey = loginKey; + + pack = JSON.stringify(pack); + pack = stringToHex(pack); + pack = new Buffer(pack, 'hex'); + + var context = blake2bInit(32); + blake2bUpdate(context, pack); + checksum = blake2bFinal(context); + + var salt = new Buffer(nacl.randomBytes(16)); + var key = pbkdf2.pbkdf2Sync(passPhrase, salt, iterations, 32, 'sha1'); + + + var options = { mode: AES.CBC, padding: Iso10126 }; + var encryptedBytes = AES.encrypt(pack, key, salt, options); + + + var payload = Buffer.concat([new Buffer(checksum), salt, encryptedBytes]); + return payload.toString('hex'); + } + + /** + * Constructs the wallet from an encrypted base64 encoded wallet + * + */ + api.load = function(data) + { + var bytes = new Buffer(data, 'hex'); + checksum = bytes.slice(0, 32); + var salt = bytes.slice(32, 48); + var payload = bytes.slice(48); + var key = pbkdf2.pbkdf2Sync(passPhrase, salt, iterations, 32, 'sha1'); + + var options = {}; + options.padding = options.padding || Iso10126; + var decryptedBytes = AES.decrypt(payload, key, salt, options); + + var context = blake2bInit(32); + blake2bUpdate(context, decryptedBytes); + var hash = uint8_hex(blake2bFinal(context)); + + if(hash != checksum.toString('hex').toUpperCase()) + throw "Wallet is corrupted or has been tampered."; + + var walletData = JSON.parse(decryptedBytes.toString('utf8')); + + seed = hex_uint8(walletData.seed); + lastKeyFromSeed = walletData.last; + recentTxs = walletData.recent; + remoteWork = []; + autoWork = walletData.autoWork; + readyBlocks = []; + minimumReceive = walletData.minimumReceive != undefined ? bigInt(walletData.minimumReceive) : bigInt("1000000000000000000000000"); + loginKey = walletData.loginKey ? walletData.loginKey : false; + + for(let i in walletData.readyBlocks) + { + var blk = new Block(); + blk.buildFromJSON(walletData.readyBlocks[i]); + readyBlocks.push(blk); + } + + for(let i in walletData.keys) + { + var aux = {}; + + aux.chain = []; + for(let j in walletData.keys[i].chain) + { + let blk = new Block(); + blk.buildFromJSON(walletData.keys[i].chain[j]); + aux.chain.push(blk); + } + + aux.priv = hex_uint8(walletData.keys[i].priv); + aux.pub = hex_uint8(walletData.keys[i].pub); + aux.account = walletData.keys[i].account; + aux.balance = bigInt(walletData.keys[i].balance ? walletData.keys[i].balance : 0); + aux.lastBlock = aux.chain.length > 0 ? aux.chain[aux.chain.length - 1].getHash(true) : ""; + aux.lastPendingBlock = aux.lastBlock; + aux.pendingBalance = bigInt(walletData.keys[i].pendingBalance ? walletData.keys[i].pendingBalance : 0); + aux.pendingBlocks = []; + aux.representative = walletData.keys[i].representative != undefined ? walletData.keys[i].representative : aux.account; + aux.label = walletData.keys[i].label != undefined ? walletData.keys[i].label : ""; + + keys.push(aux); + if(lastPendingBlock.length == 64) + api.workPoolAdd(lastPendingBlock, aux.account, true); + } + api.useAccount(keys[0].account); + api.recalculateWalletBalances(); + ciphered = false; + return walletData; + } + + api.createWallet = function(setSeed = false) + { + if(!setSeed) + seed = nacl.randomBytes(32); + else + api.setSeed(setSeed); + api.newKeyFromSeed(); + api.useAccount(keys[0].account); + loginKey = uint8_hex(nacl.randomBytes(32)); + return uint8_hex(seed); + } + + + return api; +} + + + + + +},{"./Block":1,"assert":38,"buffer":69,"crypto":78,"pbkdf2":4}],3:[function(require,module,exports){ +var RaiWallet = require('../Wallet'); +var Block = require('../Block.js'); +var wallet; +var registered = false; +var lastRetrieved = 0; +var recentEmpty = true; +var lastWorkRetrieved = 0; +var waitingForSingleWork = false; +var logger = new Logger(true); +var txsOffset = 0; +var bottomReached = false; +var loadingTxs = false; +var lastAction = 0; +var signOutInterval = 30; +var _2fa_enabled = false; +var _2fa_confirmed = false; +var _2fa_required = 0; +var _2fa_qr_url = ""; +var _2fa_key = ""; +var localPow = true; +var localPowWorking = false; +var pow_workers; +var identifier = ""; + +var RESOLVE_FORKS_BLOCK_BATCH_SIZE = 20; + +$(document).ready(function(){ + + + function toast(title, msg) + { + $.toast({ + heading: title, + text: msg, + position: 'bottom-right', + stack: false, + hideAfter: 10000, + loader: false + }); + } + + function alertError(msg) + { + $.toast({ + heading: 'Error', + text: msg, + icon: 'error', + position: 'bottom-right', + hideAfter: 10000, + loader: false + }) + } + + function alertSuccess(msg) + { + $.toast({ + heading: 'Success', + text: msg, + icon: 'success', + position: 'bottom-right', + hideAfter: 10000, + loader: false + }) + } + + function alertInfo(msg) + { + $.toast({ + text: msg, + icon: 'info', + position: 'bottom-right', + hideAfter: 10000, + loader: false + }) + } + + function alertWarning(msg) + { + $.toast({ + text: msg, + icon: 'warning', + position: 'bottom-right', + hideAfter: 10000, + loader: false + }) + } + + $(window).scroll(function(){ + if($(window).scrollTop() >= $(document).height() - $(window).height() - 60) + { + if(active == 'transactions' && !bottomReached && !loadingTxs) + { + loadingTxs = true; + var blks = wallet.getLastNBlocks(parseXRBAccount($('#acc-select').val()), 10, txsOffset); + if(blks.length > 0) + { + txsOffset += blks.length; + for(let i in blks) + { + addBlockToGui(blks[i]); + } + } + else + bottomReached = true; + loadingTxs = false; + } + } + }); + + $('#refreshdebug').click(function(){ + var logs = logger.getLogs(); + + $('#debug-box').html(''); + $('#ready-blocks').html(''); + $('#pending-blocks').html(''); + + for(let i in logs) + $('#debug-box').append(logs[i]+'
'); + for(let i in logger.getWarnings()) + $('#debug-box').append(logger.getWarnings()[i]+'
'); + for(let i in logger.getErrors()) + $('#debug-box').append(logger.getErrors()[i]+'
'); + + var pendingblks = wallet.getPendingBlocks(); + for(let i in pendingblks) + $('#pending-blocks').append(pendingblks[i].getJSONBlock()); + + var readyblks = wallet.getReadyBlocks(); + for(let i in pendingblks) + $('#ready-blocks').append(readyblks[i].getJSONBlock()); + }); + + function addAccountToGUI(accountObj) + { + var label_txt = ""; + var label_txt2 = ""; + if(accountObj.label !== undefined && accountObj.label != "") + { + label_txt = accountObj.label; + label_txt2 = '('+label_txt+') - '; + } + + var li = document.createElement('LI'); + var row = document.createElement('DIV'); + row.className += ' row'; + + var _1 = document.createElement('DIV'); + _1.className += ' col-xs-12'; + if(label_txt == "") + _1.className += ' hidden'; + + var input = document.createElement('input'); + input.setAttribute('data-account', accountObj.account); + input.type = "text"; + input.value = label_txt; + input.className += ' label-input'; + input.placeholder = 'e.g.: RaiGames dep. address'; + input.spellcheck = false; + var pencil = document.createElement('I'); + pencil.setAttribute('aria-hidden', 'true'); + pencil.className += ' fa fa-pencil cstm-pencil'; + _1.appendChild(input); + _1.appendChild(pencil); + row.appendChild(_1); + + var _2 = document.createElement('DIV'); + _2.className += 'col-xs-12'; + + var span = document.createElement('SPAN'); + var txt = document.createTextNode(accountObj.account); + span.appendChild(txt); + _2.appendChild(span); + row.appendChild(_2); + li.appendChild(row); + document.querySelector('.accounts ul').appendChild(li); + + if(label_txt == "") + { + li.addEventListener('click', function(){ + showLabelInput(_1); + }); + } + input.addEventListener('change', function(){ + updateAccountLabel(accountObj.account, input); + }); + + + $('#send-select').append(''); + $('#receive-select').append(''); + $('#change-select').append(''); + $('#acc-select').append(''); + } + + function showLabelInput(_1) + { + if($(_1).hasClass('hidden')) + { + $(_1).fadeOut(0).removeClass('hidden'); + $(_1).fadeIn(); + } + } + + function updateAccountLabel(acc, input) + { + var val = input.value; + if(val == "" && !$(input).hasClass('hidden')) + { + $(input).parent().fadeOut(1000, function(){input.addClass('hidden')}); + } + if (wallet.setLabel(acc, val)) + { + sync(); + alertInfo('Label updated'); + } + } + + function addRecentRecToGui(txObj) + { + if(recentEmpty) + $('.recent').html(''); + recentEmpty = false; + $('.recent').append(''); + } + + function removeRecentFromGui(hash) + { + var elem = $('.recent').find('#'+hash); + + refreshBalances(); + + elem.fadeOut(1500, function(){elem.remove()}); + } + + function addRecentSendToGui(txObj) + { + if(recentEmpty) + $('.recent').html(''); + recentEmpty = false; + $('.recent').append(''); + } + + function addRecentChangeToGui(txObj) + { + if(recentEmpty) + $('.recent').html(''); + recentEmpty = false; + $('.recent').append(''); + } + + function emptyRecent() + { + recentEmpty = true; + $('.recent').append('
There is nothing to show here.
'); + } + + function refreshBalances() + { + var balance = wallet.getWalletBalance(); + var pending = wallet.getWalletPendingBalance(); + + $('#pending').html((pending.over("1000000000000000000000000").toJSNumber() / 1000000).toFixed(6)); + $('#balance').html((balance.over("1000000000000000000000000").toJSNumber() / 1000000).toFixed(6)); + + var accs = wallet.getAccounts(); + for(let i in accs) + { + var acc = accs[i].account; + var bal = accs[i].balance; + var label = accs[i].label; + if(label == "") + $('select').find('.acc_select_'+acc).html(acc+' ('+(bal.over("1000000000000000000000000").toJSNumber() / 1000000).toFixed(6)+' XRB)'); + else + $('select').find('.acc_select_'+acc).html('('+label+') - '+acc+' ('+(bal.over("1000000000000000000000000").toJSNumber() / 1000000).toFixed(6)+' XRB)'); + } + } + + function sync() + { + $.post('ajax.php', 'action=sync&identifier='+identifier+'&data='+wallet.pack(), function(data){ + data = JSON.parse(data); + if(data.status == 'redirect') + { + window.location.href=data.location; + } + }); + } + + function clientPoW() + { + localPowWorking = true; + if(!localPow) + return setTimeout(clientPoW, 1000); + + var pool = wallet.getWorkPool(); + var hash = false; + if(pool.length > 0) + { + for(let i in pool) + { + if(pool[i].needed ||!pool[i].requested) + { + hash = pool[i].hash; + break; + } + } + + if(hash === false) + return setTimeout(clientPoW, 1000); + + pow_workers = pow_initiate(NaN, 'js/'); + pow_callback(pow_workers, hash, function() { + logger.log('Working locally on ' + hash); + }, function(work) { + logger.log('PoW found for ' + hash + ": " + work); + wallet.updateWorkPool(hash, work); + setTimeout(clientPoW, 1000); + }); + } + else + { + setTimeout(clientPoW, 1000); + } + } + + function recheckWork() + { + var pool = wallet.getWorkPool(); + var batch = []; + + if(localPow) + { + if(!localPowWorking) + setTimeout(clientPoW, 1); + return setTimeout(recheckWork, 5000); + } + + for(let i in pool) + { + if(!pool[i].requested || pool[i].needed) + { + batch.push(pool[i].hash); + } + } + + if(batch.length > 0) + { + if(batch.length > 1) + { + $.post('ajax.php', 'action=batchWork&batch='+JSON.stringify(batch), function(data){ + data = JSON.parse(data); + if(data.status == 'success') + { + console.log('Work requested for blocks ', batch); + for(let i in data.workRes) + { + var work = data.workRes[i].work; + var hash = data.workRes[i].hash; + if(data.work != false) + wallet.updateWorkPool(hash, work); + else + wallet.setWorkNeeded(hash); + } + } + else if(data.status == 'redirect') + { + window.location.href=data.location; + } + setTimeout(recheckWork, 5000); + }); + } + else + { + remoteWork(batch[0]); + setTimeout(recheckWork, 5000); + } + } + else + setTimeout(recheckWork, 5000); + } + + function broadcastBlock(blk) + { + var json = blk.getJSONBlock(); + var obj = JSON.parse(json); + var hash = blk.getHash(true); + var guiHash; + if(blk.getType() == 'open' || blk.getType() == 'receive') + guiHash = blk.getSource(); + else + guiHash = blk.getHash(true); + + $.post('ajax.php', 'action=broadcast&hash='+hash+"&data="+json, function(data){ + data = JSON.parse(data); + if(data.status == 'success') + { + wallet.removeReadyBlock(hash); + removeRecentFromGui(guiHash); + console.log('Block broadcasted to network: '+hash); + alertInfo(blk.getType()+" block broadcasted to network."); + sync(); + updateAccountGUI(blk.getAccount()); + } + else if(data.status == 'redirect') + { + window.location.href=data.location; + } + else + { + console.warn('Error broadcasting block: '+hash+". Error: "+data.msg); + } + }); + } + + function rebroadcastBlock(blockHash) + { + $.post('ajax.php', 'action=rebroadcast&hash='+blockHash, function(data){ + data = JSON.parse(data); + if(data.status == 'success') + { + alertInfo('Block rebroadcated'); + } + else + { + alertError(data.msg); + } + }); + } + + function updateAccountGUI(acc) + { + refreshChain(); + + // update account balance on send and receive modals + var balance = wallet.getAccountBalance(acc).over("1000000000000000000000000").toJSNumber(); + $('#sendbalance_'+acc).html(balance); + $('#receivebalance_'+acc).html(balance); + } + + function refreshChain() + { + txsOffset = 0; + bottomReached = false; + loadingTxs = false; + + var selected = parseXRBAccount($('#acc-select').val()); + var last = wallet.getLastNBlocks(selected, 20); + clearBlocksFromGui(); + + for(let i in last) + addBlockToGui(last[i]); + txsOffset = last.length; + } + + function updateReceiveQr(account = null) + { + var acc = account ? account : parseXRBAccount($('#receive-select').val()); + var am = $('#receive-amount').val(); + if(acc) + $('#qr .img').html('') + $('.qr-bot').html(''+acc+''); + $('#qr').addClass('well'); + } + + function getPendingBlocks() + { + $.post('ajax.php', 'action=getPending&last='+lastRetrieved, function(data){ + data = JSON.parse(data); + if(data.status == 'success') + { + lastRetrieved = data.last > lastRetrieved ? data.last : lastRetrieved; + for(let i in data.data) + { + var blk = data.data[i]; + var acc = blk.block.destination; + var from = blk.from; + if(wallet.addPendingReceiveBlock(blk.hash, acc, from, blk.amount)) + { + var txObj = {account: acc, amount: blk.amount, date: blk.time, hash: blk.hash} + addRecentRecToGui(txObj); + } + } + sync(); + refreshBalances(); + } + else if(data.status == 'redirect') + { + window.location.href=data.location; + } + setTimeout(getPendingBlocks, 5000); + }); + } + + function getPendingBlocks2() + { + var accs = wallet.getAccounts(); + var accounts = []; + for(let i in accs) + accounts.push(accs[i].account); + $.post('ajax.php', 'action=getPending2&accounts='+JSON.stringify(accounts), function(data){ + data = JSON.parse(data); + if(data.status == 'success') + { + for(var account in data.res) + { + for(let i in data.res[account].blocks) + { + var blk = data.res[account].blocks[i]; + if(wallet.addPendingReceiveBlock(blk.hash, account, blk.from, blk.amount)) + { + var txObj = {account: account, amount: bigInt(blk.amount), date: blk.from, hash: blk.hash} + addRecentRecToGui(txObj); + } + } + } + } + else if(data.status == 'redirect') + { + window.location.href=data.location; + } + setTimeout(getPendingBlocks2, 5000); + }) + } + + function remoteWork(hash) + { + $.post('ajax.php', 'action=remoteWork&hash='+hash, function(data) + { + data = JSON.parse(data); + if(data.status == 'success') + { + console.log('Work requested for block ' + hash); + if(data.work != false) + wallet.updateWorkPool(hash, data.work); + else + wallet.setWorkNeeded(hash); + } + else if(data.status == 'redirect') + { + window.location.href=data.location; + } + }); + } + + function getSingleWork(hash, acc) + { + if(waitingForSingleWork) + return; + waitingForSingleWork = true; + + var request = function() + { + if(waitingForSingleWork) + { + $.post('ajax.php', 'action=getSingle&hash='+hash, function(data){ + data = JSON.parse(data); + if(data.status == 'success') + { + if(data.found == true) + { + if(data.worked) + { + wallet.updateWorkPool(hash, data.work); + waitingForSingleWork = false; + } + else + setTimeout(request, 3000); + } + else + { + // not found? submit it + remoteWork(hash); + } + } + else if(data.status == 'redirect') + { + window.location.href=data.location; + } + else + setTimeout(request, 3000); + }); + } + } + request(); + } + + function cancelWait() + { + waitingForSingleWork = false; + } + + function checkReadyBlocks() + { + var blk = wallet.getNextReadyBlock(); + if(blk !== false) + broadcastBlock(blk); + setTimeout(checkReadyBlocks, 5000); + } + + function checkChains(callback) + { + var accs = wallet.getAccounts(); + var lastHashes = {}; + var forks = []; + var emptyAccounts = []; + for(let i in accs) + { + let blk = wallet.getLastNBlocks(accs[i].account, 1); + if(blk.length == 0) + { + emptyAccounts.push(accs[i].account); + continue; + } + lastHashes[accs[i].account] = blk[0].getHash(true); + } + lastHashes = JSON.stringify(lastHashes); + var emptyAccountsJSON = JSON.stringify(emptyAccounts); + $.post('ajax.php', 'action=checkChains&hashes='+lastHashes+'&emptyAccounts='+emptyAccountsJSON, function(data){ + data = JSON.parse(data); + if(data.status == 'success') + { + if(data.unsynced.length > 0) + { + for(let i in data.unsynced) + { + var acc = data.unsynced[i].account; + if(!data.unsynced[i].forked) + { + // not forked, but there are new blocks + for(let j in data.unsynced[i].blocks) + { + if(j == 0 && emptyAccounts.indexOf(acc) == -1) + continue; // first block is already confirmed, unless its missing too :P + var blk = new Block(); + blk.buildFromJSON(data.unsynced[i].blocks[j].block, blk.getMaxVersion()); + if(blk.getType() == 'receive' || blk.getType() == 'open') + blk.setOrigin(data.unsynced[i].blocks[j].fromto); + blk.setImmutable(true); + try{ + wallet.importBlock(blk, acc); + wallet.removeReadyBlock(blk.getHash(true)); // so it is not broadcasted, not necessary + }catch(e){ + logger.error(e); + } + } + } + else + { + // our chain is different than the one the network has + forks.push(acc); + } + } + + if(forks.length > 0) + { + resolveForks(forks, callback); + return; // transfer callback to resolveForks (async function) + // we dont want the wallet to be opened with an invalid chain + } + } + } + else if(data.status == 'redirect') + { + window.location.href=data.location; + } + else + logger.warn('Unable check if chain is synced with network.'); + callback(); + }); + } + + /* + * Basically posts local chain block hashes until server (node) returns a common one + */ + function resolveForks(forks, callbackFunction) + { + var evaluating = 0; + var resolve = function(acc, offset) + { + logger.log('Resolving fork for account: ' + acc); + + var blocks = wallet.getLastNBlocks(acc, RESOLVE_FORKS_BLOCK_BATCH_SIZE, offset); + var payload = []; + for(let i in blocks) + payload.push(blocks[i].getHash(true)); + + $.post('ajax.php', 'action=accountContains&blocks='+JSON.stringify(payload), function(data){ + data = JSON.parse(data); + if(data.status == 'success') + { + if(data.forked) + { + if(data.successors.length == 1) + { + // this happens when a block is at the wallet but not at the ledger + // rebroadcast the rest of the blocks + var toRebroadcast = wallet.getBlocksUpTo(acc, data.successors[0].hash); + for(let i = 0; i < toRebroadcast.length; i++) + broadcastBlock(toRebroadcast[i]); + + // jump to next account or callback function + if(evaluating >= forks.length - 1) + callbackFunction(); + else + { + evaluating++; + resolve(forks[evaluating], 0); + } + } + else + { + var blk = new Block(); + blk.buildFromJSON(data.successors[1].block, blk.getMaxVersion()); + try{ + if(wallet.importForkedBlock(blk, acc)) + { + for(let i = 2; i < data.successors.length - 1; i++) + { + var blk = new Block(); + blk.buildFromJSON(data.successors[i].block, blk.getMaxVersion()); + wallet.importBlock(blk, acc); + } + } + else + logger.warn('Trying to fix a fork not found :P'); + + // jump to next account or callback function + if(evaluating >= forks.length - 1) + callbackFunction(); + else + { + evaluating++; + resolve(forks[evaluating], 0); + } + + }catch(e){ + logger.error(e); + } + } + } + else + { + // look for the fork deeper + if(wallet.getAccountBlockCount(acc) > offset) + resolve(acc, offset + RESOLVE_FORKS_BLOCK_BATCH_SIZE); + else + { + logger.warn('Reached chain root without finding the fork searched: ' + acc); + + // jump to next account or callback function + if(evaluating >= forks.length - 1) + callbackFunction(); + else + { + evaluating++; + resolve(forks[evaluating], 0); + } + } + } + } + else if(data.status == 'redirect') + { + window.location.href=data.location; + } + else + { + // try again ... + setTimeout(function(){ + resolve(acc, offset); + }, 500) + } + }); + } + + resolve(forks[evaluating], 0); + } + + function debugAllWallet() + { + wallet.debug(); + setTimeout(debugAllWallet, 3000); + } + + function load2faSettings() + { + if(_2fa_confirmed) + { + $('#2fa_confirm').fadeIn(); + $('#button_2fa').html('Disable'); + $('#qr_2fa').html(''); + $('#2fa_key').html(''); + $('#2fa_confirm_input').val(''); + $('#button_2fa').addClass('btn-danger'); + $('#button_2fa').removeClass('btn-primary'); + } + else if(_2fa_enabled) + { + $('#2fa_confirm').fadeIn(); + $('#button_2fa').html('Confirm'); + $('#qr_2fa').html(''); + $('#2fa_key').html("Key: "+_2fa_key); + $('#2fa_confirm_input').val(''); + $('#button_2fa').addClass('btn-primary'); + $('#button_2fa').removeClass('btn-danger'); + } + else + { + // disabled + $('#2fa_confirm').fadeOut(); + $('#button_2fa').html('Enable'); + $('#qr_2fa').html(''); + $('#2fa_key').html(''); + $('#2fa_confirm_input').val(''); + $('#button_2fa').addClass('btn-primary'); + $('#button_2fa').removeClass('btn-danger'); + } + } + + function goToWallet() + { + // stop live txs script + txs.stop(); + + // load wallet template + $('.landing').html('
RAIWALLET
'); + $(".modal").modal('hide'); + + // load elements and display wallet + var accounts = wallet.getAccounts(); + var total_balance = 0; + for(let i in accounts) + { + addAccountToGUI(accounts[i]); + } + $('#minimum_receive').val(wallet.getMinimumReceive().over("1000000000000000000000000")); + + checkChains(function(){ + load2faSettings(); + refreshBalances(); + getPendingBlocks2(); + recheckWork(); + checkReadyBlocks(); + + var selected = wallet.getAccounts()[0].account; + var last = wallet.getLastNBlocks(selected, 20); + clearBlocksFromGui(); + + for(let i in last) + addBlockToGui(last[i]); + txsOffset = last.length; + + lastAction = Date.now() / 1000; + autoSignOut(); + $('button, li, input').click(function(){ + lastAction = Date.now() / 1000; + }); + + window.history.pushState("home", "RaiWallet - Home", "/home"); + document.title = 'RaiWallet - Home'; + + setTimeout(function(){ + $('.landing').fadeOut(500, function(){$('.landing').remove(); $('.wallet-wrapper').fadeIn();}); + }, 1000); + }); + + } + + $('.form-register').submit(function(){ + // check pass + if($('#psw').val() == $('#psw2').val()) + { + if($('#psw').val().length < 8) + { + alertError("You are going to store money, choose a stronger password :P"); + return false; + } + + // create wallet and send to server + wallet = new RaiWallet($('#psw').val()); + wallet.setLogger(logger); + var seed = wallet.createWallet(); + var pack = wallet.pack(); + var email = $('#email').val(); + var loginKey = wallet.getLoginKey(); + $('input').prop('disabled', true); + $.post('ajax.php', 'action=register&email='+email+'&wallet='+pack+'&loginKey='+loginKey, function(data){ + data = JSON.parse(data); + + if(data.status == 'success') + { + alertInfo('Wallet successfully registered.'); + $('#wallet_id_reg').html(data.identifier); + $('#wallet_seed_reg').html(seed); + $('.registering').fadeOut(500, function(){ + $('.registered').fadeIn(500); + }); + identifier = data.identifier; + registered = true; + } + else + { + alertError(data.msg); + } + $('input').prop('disabled', false); + }); + } + else + alertError('Passwords do not match.'); + + return false; + + }); + + $('.form-login').submit(function(e){ + e.preventDefault(); + var wid = $('#wid').val(); + var code = $('#2fa_login_code').val(); + + $('input').prop('disabled', true); + $.post('ajax.php', 'action=login&wallet_id='+wid+'&2fa='+code+"&2farequired="+_2fa_required, function(data){ + data = JSON.parse(data); + + if(data.status == 'success') + { + if(data._2fa) + { + $('#2fa_login_code').val(''); + $('#_2fa_input').fadeIn(); + alertInfo("Enter google authenticator code."); + _2fa_required = 1; + } + else + { + // decrypt wallet and check checksum + wallet = new RaiWallet($('#password').val()); + wallet.setLogger(logger); + $('#password').val(''); + + try{ + wallet.load(data.wallet); + }catch(e){ + alertError('Error decrypting wallet. Check that the password is correct.'); + $('input').prop('disabled', 0); + console.log(e); + return; + } + + identifier = data.identifier; + + if(data.alias) + { + $('#alias').val(data.alias); + $('#alias').prop('disabled', 1); + $('#change_alias').fadeOut(); + } + + if(data._2fa_enabled) + { + _2fa_enabled = true; + _2fa_qr_url = data._2fa_qr_url; + _2fa_confirmed = data._2fa_confirmed; + _2fa_key = data._2fa_key; + } + + // default to server side pow always + localPow = false; + $('#pow_checkbox').prop('checked', false); + + signOutInterval = data.sign_out; + $('#aso_time').val(signOutInterval); + + // notify server about successful decryption to allow accessing authenticated methods + var syncwallet = 0; + if(data.loginKey) + { + // login key have been generated at this login + wallet.setLoginKey(data.loginKey); + syncwallet = wallet.pack(); + } + $.post('ajax.php', 'action=imLoggedIn&loginKey='+wallet.getLoginKey()+'&identifier='+identifier+'&wallet='+syncwallet, function(data2) { + data2 = JSON.parse(data2); + if(data.status == 'success') + { + goToWallet(); + } + else + { + alertError(data.msg); + console.error(data.msg); + } + }); + } + } + else + { + alertError(data.msg); + } + $('input').prop('disabled', 0); + }); + return false; + }); + + $('.2fa_set_form').submit(function(e){ + e.preventDefault(); + $('#button_2fa').click(); + return false; + }); + + $('.gotowallet').click(goToWallet); + + $('.form-send').submit(function(event){ + event.preventDefault(); + // reset field errors + $('#to').css('border-color', '#ccc'); + $('#samount').css('border-color', '#ccc'); + var error = false; + + // from + var from = parseXRBAccount($('#send-select').val()); + if(from === false) + return alertError('Invalid origin address'); + + // check address + var to = $('#to').val(); + try{ + keyFromAccount(to); + }catch(e){ + alertError('Invalid XRB address.'); + $('#to').css('border-color', '#880000'); + error = true; + } + + var balance = wallet.getAccountBalance(from); + + var amount = parseFloat($('#samount').val()); + var amountRai = parseInt(amount * 1000000); + var amountRaw = bigInt(amountRai).multiply("1000000000000000000000000"); + if(amount <= 0) + { + alertError('Invalid amount.'); + $('#samount').css('border-color', '#880000'); + error = true; + } + + if(amountRaw.greater(balance)) + { + alertError('Amount is greater than balance in the selected account.'); + $('#samount').css('border-color', '#880000'); + error = true; + } + + if(!error) + { + try{ + var blk = wallet.addPendingSendBlock(from, to, amountRaw); + var hash = blk.getHash(true); + + refreshBalances(); + $(".modal").modal('hide'); + alertInfo("Transaction built successfully. Waiting for work ..."); + addRecentSendToGui({date: "Just now", amount: amountRaw, hash: hash}); + wallet.workPoolAdd(blk.getPrevious(), from, true); + }catch(e){ + alertError('Ooops, something happened: ' + e.message); + } + + } + return false; + }); + + $('#generate_acc').click(function(){ + var newAccount = wallet.newKeyFromSeed(); + addAccountToGUI({account: newAccount, balance: 0}); + checkChains(function(){ + refreshBalances(); + sync(); + alertSuccess('New account added to wallet.'); + wallet.useAccount(newAccount); + updateReceiveQr(newAccount); + }); + }); + + $('#change_repr').click(function(){ + var selected = parseXRBAccount($('#change-select').val()); + var repr = $('#acc-repr').val(); + + try{ + keyFromAccount(repr); + }catch(e){ + alertError("Invalid representative account."); + return; + } + + try{ + var blk = wallet.addPendingChangeBlock(selected, repr); + sync(); + var txObj = {representative: repr, hash: blk.getHash(true)}; + addRecentChangeToGui(txObj); + alertInfo("Representative changed. Waiting for work to broadcast the block."); + }catch(e){ + console.log(e); + alertError('Something happened: ' + e); + } + }); + + $('#receive-select').change(function(){ + updateReceiveQr(); + }); + + $('#receive-amount').keyup(function(){ + updateReceiveQr(); + }); + + $('#change-select').change(function(){ + var selected = parseXRBAccount($('#change-select').val()); + var repr = wallet.getRepresentative(selected); + $('#acc-repr').val(repr); + }); + + + $('#acc-select').change(function(){ + refreshChain(); + }); + + $('#refresh').click(function(){ + wallet.recalculateWalletBalances(); + }); + + + function addBlockToGui(block, prepend = false) + { + if(prepend) + var func = 'prepend'; + else + var func = 'append'; + + if(block.getType() != 'change') + { + if(block.getType() == 'send') + { + var color = 'red'; + var fromto = 'To: '; + var symbol = '-'; + var account = block.getDestination(); + } + else + { + var color = 'green'; + var fromto = 'From: '; + var symbol = '+'; + var account = block.getOrigin(); + } + var type = block.getType(); + + $('.txs ul')[func]( + '
  • '+ + '
    '+ + '
    '+ + ''+block.getType()+'
    '+ + ''+symbol+''+(block.getAmount().over("1000000000000000000000000").toJSNumber() / 1000000).toFixed(6)+''+ + '
    '+ + '
    '+ + ' '+block.getHash(true)+'
    '+ + ''+fromto+''+ + '
    '+ + '
    '+ + ''+ + ''+ + '
    '+ + ''+ + '
    '+ + '
    • ' + ); + } + else + { + var type = "change"; + $('.txs ul')[func]( + '
  • '+ + '
    '+ + '
    '+ + ''+block.getType()+''+ + '
    '+ + '
    '+ + ' '+block.getHash(true)+'
    '+ + ''+ + '
    '+ + '
    '+ + ''+ + ''+ + '
    '+ + ''+ + '
    '+ + '
    • ' + ); + } + $('[data-toggle="tooltip"]').tooltip(); + } + + + $('.txs ul').on('click', '.rebroadcast', function (){ + var hash = $(this).attr('id').replace('rebroadcast_', ''); + rebroadcastBlock(hash); + }); + + $('.form-minimum').submit(function(event){ + event.preventDefault(); + var minimum = parseInt($('#minimum_receive').val()); + if(minimum < 0) + { + alertError('Invalid minimum amount'); + return; + } + + if(wallet.setMinimumReceive(bigInt(minimum).multiply("1000000000000000000000000"))) + { + sync(); + alertInfo('Settings updated'); + } + else + { + $('#minimum_receive').val(wallet.getMinimumReceive().over("1000000000000000000000000")); + alertError('Error updating setting. Make sure you entered a valid number in rai units.'); + } + }); + + $('.form-alias').submit(function(event){ + event.preventDefault(); + var serialize = $(this).serialize(); + + $.post('ajax.php', 'action=changeAlias&'+serialize, function(data){ + data = JSON.parse(data); + if(data.status == 'success') + { + alertSuccess(data.msg); + $('#alias').prop('disabled', true); + $('#change_alias').fadeOut(); + } + else + alertError(data.msg); + }); + return false; + }); + + $('.form-autologout').submit(function(event){ + event.preventDefault(); + var serialize = $(this).serialize(); + $.post('ajax.php', 'action=autologout&' + serialize, function(data){ + data = JSON.parse(data); + if(data.status == 'success') + { + alertSuccess(data.msg); + signOutInterval = $('#aso_time').val(); + } + else + alertError(data.msg); + }); + return false; + }); + + $('.form-recovery').submit(function(event) { + event.preventDefault(); + var serialize = $(this).serialize(); + $.post('ajax.php', 'action=recover_id&'+serialize, function(data) { + data = JSON.parse(data); + if(data.status == 'success') + { + alertSuccess(data.msg); + } + else + alertError(data.msg); + }); + return false; + }); + + $('.form-import').submit(function(event) { + event.preventDefault(); + let s = $('#i_seed').val(); + let p1 = $('#import_psw1').val(); + let p2 = $('#import_psw2').val(); + + if(p1 == p2) { + if(/^[0-9A-Fa-f]{64}$/.test(s)) { + // create wallet and send to server + wallet = new RaiWallet(p1); + wallet.setLogger(logger); + var seed = wallet.createWallet(s); + var pack = wallet.pack(); + var email = $('#email-import').val(); + var loginKey = wallet.getLoginKey(); + + $('input').prop('disabled', true); + $.post('ajax.php', 'action=register&email='+email+'&wallet='+pack+'&loginKey='+loginKey, function(data){ + data = JSON.parse(data); + + if(data.status == 'success') + { + alertInfo('Wallet successfully registered.'); + $('#wallet_id_import').html(data.identifier); + $('#wallet_seed_import').html(seed); + $('.importing').fadeOut(500, function(){ + $('.imported').fadeIn(500); + }); + registered = true; + identifier = data.identifier; + } + else + { + alertError(data.msg); + } + $('input').prop('disabled', false); + }); + + } else { + alertError('Invalid walled seed. It should be a hex encoded 32 byte string.'); + } + } else { + alertError('Passwords do not match'); + } + + return false; + }); + + $('#seed_button').click(function(){ + try{ + $('#seed_backup').val(wallet.getSeed($('#seed_pass').val())); + $('#seed_pass').val(''); + setTimeout(function(){ + $('#seed_backup').val($('#seed_backup').attr('value')); + }, 30000); + alertInfo('Seed will be visible for 30 seconds.'); + }catch(e){ + alertError('Incorrect password'); + } + }); + + $('#change-pass').click(function(){ + var old = $('#change-pass-current').val(); + var new1 = $('#change-pass-new1').val(); + var new2 = $('#change-pass-new2').val(); + + if(new1 != new2) + { + alertError('Passwords do not match.'); + return; + } + + if(new1.length < 8) + { + alertWarning("Use a safer password OMG"); + return; + } + + try{ + wallet.changePass(old, new1); + sync(); + alertSuccess('Password successfully changed.'); + old = $('#change-pass-current').val(''); + new1 = $('#change-pass-new1').val(''); + new2 = $('#change-pass-new2').val(''); + }catch(e){ + alertError(e); + } + + }); + + $('#button_2fa').click(function(){ + if(!_2fa_enabled) + { + // enable + $('#button_2fa').prop('disabled', true); + $.post('ajax.php', 'action=enable2fa', function(data) { + data = JSON.parse(data); + if(data.status == 'success') + { + _2fa_enabled = true; + _2fa_confirmed = false; + _2fa_qr_url = data.qr_url; + _2fa_key = data._2fa_key; + load2faSettings(); + alertInfo('Add this key to your google authenticator app and enter the code to confirm it.'); + } + else + alertError(data.msg); + $('#button_2fa').prop('disabled', false); + }); + } + else if(!_2fa_confirmed) + { + // confirm + $('#button_2fa').prop('disabled', true); + var code = $('#2fa_confirm_input').val(); + $.post('ajax.php', 'action=confirm2fa&code='+code, function(data){ + data = JSON.parse(data); + if(data.status == 'success') + { + _2fa_enabled = true; + _2fa_confirmed = true; + load2faSettings(); + alertSuccess('2fa successfully enabled.'); + } + else + { + alertError(data.msg); + } + $('#button_2fa').prop('disabled', false); + }); + } + else + { + // disable + var code = $('#2fa_confirm_input').val(); + $('#button_2fa').prop('disabled', true); + $.post('ajax.php', 'action=disable2fa&code='+code, function(data) { + data = JSON.parse(data); + if(data.status == 'success') + { + alertSuccess(data.msg); + _2fa_enabled = false; + _2fa_confirmed = false; + load2faSettings(); + } + else + alertError(data.msg); + $('#button_2fa').prop('disabled', false); + }); + } + }); + + $('#pow_checkbox').change(function(){ + if($(this).is(":checked")) + { + localPow = true; + localPowWorking = true; + clientPoW(); + alertInfo('Preferences updated. PoW will be generated at client side now.'); + } + else + { + localPow = false; + pow_terminate(pow_workers); + localPowWorking = false; + alertInfo('Preferences updated. PoW will be generated at server side now.'); + } + }); + + $('#change-iterations').click(function(){ + var newIterations = parseInt($('#iteration_number').val()); + var oldIterations = wallet.getIterations(); + if(newIterations < 500) + { + alertWarning("A greater iteration number is recommended."); + } + + try{ + wallet.setIterations(newIterations); + $('#iteration_number').val(''); + alertInfo("PBKDF2 iterations updated."); + }catch(e){ + alertError(e); + } + }); + + $('#download_wallet').click(function(){ + var data = wallet.pack(); + var link = document.createElement('a'); + link.download = 'RaiWalletBackUp.dat'; + var blob = new Blob([data], {type: 'text/plain'}); + link.href = window.URL.createObjectURL(blob); + link.click(); + }); + + function clearBlocksFromGui() + { + $('.txs ul').html(''); + } + + function autoSignOut() + { + if(Date.now() / 1000 - lastAction > 60 * signOutInterval) + window.location.href = '/out'; + setTimeout(autoSignOut, 30000); + } + +}); +},{"../Block.js":1,"../Wallet":2}],4:[function(require,module,exports){ + +exports.pbkdf2 = require('./lib/async') + +exports.pbkdf2Sync = require('./lib/sync') + +},{"./lib/async":5,"./lib/sync":8}],5:[function(require,module,exports){ +(function (process,global){ +var checkParameters = require('./precondition') +var defaultEncoding = require('./default-encoding') +var sync = require('./sync') +var Buffer = require('safe-buffer').Buffer + +var ZERO_BUF +var subtle = global.crypto && global.crypto.subtle +var toBrowser = { + 'sha': 'SHA-1', + 'sha-1': 'SHA-1', + 'sha1': 'SHA-1', + 'sha256': 'SHA-256', + 'sha-256': 'SHA-256', + 'sha384': 'SHA-384', + 'sha-384': 'SHA-384', + 'sha-512': 'SHA-512', + 'sha512': 'SHA-512' +} +var checks = [] +function checkNative (algo) { + if (global.process && !global.process.browser) { + return Promise.resolve(false) + } + if (!subtle || !subtle.importKey || !subtle.deriveBits) { + return Promise.resolve(false) + } + if (checks[algo] !== undefined) { + return checks[algo] + } + ZERO_BUF = ZERO_BUF || Buffer.alloc(8) + var prom = browserPbkdf2(ZERO_BUF, ZERO_BUF, 10, 128, algo) + .then(function () { + return true + }).catch(function () { + return false + }) + checks[algo] = prom + return prom +} +function browserPbkdf2 (password, salt, iterations, length, algo) { + return subtle.importKey( + 'raw', password, {name: 'PBKDF2'}, false, ['deriveBits'] + ).then(function (key) { + return subtle.deriveBits({ + name: 'PBKDF2', + salt: salt, + iterations: iterations, + hash: { + name: algo + } + }, key, length << 3) + }).then(function (res) { + return Buffer.from(res) + }) +} +function resolvePromise (promise, callback) { + promise.then(function (out) { + process.nextTick(function () { + callback(null, out) + }) + }, function (e) { + process.nextTick(function () { + callback(e) + }) + }) +} +module.exports = function (password, salt, iterations, keylen, digest, callback) { + if (!Buffer.isBuffer(password)) password = Buffer.from(password, defaultEncoding) + if (!Buffer.isBuffer(salt)) salt = Buffer.from(salt, defaultEncoding) + + checkParameters(iterations, keylen) + if (typeof digest === 'function') { + callback = digest + digest = undefined + } + if (typeof callback !== 'function') throw new Error('No callback provided to pbkdf2') + + digest = digest || 'sha1' + var algo = toBrowser[digest.toLowerCase()] + if (!algo || typeof global.Promise !== 'function') { + return process.nextTick(function () { + var out + try { + out = sync(password, salt, iterations, keylen, digest) + } catch (e) { + return callback(e) + } + callback(null, out) + }) + } + resolvePromise(checkNative(algo).then(function (resp) { + if (resp) { + return browserPbkdf2(password, salt, iterations, keylen, algo) + } else { + return sync(password, salt, iterations, keylen, digest) + } + }), callback) +} + +}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) +},{"./default-encoding":6,"./precondition":7,"./sync":8,"_process":140,"safe-buffer":14}],6:[function(require,module,exports){ +(function (process){ +var defaultEncoding +/* istanbul ignore next */ +if (process.browser) { + defaultEncoding = 'utf-8' +} else { + var pVersionMajor = parseInt(process.version.split('.')[0].slice(1), 10) + + defaultEncoding = pVersionMajor >= 6 ? 'utf-8' : 'binary' +} +module.exports = defaultEncoding + +}).call(this,require('_process')) +},{"_process":140}],7:[function(require,module,exports){ +var MAX_ALLOC = Math.pow(2, 30) - 1 // default in iojs +module.exports = function (iterations, keylen) { + if (typeof iterations !== 'number') { + throw new TypeError('Iterations not a number') + } + + if (iterations < 0) { + throw new TypeError('Bad iterations') + } + + if (typeof keylen !== 'number') { + throw new TypeError('Key length not a number') + } + + if (keylen < 0 || keylen > MAX_ALLOC || keylen !== keylen) { /* eslint no-self-compare: 0 */ + throw new TypeError('Bad key length') + } +} + +},{}],8:[function(require,module,exports){ +var md5 = require('create-hash/md5') +var rmd160 = require('ripemd160') +var sha = require('sha.js') + +var checkParameters = require('./precondition') +var defaultEncoding = require('./default-encoding') +var Buffer = require('safe-buffer').Buffer +var ZEROS = Buffer.alloc(128) +var sizes = { + md5: 16, + sha1: 20, + sha224: 28, + sha256: 32, + sha384: 48, + sha512: 64, + rmd160: 20, + ripemd160: 20 +} +function Hmac (alg, key, saltLen) { + var hash = getDigest(alg) + var blocksize = (alg === 'sha512' || alg === 'sha384') ? 128 : 64 + + if (key.length > blocksize) { + key = hash(key) + } else if (key.length < blocksize) { + key = Buffer.concat([key, ZEROS], blocksize) + } + + var ipad = Buffer.allocUnsafe(blocksize + sizes[alg]) + var opad = Buffer.allocUnsafe(blocksize + sizes[alg]) + for (var i = 0; i < blocksize; i++) { + ipad[i] = key[i] ^ 0x36 + opad[i] = key[i] ^ 0x5C + } + + var ipad1 = Buffer.allocUnsafe(blocksize + saltLen + 4) + ipad.copy(ipad1, 0, 0, blocksize) + this.ipad1 = ipad1 + this.ipad2 = ipad + this.opad = opad + this.alg = alg + this.blocksize = blocksize + this.hash = hash + this.size = sizes[alg] +} + +Hmac.prototype.run = function (data, ipad) { + data.copy(ipad, this.blocksize) + var h = this.hash(ipad) + h.copy(this.opad, this.blocksize) + return this.hash(this.opad) +} + +function getDigest (alg) { + if (alg === 'rmd160' || alg === 'ripemd160') return rmd160 + if (alg === 'md5') return md5 + return shaFunc + + function shaFunc (data) { + return sha(alg).update(data).digest() + } +} + +module.exports = function (password, salt, iterations, keylen, digest) { + if (!Buffer.isBuffer(password)) password = Buffer.from(password, defaultEncoding) + if (!Buffer.isBuffer(salt)) salt = Buffer.from(salt, defaultEncoding) + + checkParameters(iterations, keylen) + + digest = digest || 'sha1' + + var hmac = new Hmac(digest, password, salt.length) + + var DK = Buffer.allocUnsafe(keylen) + var block1 = Buffer.allocUnsafe(salt.length + 4) + salt.copy(block1, 0, 0, salt.length) + + var U, j, destPos, len + + var hLen = hmac.size + var T = Buffer.allocUnsafe(hLen) + var l = Math.ceil(keylen / hLen) + var r = keylen - (l - 1) * hLen + + for (var i = 1; i <= l; i++) { + block1.writeUInt32BE(i, salt.length) + U = hmac.run(block1, hmac.ipad1) + + U.copy(T, 0, 0, hLen) + + for (j = 1; j < iterations; j++) { + U = hmac.run(U, hmac.ipad2) + for (var k = 0; k < hLen; k++) T[k] ^= U[k] + } + + destPos = (i - 1) * hLen + len = (i === l ? r : hLen) + T.copy(DK, destPos, 0, len) + } + + return DK +} + +},{"./default-encoding":6,"./precondition":7,"create-hash/md5":10,"ripemd160":11,"safe-buffer":14,"sha.js":16}],9:[function(require,module,exports){ +(function (Buffer){ +'use strict' +var intSize = 4 +var zeroBuffer = new Buffer(intSize) +zeroBuffer.fill(0) + +var charSize = 8 +var hashSize = 16 + +function toArray (buf) { + if ((buf.length % intSize) !== 0) { + var len = buf.length + (intSize - (buf.length % intSize)) + buf = Buffer.concat([buf, zeroBuffer], len) + } + + var arr = new Array(buf.length >>> 2) + for (var i = 0, j = 0; i < buf.length; i += intSize, j++) { + arr[j] = buf.readInt32LE(i) + } + + return arr +} + +module.exports = function hash (buf, fn) { + var arr = fn(toArray(buf), buf.length * charSize) + buf = new Buffer(hashSize) + for (var i = 0; i < arr.length; i++) { + buf.writeInt32LE(arr[i], i << 2, true) + } + return buf +} + +}).call(this,require("buffer").Buffer) +},{"buffer":69}],10:[function(require,module,exports){ +'use strict' +/* + * A JavaScript implementation of the RSA Data Security, Inc. MD5 Message + * Digest Algorithm, as defined in RFC 1321. + * Version 2.1 Copyright (C) Paul Johnston 1999 - 2002. + * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet + * Distributed under the BSD License + * See http://pajhome.org.uk/crypt/md5 for more info. + */ + +var makeHash = require('./make-hash') + +/* + * Calculate the MD5 of an array of little-endian words, and a bit length + */ +function core_md5 (x, len) { + /* append padding */ + x[len >> 5] |= 0x80 << ((len) % 32) + x[(((len + 64) >>> 9) << 4) + 14] = len + + var a = 1732584193 + var b = -271733879 + var c = -1732584194 + var d = 271733878 + + for (var i = 0; i < x.length; i += 16) { + var olda = a + var oldb = b + var oldc = c + var oldd = d + + a = md5_ff(a, b, c, d, x[i + 0], 7, -680876936) + d = md5_ff(d, a, b, c, x[i + 1], 12, -389564586) + c = md5_ff(c, d, a, b, x[i + 2], 17, 606105819) + b = md5_ff(b, c, d, a, x[i + 3], 22, -1044525330) + a = md5_ff(a, b, c, d, x[i + 4], 7, -176418897) + d = md5_ff(d, a, b, c, x[i + 5], 12, 1200080426) + c = md5_ff(c, d, a, b, x[i + 6], 17, -1473231341) + b = md5_ff(b, c, d, a, x[i + 7], 22, -45705983) + a = md5_ff(a, b, c, d, x[i + 8], 7, 1770035416) + d = md5_ff(d, a, b, c, x[i + 9], 12, -1958414417) + c = md5_ff(c, d, a, b, x[i + 10], 17, -42063) + b = md5_ff(b, c, d, a, x[i + 11], 22, -1990404162) + a = md5_ff(a, b, c, d, x[i + 12], 7, 1804603682) + d = md5_ff(d, a, b, c, x[i + 13], 12, -40341101) + c = md5_ff(c, d, a, b, x[i + 14], 17, -1502002290) + b = md5_ff(b, c, d, a, x[i + 15], 22, 1236535329) + + a = md5_gg(a, b, c, d, x[i + 1], 5, -165796510) + d = md5_gg(d, a, b, c, x[i + 6], 9, -1069501632) + c = md5_gg(c, d, a, b, x[i + 11], 14, 643717713) + b = md5_gg(b, c, d, a, x[i + 0], 20, -373897302) + a = md5_gg(a, b, c, d, x[i + 5], 5, -701558691) + d = md5_gg(d, a, b, c, x[i + 10], 9, 38016083) + c = md5_gg(c, d, a, b, x[i + 15], 14, -660478335) + b = md5_gg(b, c, d, a, x[i + 4], 20, -405537848) + a = md5_gg(a, b, c, d, x[i + 9], 5, 568446438) + d = md5_gg(d, a, b, c, x[i + 14], 9, -1019803690) + c = md5_gg(c, d, a, b, x[i + 3], 14, -187363961) + b = md5_gg(b, c, d, a, x[i + 8], 20, 1163531501) + a = md5_gg(a, b, c, d, x[i + 13], 5, -1444681467) + d = md5_gg(d, a, b, c, x[i + 2], 9, -51403784) + c = md5_gg(c, d, a, b, x[i + 7], 14, 1735328473) + b = md5_gg(b, c, d, a, x[i + 12], 20, -1926607734) + + a = md5_hh(a, b, c, d, x[i + 5], 4, -378558) + d = md5_hh(d, a, b, c, x[i + 8], 11, -2022574463) + c = md5_hh(c, d, a, b, x[i + 11], 16, 1839030562) + b = md5_hh(b, c, d, a, x[i + 14], 23, -35309556) + a = md5_hh(a, b, c, d, x[i + 1], 4, -1530992060) + d = md5_hh(d, a, b, c, x[i + 4], 11, 1272893353) + c = md5_hh(c, d, a, b, x[i + 7], 16, -155497632) + b = md5_hh(b, c, d, a, x[i + 10], 23, -1094730640) + a = md5_hh(a, b, c, d, x[i + 13], 4, 681279174) + d = md5_hh(d, a, b, c, x[i + 0], 11, -358537222) + c = md5_hh(c, d, a, b, x[i + 3], 16, -722521979) + b = md5_hh(b, c, d, a, x[i + 6], 23, 76029189) + a = md5_hh(a, b, c, d, x[i + 9], 4, -640364487) + d = md5_hh(d, a, b, c, x[i + 12], 11, -421815835) + c = md5_hh(c, d, a, b, x[i + 15], 16, 530742520) + b = md5_hh(b, c, d, a, x[i + 2], 23, -995338651) + + a = md5_ii(a, b, c, d, x[i + 0], 6, -198630844) + d = md5_ii(d, a, b, c, x[i + 7], 10, 1126891415) + c = md5_ii(c, d, a, b, x[i + 14], 15, -1416354905) + b = md5_ii(b, c, d, a, x[i + 5], 21, -57434055) + a = md5_ii(a, b, c, d, x[i + 12], 6, 1700485571) + d = md5_ii(d, a, b, c, x[i + 3], 10, -1894986606) + c = md5_ii(c, d, a, b, x[i + 10], 15, -1051523) + b = md5_ii(b, c, d, a, x[i + 1], 21, -2054922799) + a = md5_ii(a, b, c, d, x[i + 8], 6, 1873313359) + d = md5_ii(d, a, b, c, x[i + 15], 10, -30611744) + c = md5_ii(c, d, a, b, x[i + 6], 15, -1560198380) + b = md5_ii(b, c, d, a, x[i + 13], 21, 1309151649) + a = md5_ii(a, b, c, d, x[i + 4], 6, -145523070) + d = md5_ii(d, a, b, c, x[i + 11], 10, -1120210379) + c = md5_ii(c, d, a, b, x[i + 2], 15, 718787259) + b = md5_ii(b, c, d, a, x[i + 9], 21, -343485551) + + a = safe_add(a, olda) + b = safe_add(b, oldb) + c = safe_add(c, oldc) + d = safe_add(d, oldd) + } + + return [a, b, c, d] +} + +/* + * These functions implement the four basic operations the algorithm uses. + */ +function md5_cmn (q, a, b, x, s, t) { + return safe_add(bit_rol(safe_add(safe_add(a, q), safe_add(x, t)), s), b) +} + +function md5_ff (a, b, c, d, x, s, t) { + return md5_cmn((b & c) | ((~b) & d), a, b, x, s, t) +} + +function md5_gg (a, b, c, d, x, s, t) { + return md5_cmn((b & d) | (c & (~d)), a, b, x, s, t) +} + +function md5_hh (a, b, c, d, x, s, t) { + return md5_cmn(b ^ c ^ d, a, b, x, s, t) +} + +function md5_ii (a, b, c, d, x, s, t) { + return md5_cmn(c ^ (b | (~d)), a, b, x, s, t) +} + +/* + * Add integers, wrapping at 2^32. This uses 16-bit operations internally + * to work around bugs in some JS interpreters. + */ +function safe_add (x, y) { + var lsw = (x & 0xFFFF) + (y & 0xFFFF) + var msw = (x >> 16) + (y >> 16) + (lsw >> 16) + return (msw << 16) | (lsw & 0xFFFF) +} + +/* + * Bitwise rotate a 32-bit number to the left. + */ +function bit_rol (num, cnt) { + return (num << cnt) | (num >>> (32 - cnt)) +} + +module.exports = function md5 (buf) { + return makeHash(buf, core_md5) +} + +},{"./make-hash":9}],11:[function(require,module,exports){ +(function (Buffer){ +'use strict' +var inherits = require('inherits') +var HashBase = require('hash-base') + +function RIPEMD160 () { + HashBase.call(this, 64) + + // state + this._a = 0x67452301 + this._b = 0xefcdab89 + this._c = 0x98badcfe + this._d = 0x10325476 + this._e = 0xc3d2e1f0 +} + +inherits(RIPEMD160, HashBase) + +RIPEMD160.prototype._update = function () { + var m = new Array(16) + for (var i = 0; i < 16; ++i) m[i] = this._block.readInt32LE(i * 4) + + var al = this._a + var bl = this._b + var cl = this._c + var dl = this._d + var el = this._e + + // Mj = 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 + // K = 0x00000000 + // Sj = 11, 14, 15, 12, 5, 8, 7, 9, 11, 13, 14, 15, 6, 7, 9, 8 + al = fn1(al, bl, cl, dl, el, m[0], 0x00000000, 11); cl = rotl(cl, 10) + el = fn1(el, al, bl, cl, dl, m[1], 0x00000000, 14); bl = rotl(bl, 10) + dl = fn1(dl, el, al, bl, cl, m[2], 0x00000000, 15); al = rotl(al, 10) + cl = fn1(cl, dl, el, al, bl, m[3], 0x00000000, 12); el = rotl(el, 10) + bl = fn1(bl, cl, dl, el, al, m[4], 0x00000000, 5); dl = rotl(dl, 10) + al = fn1(al, bl, cl, dl, el, m[5], 0x00000000, 8); cl = rotl(cl, 10) + el = fn1(el, al, bl, cl, dl, m[6], 0x00000000, 7); bl = rotl(bl, 10) + dl = fn1(dl, el, al, bl, cl, m[7], 0x00000000, 9); al = rotl(al, 10) + cl = fn1(cl, dl, el, al, bl, m[8], 0x00000000, 11); el = rotl(el, 10) + bl = fn1(bl, cl, dl, el, al, m[9], 0x00000000, 13); dl = rotl(dl, 10) + al = fn1(al, bl, cl, dl, el, m[10], 0x00000000, 14); cl = rotl(cl, 10) + el = fn1(el, al, bl, cl, dl, m[11], 0x00000000, 15); bl = rotl(bl, 10) + dl = fn1(dl, el, al, bl, cl, m[12], 0x00000000, 6); al = rotl(al, 10) + cl = fn1(cl, dl, el, al, bl, m[13], 0x00000000, 7); el = rotl(el, 10) + bl = fn1(bl, cl, dl, el, al, m[14], 0x00000000, 9); dl = rotl(dl, 10) + al = fn1(al, bl, cl, dl, el, m[15], 0x00000000, 8); cl = rotl(cl, 10) + + // Mj = 7, 4, 13, 1, 10, 6, 15, 3, 12, 0, 9, 5, 2, 14, 11, 8 + // K = 0x5a827999 + // Sj = 7, 6, 8, 13, 11, 9, 7, 15, 7, 12, 15, 9, 11, 7, 13, 12 + el = fn2(el, al, bl, cl, dl, m[7], 0x5a827999, 7); bl = rotl(bl, 10) + dl = fn2(dl, el, al, bl, cl, m[4], 0x5a827999, 6); al = rotl(al, 10) + cl = fn2(cl, dl, el, al, bl, m[13], 0x5a827999, 8); el = rotl(el, 10) + bl = fn2(bl, cl, dl, el, al, m[1], 0x5a827999, 13); dl = rotl(dl, 10) + al = fn2(al, bl, cl, dl, el, m[10], 0x5a827999, 11); cl = rotl(cl, 10) + el = fn2(el, al, bl, cl, dl, m[6], 0x5a827999, 9); bl = rotl(bl, 10) + dl = fn2(dl, el, al, bl, cl, m[15], 0x5a827999, 7); al = rotl(al, 10) + cl = fn2(cl, dl, el, al, bl, m[3], 0x5a827999, 15); el = rotl(el, 10) + bl = fn2(bl, cl, dl, el, al, m[12], 0x5a827999, 7); dl = rotl(dl, 10) + al = fn2(al, bl, cl, dl, el, m[0], 0x5a827999, 12); cl = rotl(cl, 10) + el = fn2(el, al, bl, cl, dl, m[9], 0x5a827999, 15); bl = rotl(bl, 10) + dl = fn2(dl, el, al, bl, cl, m[5], 0x5a827999, 9); al = rotl(al, 10) + cl = fn2(cl, dl, el, al, bl, m[2], 0x5a827999, 11); el = rotl(el, 10) + bl = fn2(bl, cl, dl, el, al, m[14], 0x5a827999, 7); dl = rotl(dl, 10) + al = fn2(al, bl, cl, dl, el, m[11], 0x5a827999, 13); cl = rotl(cl, 10) + el = fn2(el, al, bl, cl, dl, m[8], 0x5a827999, 12); bl = rotl(bl, 10) + + // Mj = 3, 10, 14, 4, 9, 15, 8, 1, 2, 7, 0, 6, 13, 11, 5, 12 + // K = 0x6ed9eba1 + // Sj = 11, 13, 6, 7, 14, 9, 13, 15, 14, 8, 13, 6, 5, 12, 7, 5 + dl = fn3(dl, el, al, bl, cl, m[3], 0x6ed9eba1, 11); al = rotl(al, 10) + cl = fn3(cl, dl, el, al, bl, m[10], 0x6ed9eba1, 13); el = rotl(el, 10) + bl = fn3(bl, cl, dl, el, al, m[14], 0x6ed9eba1, 6); dl = rotl(dl, 10) + al = fn3(al, bl, cl, dl, el, m[4], 0x6ed9eba1, 7); cl = rotl(cl, 10) + el = fn3(el, al, bl, cl, dl, m[9], 0x6ed9eba1, 14); bl = rotl(bl, 10) + dl = fn3(dl, el, al, bl, cl, m[15], 0x6ed9eba1, 9); al = rotl(al, 10) + cl = fn3(cl, dl, el, al, bl, m[8], 0x6ed9eba1, 13); el = rotl(el, 10) + bl = fn3(bl, cl, dl, el, al, m[1], 0x6ed9eba1, 15); dl = rotl(dl, 10) + al = fn3(al, bl, cl, dl, el, m[2], 0x6ed9eba1, 14); cl = rotl(cl, 10) + el = fn3(el, al, bl, cl, dl, m[7], 0x6ed9eba1, 8); bl = rotl(bl, 10) + dl = fn3(dl, el, al, bl, cl, m[0], 0x6ed9eba1, 13); al = rotl(al, 10) + cl = fn3(cl, dl, el, al, bl, m[6], 0x6ed9eba1, 6); el = rotl(el, 10) + bl = fn3(bl, cl, dl, el, al, m[13], 0x6ed9eba1, 5); dl = rotl(dl, 10) + al = fn3(al, bl, cl, dl, el, m[11], 0x6ed9eba1, 12); cl = rotl(cl, 10) + el = fn3(el, al, bl, cl, dl, m[5], 0x6ed9eba1, 7); bl = rotl(bl, 10) + dl = fn3(dl, el, al, bl, cl, m[12], 0x6ed9eba1, 5); al = rotl(al, 10) + + // Mj = 1, 9, 11, 10, 0, 8, 12, 4, 13, 3, 7, 15, 14, 5, 6, 2 + // K = 0x8f1bbcdc + // Sj = 11, 12, 14, 15, 14, 15, 9, 8, 9, 14, 5, 6, 8, 6, 5, 12 + cl = fn4(cl, dl, el, al, bl, m[1], 0x8f1bbcdc, 11); el = rotl(el, 10) + bl = fn4(bl, cl, dl, el, al, m[9], 0x8f1bbcdc, 12); dl = rotl(dl, 10) + al = fn4(al, bl, cl, dl, el, m[11], 0x8f1bbcdc, 14); cl = rotl(cl, 10) + el = fn4(el, al, bl, cl, dl, m[10], 0x8f1bbcdc, 15); bl = rotl(bl, 10) + dl = fn4(dl, el, al, bl, cl, m[0], 0x8f1bbcdc, 14); al = rotl(al, 10) + cl = fn4(cl, dl, el, al, bl, m[8], 0x8f1bbcdc, 15); el = rotl(el, 10) + bl = fn4(bl, cl, dl, el, al, m[12], 0x8f1bbcdc, 9); dl = rotl(dl, 10) + al = fn4(al, bl, cl, dl, el, m[4], 0x8f1bbcdc, 8); cl = rotl(cl, 10) + el = fn4(el, al, bl, cl, dl, m[13], 0x8f1bbcdc, 9); bl = rotl(bl, 10) + dl = fn4(dl, el, al, bl, cl, m[3], 0x8f1bbcdc, 14); al = rotl(al, 10) + cl = fn4(cl, dl, el, al, bl, m[7], 0x8f1bbcdc, 5); el = rotl(el, 10) + bl = fn4(bl, cl, dl, el, al, m[15], 0x8f1bbcdc, 6); dl = rotl(dl, 10) + al = fn4(al, bl, cl, dl, el, m[14], 0x8f1bbcdc, 8); cl = rotl(cl, 10) + el = fn4(el, al, bl, cl, dl, m[5], 0x8f1bbcdc, 6); bl = rotl(bl, 10) + dl = fn4(dl, el, al, bl, cl, m[6], 0x8f1bbcdc, 5); al = rotl(al, 10) + cl = fn4(cl, dl, el, al, bl, m[2], 0x8f1bbcdc, 12); el = rotl(el, 10) + + // Mj = 4, 0, 5, 9, 7, 12, 2, 10, 14, 1, 3, 8, 11, 6, 15, 13 + // K = 0xa953fd4e + // Sj = 9, 15, 5, 11, 6, 8, 13, 12, 5, 12, 13, 14, 11, 8, 5, 6 + bl = fn5(bl, cl, dl, el, al, m[4], 0xa953fd4e, 9); dl = rotl(dl, 10) + al = fn5(al, bl, cl, dl, el, m[0], 0xa953fd4e, 15); cl = rotl(cl, 10) + el = fn5(el, al, bl, cl, dl, m[5], 0xa953fd4e, 5); bl = rotl(bl, 10) + dl = fn5(dl, el, al, bl, cl, m[9], 0xa953fd4e, 11); al = rotl(al, 10) + cl = fn5(cl, dl, el, al, bl, m[7], 0xa953fd4e, 6); el = rotl(el, 10) + bl = fn5(bl, cl, dl, el, al, m[12], 0xa953fd4e, 8); dl = rotl(dl, 10) + al = fn5(al, bl, cl, dl, el, m[2], 0xa953fd4e, 13); cl = rotl(cl, 10) + el = fn5(el, al, bl, cl, dl, m[10], 0xa953fd4e, 12); bl = rotl(bl, 10) + dl = fn5(dl, el, al, bl, cl, m[14], 0xa953fd4e, 5); al = rotl(al, 10) + cl = fn5(cl, dl, el, al, bl, m[1], 0xa953fd4e, 12); el = rotl(el, 10) + bl = fn5(bl, cl, dl, el, al, m[3], 0xa953fd4e, 13); dl = rotl(dl, 10) + al = fn5(al, bl, cl, dl, el, m[8], 0xa953fd4e, 14); cl = rotl(cl, 10) + el = fn5(el, al, bl, cl, dl, m[11], 0xa953fd4e, 11); bl = rotl(bl, 10) + dl = fn5(dl, el, al, bl, cl, m[6], 0xa953fd4e, 8); al = rotl(al, 10) + cl = fn5(cl, dl, el, al, bl, m[15], 0xa953fd4e, 5); el = rotl(el, 10) + bl = fn5(bl, cl, dl, el, al, m[13], 0xa953fd4e, 6); dl = rotl(dl, 10) + + var ar = this._a + var br = this._b + var cr = this._c + var dr = this._d + var er = this._e + + // M'j = 5, 14, 7, 0, 9, 2, 11, 4, 13, 6, 15, 8, 1, 10, 3, 12 + // K' = 0x50a28be6 + // S'j = 8, 9, 9, 11, 13, 15, 15, 5, 7, 7, 8, 11, 14, 14, 12, 6 + ar = fn5(ar, br, cr, dr, er, m[5], 0x50a28be6, 8); cr = rotl(cr, 10) + er = fn5(er, ar, br, cr, dr, m[14], 0x50a28be6, 9); br = rotl(br, 10) + dr = fn5(dr, er, ar, br, cr, m[7], 0x50a28be6, 9); ar = rotl(ar, 10) + cr = fn5(cr, dr, er, ar, br, m[0], 0x50a28be6, 11); er = rotl(er, 10) + br = fn5(br, cr, dr, er, ar, m[9], 0x50a28be6, 13); dr = rotl(dr, 10) + ar = fn5(ar, br, cr, dr, er, m[2], 0x50a28be6, 15); cr = rotl(cr, 10) + er = fn5(er, ar, br, cr, dr, m[11], 0x50a28be6, 15); br = rotl(br, 10) + dr = fn5(dr, er, ar, br, cr, m[4], 0x50a28be6, 5); ar = rotl(ar, 10) + cr = fn5(cr, dr, er, ar, br, m[13], 0x50a28be6, 7); er = rotl(er, 10) + br = fn5(br, cr, dr, er, ar, m[6], 0x50a28be6, 7); dr = rotl(dr, 10) + ar = fn5(ar, br, cr, dr, er, m[15], 0x50a28be6, 8); cr = rotl(cr, 10) + er = fn5(er, ar, br, cr, dr, m[8], 0x50a28be6, 11); br = rotl(br, 10) + dr = fn5(dr, er, ar, br, cr, m[1], 0x50a28be6, 14); ar = rotl(ar, 10) + cr = fn5(cr, dr, er, ar, br, m[10], 0x50a28be6, 14); er = rotl(er, 10) + br = fn5(br, cr, dr, er, ar, m[3], 0x50a28be6, 12); dr = rotl(dr, 10) + ar = fn5(ar, br, cr, dr, er, m[12], 0x50a28be6, 6); cr = rotl(cr, 10) + + // M'j = 6, 11, 3, 7, 0, 13, 5, 10, 14, 15, 8, 12, 4, 9, 1, 2 + // K' = 0x5c4dd124 + // S'j = 9, 13, 15, 7, 12, 8, 9, 11, 7, 7, 12, 7, 6, 15, 13, 11 + er = fn4(er, ar, br, cr, dr, m[6], 0x5c4dd124, 9); br = rotl(br, 10) + dr = fn4(dr, er, ar, br, cr, m[11], 0x5c4dd124, 13); ar = rotl(ar, 10) + cr = fn4(cr, dr, er, ar, br, m[3], 0x5c4dd124, 15); er = rotl(er, 10) + br = fn4(br, cr, dr, er, ar, m[7], 0x5c4dd124, 7); dr = rotl(dr, 10) + ar = fn4(ar, br, cr, dr, er, m[0], 0x5c4dd124, 12); cr = rotl(cr, 10) + er = fn4(er, ar, br, cr, dr, m[13], 0x5c4dd124, 8); br = rotl(br, 10) + dr = fn4(dr, er, ar, br, cr, m[5], 0x5c4dd124, 9); ar = rotl(ar, 10) + cr = fn4(cr, dr, er, ar, br, m[10], 0x5c4dd124, 11); er = rotl(er, 10) + br = fn4(br, cr, dr, er, ar, m[14], 0x5c4dd124, 7); dr = rotl(dr, 10) + ar = fn4(ar, br, cr, dr, er, m[15], 0x5c4dd124, 7); cr = rotl(cr, 10) + er = fn4(er, ar, br, cr, dr, m[8], 0x5c4dd124, 12); br = rotl(br, 10) + dr = fn4(dr, er, ar, br, cr, m[12], 0x5c4dd124, 7); ar = rotl(ar, 10) + cr = fn4(cr, dr, er, ar, br, m[4], 0x5c4dd124, 6); er = rotl(er, 10) + br = fn4(br, cr, dr, er, ar, m[9], 0x5c4dd124, 15); dr = rotl(dr, 10) + ar = fn4(ar, br, cr, dr, er, m[1], 0x5c4dd124, 13); cr = rotl(cr, 10) + er = fn4(er, ar, br, cr, dr, m[2], 0x5c4dd124, 11); br = rotl(br, 10) + + // M'j = 15, 5, 1, 3, 7, 14, 6, 9, 11, 8, 12, 2, 10, 0, 4, 13 + // K' = 0x6d703ef3 + // S'j = 9, 7, 15, 11, 8, 6, 6, 14, 12, 13, 5, 14, 13, 13, 7, 5 + dr = fn3(dr, er, ar, br, cr, m[15], 0x6d703ef3, 9); ar = rotl(ar, 10) + cr = fn3(cr, dr, er, ar, br, m[5], 0x6d703ef3, 7); er = rotl(er, 10) + br = fn3(br, cr, dr, er, ar, m[1], 0x6d703ef3, 15); dr = rotl(dr, 10) + ar = fn3(ar, br, cr, dr, er, m[3], 0x6d703ef3, 11); cr = rotl(cr, 10) + er = fn3(er, ar, br, cr, dr, m[7], 0x6d703ef3, 8); br = rotl(br, 10) + dr = fn3(dr, er, ar, br, cr, m[14], 0x6d703ef3, 6); ar = rotl(ar, 10) + cr = fn3(cr, dr, er, ar, br, m[6], 0x6d703ef3, 6); er = rotl(er, 10) + br = fn3(br, cr, dr, er, ar, m[9], 0x6d703ef3, 14); dr = rotl(dr, 10) + ar = fn3(ar, br, cr, dr, er, m[11], 0x6d703ef3, 12); cr = rotl(cr, 10) + er = fn3(er, ar, br, cr, dr, m[8], 0x6d703ef3, 13); br = rotl(br, 10) + dr = fn3(dr, er, ar, br, cr, m[12], 0x6d703ef3, 5); ar = rotl(ar, 10) + cr = fn3(cr, dr, er, ar, br, m[2], 0x6d703ef3, 14); er = rotl(er, 10) + br = fn3(br, cr, dr, er, ar, m[10], 0x6d703ef3, 13); dr = rotl(dr, 10) + ar = fn3(ar, br, cr, dr, er, m[0], 0x6d703ef3, 13); cr = rotl(cr, 10) + er = fn3(er, ar, br, cr, dr, m[4], 0x6d703ef3, 7); br = rotl(br, 10) + dr = fn3(dr, er, ar, br, cr, m[13], 0x6d703ef3, 5); ar = rotl(ar, 10) + + // M'j = 8, 6, 4, 1, 3, 11, 15, 0, 5, 12, 2, 13, 9, 7, 10, 14 + // K' = 0x7a6d76e9 + // S'j = 15, 5, 8, 11, 14, 14, 6, 14, 6, 9, 12, 9, 12, 5, 15, 8 + cr = fn2(cr, dr, er, ar, br, m[8], 0x7a6d76e9, 15); er = rotl(er, 10) + br = fn2(br, cr, dr, er, ar, m[6], 0x7a6d76e9, 5); dr = rotl(dr, 10) + ar = fn2(ar, br, cr, dr, er, m[4], 0x7a6d76e9, 8); cr = rotl(cr, 10) + er = fn2(er, ar, br, cr, dr, m[1], 0x7a6d76e9, 11); br = rotl(br, 10) + dr = fn2(dr, er, ar, br, cr, m[3], 0x7a6d76e9, 14); ar = rotl(ar, 10) + cr = fn2(cr, dr, er, ar, br, m[11], 0x7a6d76e9, 14); er = rotl(er, 10) + br = fn2(br, cr, dr, er, ar, m[15], 0x7a6d76e9, 6); dr = rotl(dr, 10) + ar = fn2(ar, br, cr, dr, er, m[0], 0x7a6d76e9, 14); cr = rotl(cr, 10) + er = fn2(er, ar, br, cr, dr, m[5], 0x7a6d76e9, 6); br = rotl(br, 10) + dr = fn2(dr, er, ar, br, cr, m[12], 0x7a6d76e9, 9); ar = rotl(ar, 10) + cr = fn2(cr, dr, er, ar, br, m[2], 0x7a6d76e9, 12); er = rotl(er, 10) + br = fn2(br, cr, dr, er, ar, m[13], 0x7a6d76e9, 9); dr = rotl(dr, 10) + ar = fn2(ar, br, cr, dr, er, m[9], 0x7a6d76e9, 12); cr = rotl(cr, 10) + er = fn2(er, ar, br, cr, dr, m[7], 0x7a6d76e9, 5); br = rotl(br, 10) + dr = fn2(dr, er, ar, br, cr, m[10], 0x7a6d76e9, 15); ar = rotl(ar, 10) + cr = fn2(cr, dr, er, ar, br, m[14], 0x7a6d76e9, 8); er = rotl(er, 10) + + // M'j = 12, 15, 10, 4, 1, 5, 8, 7, 6, 2, 13, 14, 0, 3, 9, 11 + // K' = 0x00000000 + // S'j = 8, 5, 12, 9, 12, 5, 14, 6, 8, 13, 6, 5, 15, 13, 11, 11 + br = fn1(br, cr, dr, er, ar, m[12], 0x00000000, 8); dr = rotl(dr, 10) + ar = fn1(ar, br, cr, dr, er, m[15], 0x00000000, 5); cr = rotl(cr, 10) + er = fn1(er, ar, br, cr, dr, m[10], 0x00000000, 12); br = rotl(br, 10) + dr = fn1(dr, er, ar, br, cr, m[4], 0x00000000, 9); ar = rotl(ar, 10) + cr = fn1(cr, dr, er, ar, br, m[1], 0x00000000, 12); er = rotl(er, 10) + br = fn1(br, cr, dr, er, ar, m[5], 0x00000000, 5); dr = rotl(dr, 10) + ar = fn1(ar, br, cr, dr, er, m[8], 0x00000000, 14); cr = rotl(cr, 10) + er = fn1(er, ar, br, cr, dr, m[7], 0x00000000, 6); br = rotl(br, 10) + dr = fn1(dr, er, ar, br, cr, m[6], 0x00000000, 8); ar = rotl(ar, 10) + cr = fn1(cr, dr, er, ar, br, m[2], 0x00000000, 13); er = rotl(er, 10) + br = fn1(br, cr, dr, er, ar, m[13], 0x00000000, 6); dr = rotl(dr, 10) + ar = fn1(ar, br, cr, dr, er, m[14], 0x00000000, 5); cr = rotl(cr, 10) + er = fn1(er, ar, br, cr, dr, m[0], 0x00000000, 15); br = rotl(br, 10) + dr = fn1(dr, er, ar, br, cr, m[3], 0x00000000, 13); ar = rotl(ar, 10) + cr = fn1(cr, dr, er, ar, br, m[9], 0x00000000, 11); er = rotl(er, 10) + br = fn1(br, cr, dr, er, ar, m[11], 0x00000000, 11); dr = rotl(dr, 10) + + // change state + var t = (this._b + cl + dr) | 0 + this._b = (this._c + dl + er) | 0 + this._c = (this._d + el + ar) | 0 + this._d = (this._e + al + br) | 0 + this._e = (this._a + bl + cr) | 0 + this._a = t +} + +RIPEMD160.prototype._digest = function () { + // create padding and handle blocks + this._block[this._blockOffset++] = 0x80 + if (this._blockOffset > 56) { + this._block.fill(0, this._blockOffset, 64) + this._update() + this._blockOffset = 0 + } + + this._block.fill(0, this._blockOffset, 56) + this._block.writeUInt32LE(this._length[0], 56) + this._block.writeUInt32LE(this._length[1], 60) + this._update() + + // produce result + var buffer = new Buffer(20) + buffer.writeInt32LE(this._a, 0) + buffer.writeInt32LE(this._b, 4) + buffer.writeInt32LE(this._c, 8) + buffer.writeInt32LE(this._d, 12) + buffer.writeInt32LE(this._e, 16) + return buffer +} + +function rotl (x, n) { + return (x << n) | (x >>> (32 - n)) +} + +function fn1 (a, b, c, d, e, m, k, s) { + return (rotl((a + (b ^ c ^ d) + m + k) | 0, s) + e) | 0 +} + +function fn2 (a, b, c, d, e, m, k, s) { + return (rotl((a + ((b & c) | ((~b) & d)) + m + k) | 0, s) + e) | 0 +} + +function fn3 (a, b, c, d, e, m, k, s) { + return (rotl((a + ((b | (~c)) ^ d) + m + k) | 0, s) + e) | 0 +} + +function fn4 (a, b, c, d, e, m, k, s) { + return (rotl((a + ((b & d) | (c & (~d))) + m + k) | 0, s) + e) | 0 +} + +function fn5 (a, b, c, d, e, m, k, s) { + return (rotl((a + (b ^ (c | (~d))) + m + k) | 0, s) + e) | 0 +} + +module.exports = RIPEMD160 + +}).call(this,require("buffer").Buffer) +},{"buffer":69,"hash-base":12,"inherits":13}],12:[function(require,module,exports){ +(function (Buffer){ +'use strict' +var Transform = require('stream').Transform +var inherits = require('inherits') + +function HashBase (blockSize) { + Transform.call(this) + + this._block = new Buffer(blockSize) + this._blockSize = blockSize + this._blockOffset = 0 + this._length = [0, 0, 0, 0] + + this._finalized = false +} + +inherits(HashBase, Transform) + +HashBase.prototype._transform = function (chunk, encoding, callback) { + var error = null + try { + if (encoding !== 'buffer') chunk = new Buffer(chunk, encoding) + this.update(chunk) + } catch (err) { + error = err + } + + callback(error) +} + +HashBase.prototype._flush = function (callback) { + var error = null + try { + this.push(this._digest()) + } catch (err) { + error = err + } + + callback(error) +} + +HashBase.prototype.update = function (data, encoding) { + if (!Buffer.isBuffer(data) && typeof data !== 'string') throw new TypeError('Data must be a string or a buffer') + if (this._finalized) throw new Error('Digest already called') + if (!Buffer.isBuffer(data)) data = new Buffer(data, encoding || 'binary') + + // consume data + var block = this._block + var offset = 0 + while (this._blockOffset + data.length - offset >= this._blockSize) { + for (var i = this._blockOffset; i < this._blockSize;) block[i++] = data[offset++] + this._update() + this._blockOffset = 0 + } + while (offset < data.length) block[this._blockOffset++] = data[offset++] + + // update length + for (var j = 0, carry = data.length * 8; carry > 0; ++j) { + this._length[j] += carry + carry = (this._length[j] / 0x0100000000) | 0 + if (carry > 0) this._length[j] -= 0x0100000000 * carry + } + + return this +} + +HashBase.prototype._update = function (data) { + throw new Error('_update is not implemented') +} + +HashBase.prototype.digest = function (encoding) { + if (this._finalized) throw new Error('Digest already called') + this._finalized = true + + var digest = this._digest() + if (encoding !== undefined) digest = digest.toString(encoding) + return digest +} + +HashBase.prototype._digest = function () { + throw new Error('_digest is not implemented') +} + +module.exports = HashBase + +}).call(this,require("buffer").Buffer) +},{"buffer":69,"inherits":13,"stream":171}],13:[function(require,module,exports){ +if (typeof Object.create === 'function') { + // implementation from standard node.js 'util' module + module.exports = function inherits(ctor, superCtor) { + ctor.super_ = superCtor + ctor.prototype = Object.create(superCtor.prototype, { + constructor: { + value: ctor, + enumerable: false, + writable: true, + configurable: true + } + }); + }; +} else { + // old school shim for old browsers + module.exports = function inherits(ctor, superCtor) { + ctor.super_ = superCtor + var TempCtor = function () {} + TempCtor.prototype = superCtor.prototype + ctor.prototype = new TempCtor() + ctor.prototype.constructor = ctor + } +} + +},{}],14:[function(require,module,exports){ +/* eslint-disable node/no-deprecated-api */ +var buffer = require('buffer') +var Buffer = buffer.Buffer + +if (Buffer.from && Buffer.alloc && Buffer.allocUnsafe && Buffer.allocUnsafeSlow) { + module.exports = buffer +} else { + // Copy properties from require('buffer') + Object.keys(buffer).forEach(function (prop) { + exports[prop] = buffer[prop] + }) + exports.Buffer = SafeBuffer +} + +function SafeBuffer (arg, encodingOrOffset, length) { + return Buffer(arg, encodingOrOffset, length) +} + +// Copy static methods from Buffer +Object.keys(Buffer).forEach(function (prop) { + SafeBuffer[prop] = Buffer[prop] +}) + +SafeBuffer.from = function (arg, encodingOrOffset, length) { + if (typeof arg === 'number') { + throw new TypeError('Argument must not be a number') + } + return Buffer(arg, encodingOrOffset, length) +} + +SafeBuffer.alloc = function (size, fill, encoding) { + if (typeof size !== 'number') { + throw new TypeError('Argument must be a number') + } + var buf = Buffer(size) + if (fill !== undefined) { + if (typeof encoding === 'string') { + buf.fill(fill, encoding) + } else { + buf.fill(fill) + } + } else { + buf.fill(0) + } + return buf +} + +SafeBuffer.allocUnsafe = function (size) { + if (typeof size !== 'number') { + throw new TypeError('Argument must be a number') + } + return Buffer(size) +} + +SafeBuffer.allocUnsafeSlow = function (size) { + if (typeof size !== 'number') { + throw new TypeError('Argument must be a number') + } + return buffer.SlowBuffer(size) +} + +},{"buffer":69}],15:[function(require,module,exports){ +(function (Buffer){ +// prototype class for hash functions +function Hash (blockSize, finalSize) { + this._block = new Buffer(blockSize) + this._finalSize = finalSize + this._blockSize = blockSize + this._len = 0 + this._s = 0 +} + +Hash.prototype.update = function (data, enc) { + if (typeof data === 'string') { + enc = enc || 'utf8' + data = new Buffer(data, enc) + } + + var l = this._len += data.length + var s = this._s || 0 + var f = 0 + var buffer = this._block + + while (s < l) { + var t = Math.min(data.length, f + this._blockSize - (s % this._blockSize)) + var ch = (t - f) + + for (var i = 0; i < ch; i++) { + buffer[(s % this._blockSize) + i] = data[i + f] + } + + s += ch + f += ch + + if ((s % this._blockSize) === 0) { + this._update(buffer) + } + } + this._s = s + + return this +} + +Hash.prototype.digest = function (enc) { + // Suppose the length of the message M, in bits, is l + var l = this._len * 8 + + // Append the bit 1 to the end of the message + this._block[this._len % this._blockSize] = 0x80 + + // and then k zero bits, where k is the smallest non-negative solution to the equation (l + 1 + k) === finalSize mod blockSize + this._block.fill(0, this._len % this._blockSize + 1) + + if (l % (this._blockSize * 8) >= this._finalSize * 8) { + this._update(this._block) + this._block.fill(0) + } + + // to this append the block which is equal to the number l written in binary + // TODO: handle case where l is > Math.pow(2, 29) + this._block.writeInt32BE(l, this._blockSize - 4) + + var hash = this._update(this._block) || this._hash() + + return enc ? hash.toString(enc) : hash +} + +Hash.prototype._update = function () { + throw new Error('_update must be implemented by subclass') +} + +module.exports = Hash + +}).call(this,require("buffer").Buffer) +},{"buffer":69}],16:[function(require,module,exports){ +var exports = module.exports = function SHA (algorithm) { + algorithm = algorithm.toLowerCase() + + var Algorithm = exports[algorithm] + if (!Algorithm) throw new Error(algorithm + ' is not supported (we accept pull requests)') + + return new Algorithm() +} + +exports.sha = require('./sha') +exports.sha1 = require('./sha1') +exports.sha224 = require('./sha224') +exports.sha256 = require('./sha256') +exports.sha384 = require('./sha384') +exports.sha512 = require('./sha512') + +},{"./sha":18,"./sha1":19,"./sha224":20,"./sha256":21,"./sha384":22,"./sha512":23}],17:[function(require,module,exports){ +arguments[4][13][0].apply(exports,arguments) +},{"dup":13}],18:[function(require,module,exports){ +(function (Buffer){ +/* + * A JavaScript implementation of the Secure Hash Algorithm, SHA-0, as defined + * in FIPS PUB 180-1 + * This source code is derived from sha1.js of the same repository. + * The difference between SHA-0 and SHA-1 is just a bitwise rotate left + * operation was added. + */ + +var inherits = require('inherits') +var Hash = require('./hash') + +var K = [ + 0x5a827999, 0x6ed9eba1, 0x8f1bbcdc | 0, 0xca62c1d6 | 0 +] + +var W = new Array(80) + +function Sha () { + this.init() + this._w = W + + Hash.call(this, 64, 56) +} + +inherits(Sha, Hash) + +Sha.prototype.init = function () { + this._a = 0x67452301 + this._b = 0xefcdab89 + this._c = 0x98badcfe + this._d = 0x10325476 + this._e = 0xc3d2e1f0 + + return this +} + +function rotl5 (num) { + return (num << 5) | (num >>> 27) +} + +function rotl30 (num) { + return (num << 30) | (num >>> 2) +} + +function ft (s, b, c, d) { + if (s === 0) return (b & c) | ((~b) & d) + if (s === 2) return (b & c) | (b & d) | (c & d) + return b ^ c ^ d +} + +Sha.prototype._update = function (M) { + var W = this._w + + var a = this._a | 0 + var b = this._b | 0 + var c = this._c | 0 + var d = this._d | 0 + var e = this._e | 0 + + for (var i = 0; i < 16; ++i) W[i] = M.readInt32BE(i * 4) + for (; i < 80; ++i) W[i] = W[i - 3] ^ W[i - 8] ^ W[i - 14] ^ W[i - 16] + + for (var j = 0; j < 80; ++j) { + var s = ~~(j / 20) + var t = (rotl5(a) + ft(s, b, c, d) + e + W[j] + K[s]) | 0 + + e = d + d = c + c = rotl30(b) + b = a + a = t + } + + this._a = (a + this._a) | 0 + this._b = (b + this._b) | 0 + this._c = (c + this._c) | 0 + this._d = (d + this._d) | 0 + this._e = (e + this._e) | 0 +} + +Sha.prototype._hash = function () { + var H = new Buffer(20) + + H.writeInt32BE(this._a | 0, 0) + H.writeInt32BE(this._b | 0, 4) + H.writeInt32BE(this._c | 0, 8) + H.writeInt32BE(this._d | 0, 12) + H.writeInt32BE(this._e | 0, 16) + + return H +} + +module.exports = Sha + +}).call(this,require("buffer").Buffer) +},{"./hash":15,"buffer":69,"inherits":17}],19:[function(require,module,exports){ +(function (Buffer){ +/* + * A JavaScript implementation of the Secure Hash Algorithm, SHA-1, as defined + * in FIPS PUB 180-1 + * Version 2.1a Copyright Paul Johnston 2000 - 2002. + * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet + * Distributed under the BSD License + * See http://pajhome.org.uk/crypt/md5 for details. + */ + +var inherits = require('inherits') +var Hash = require('./hash') + +var K = [ + 0x5a827999, 0x6ed9eba1, 0x8f1bbcdc | 0, 0xca62c1d6 | 0 +] + +var W = new Array(80) + +function Sha1 () { + this.init() + this._w = W + + Hash.call(this, 64, 56) +} + +inherits(Sha1, Hash) + +Sha1.prototype.init = function () { + this._a = 0x67452301 + this._b = 0xefcdab89 + this._c = 0x98badcfe + this._d = 0x10325476 + this._e = 0xc3d2e1f0 + + return this +} + +function rotl1 (num) { + return (num << 1) | (num >>> 31) +} + +function rotl5 (num) { + return (num << 5) | (num >>> 27) +} + +function rotl30 (num) { + return (num << 30) | (num >>> 2) +} + +function ft (s, b, c, d) { + if (s === 0) return (b & c) | ((~b) & d) + if (s === 2) return (b & c) | (b & d) | (c & d) + return b ^ c ^ d +} + +Sha1.prototype._update = function (M) { + var W = this._w + + var a = this._a | 0 + var b = this._b | 0 + var c = this._c | 0 + var d = this._d | 0 + var e = this._e | 0 + + for (var i = 0; i < 16; ++i) W[i] = M.readInt32BE(i * 4) + for (; i < 80; ++i) W[i] = rotl1(W[i - 3] ^ W[i - 8] ^ W[i - 14] ^ W[i - 16]) + + for (var j = 0; j < 80; ++j) { + var s = ~~(j / 20) + var t = (rotl5(a) + ft(s, b, c, d) + e + W[j] + K[s]) | 0 + + e = d + d = c + c = rotl30(b) + b = a + a = t + } + + this._a = (a + this._a) | 0 + this._b = (b + this._b) | 0 + this._c = (c + this._c) | 0 + this._d = (d + this._d) | 0 + this._e = (e + this._e) | 0 +} + +Sha1.prototype._hash = function () { + var H = new Buffer(20) + + H.writeInt32BE(this._a | 0, 0) + H.writeInt32BE(this._b | 0, 4) + H.writeInt32BE(this._c | 0, 8) + H.writeInt32BE(this._d | 0, 12) + H.writeInt32BE(this._e | 0, 16) + + return H +} + +module.exports = Sha1 + +}).call(this,require("buffer").Buffer) +},{"./hash":15,"buffer":69,"inherits":17}],20:[function(require,module,exports){ +(function (Buffer){ +/** + * A JavaScript implementation of the Secure Hash Algorithm, SHA-256, as defined + * in FIPS 180-2 + * Version 2.2-beta Copyright Angel Marin, Paul Johnston 2000 - 2009. + * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet + * + */ + +var inherits = require('inherits') +var Sha256 = require('./sha256') +var Hash = require('./hash') + +var W = new Array(64) + +function Sha224 () { + this.init() + + this._w = W // new Array(64) + + Hash.call(this, 64, 56) +} + +inherits(Sha224, Sha256) + +Sha224.prototype.init = function () { + this._a = 0xc1059ed8 + this._b = 0x367cd507 + this._c = 0x3070dd17 + this._d = 0xf70e5939 + this._e = 0xffc00b31 + this._f = 0x68581511 + this._g = 0x64f98fa7 + this._h = 0xbefa4fa4 + + return this +} + +Sha224.prototype._hash = function () { + var H = new Buffer(28) + + H.writeInt32BE(this._a, 0) + H.writeInt32BE(this._b, 4) + H.writeInt32BE(this._c, 8) + H.writeInt32BE(this._d, 12) + H.writeInt32BE(this._e, 16) + H.writeInt32BE(this._f, 20) + H.writeInt32BE(this._g, 24) + + return H +} + +module.exports = Sha224 + +}).call(this,require("buffer").Buffer) +},{"./hash":15,"./sha256":21,"buffer":69,"inherits":17}],21:[function(require,module,exports){ +(function (Buffer){ +/** + * A JavaScript implementation of the Secure Hash Algorithm, SHA-256, as defined + * in FIPS 180-2 + * Version 2.2-beta Copyright Angel Marin, Paul Johnston 2000 - 2009. + * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet + * + */ + +var inherits = require('inherits') +var Hash = require('./hash') + +var K = [ + 0x428A2F98, 0x71374491, 0xB5C0FBCF, 0xE9B5DBA5, + 0x3956C25B, 0x59F111F1, 0x923F82A4, 0xAB1C5ED5, + 0xD807AA98, 0x12835B01, 0x243185BE, 0x550C7DC3, + 0x72BE5D74, 0x80DEB1FE, 0x9BDC06A7, 0xC19BF174, + 0xE49B69C1, 0xEFBE4786, 0x0FC19DC6, 0x240CA1CC, + 0x2DE92C6F, 0x4A7484AA, 0x5CB0A9DC, 0x76F988DA, + 0x983E5152, 0xA831C66D, 0xB00327C8, 0xBF597FC7, + 0xC6E00BF3, 0xD5A79147, 0x06CA6351, 0x14292967, + 0x27B70A85, 0x2E1B2138, 0x4D2C6DFC, 0x53380D13, + 0x650A7354, 0x766A0ABB, 0x81C2C92E, 0x92722C85, + 0xA2BFE8A1, 0xA81A664B, 0xC24B8B70, 0xC76C51A3, + 0xD192E819, 0xD6990624, 0xF40E3585, 0x106AA070, + 0x19A4C116, 0x1E376C08, 0x2748774C, 0x34B0BCB5, + 0x391C0CB3, 0x4ED8AA4A, 0x5B9CCA4F, 0x682E6FF3, + 0x748F82EE, 0x78A5636F, 0x84C87814, 0x8CC70208, + 0x90BEFFFA, 0xA4506CEB, 0xBEF9A3F7, 0xC67178F2 +] + +var W = new Array(64) + +function Sha256 () { + this.init() + + this._w = W // new Array(64) + + Hash.call(this, 64, 56) +} + +inherits(Sha256, Hash) + +Sha256.prototype.init = function () { + this._a = 0x6a09e667 + this._b = 0xbb67ae85 + this._c = 0x3c6ef372 + this._d = 0xa54ff53a + this._e = 0x510e527f + this._f = 0x9b05688c + this._g = 0x1f83d9ab + this._h = 0x5be0cd19 + + return this +} + +function ch (x, y, z) { + return z ^ (x & (y ^ z)) +} + +function maj (x, y, z) { + return (x & y) | (z & (x | y)) +} + +function sigma0 (x) { + return (x >>> 2 | x << 30) ^ (x >>> 13 | x << 19) ^ (x >>> 22 | x << 10) +} + +function sigma1 (x) { + return (x >>> 6 | x << 26) ^ (x >>> 11 | x << 21) ^ (x >>> 25 | x << 7) +} + +function gamma0 (x) { + return (x >>> 7 | x << 25) ^ (x >>> 18 | x << 14) ^ (x >>> 3) +} + +function gamma1 (x) { + return (x >>> 17 | x << 15) ^ (x >>> 19 | x << 13) ^ (x >>> 10) +} + +Sha256.prototype._update = function (M) { + var W = this._w + + var a = this._a | 0 + var b = this._b | 0 + var c = this._c | 0 + var d = this._d | 0 + var e = this._e | 0 + var f = this._f | 0 + var g = this._g | 0 + var h = this._h | 0 + + for (var i = 0; i < 16; ++i) W[i] = M.readInt32BE(i * 4) + for (; i < 64; ++i) W[i] = (gamma1(W[i - 2]) + W[i - 7] + gamma0(W[i - 15]) + W[i - 16]) | 0 + + for (var j = 0; j < 64; ++j) { + var T1 = (h + sigma1(e) + ch(e, f, g) + K[j] + W[j]) | 0 + var T2 = (sigma0(a) + maj(a, b, c)) | 0 + + h = g + g = f + f = e + e = (d + T1) | 0 + d = c + c = b + b = a + a = (T1 + T2) | 0 + } + + this._a = (a + this._a) | 0 + this._b = (b + this._b) | 0 + this._c = (c + this._c) | 0 + this._d = (d + this._d) | 0 + this._e = (e + this._e) | 0 + this._f = (f + this._f) | 0 + this._g = (g + this._g) | 0 + this._h = (h + this._h) | 0 +} + +Sha256.prototype._hash = function () { + var H = new Buffer(32) + + H.writeInt32BE(this._a, 0) + H.writeInt32BE(this._b, 4) + H.writeInt32BE(this._c, 8) + H.writeInt32BE(this._d, 12) + H.writeInt32BE(this._e, 16) + H.writeInt32BE(this._f, 20) + H.writeInt32BE(this._g, 24) + H.writeInt32BE(this._h, 28) + + return H +} + +module.exports = Sha256 + +}).call(this,require("buffer").Buffer) +},{"./hash":15,"buffer":69,"inherits":17}],22:[function(require,module,exports){ +(function (Buffer){ +var inherits = require('inherits') +var SHA512 = require('./sha512') +var Hash = require('./hash') + +var W = new Array(160) + +function Sha384 () { + this.init() + this._w = W + + Hash.call(this, 128, 112) +} + +inherits(Sha384, SHA512) + +Sha384.prototype.init = function () { + this._ah = 0xcbbb9d5d + this._bh = 0x629a292a + this._ch = 0x9159015a + this._dh = 0x152fecd8 + this._eh = 0x67332667 + this._fh = 0x8eb44a87 + this._gh = 0xdb0c2e0d + this._hh = 0x47b5481d + + this._al = 0xc1059ed8 + this._bl = 0x367cd507 + this._cl = 0x3070dd17 + this._dl = 0xf70e5939 + this._el = 0xffc00b31 + this._fl = 0x68581511 + this._gl = 0x64f98fa7 + this._hl = 0xbefa4fa4 + + return this +} + +Sha384.prototype._hash = function () { + var H = new Buffer(48) + + function writeInt64BE (h, l, offset) { + H.writeInt32BE(h, offset) + H.writeInt32BE(l, offset + 4) + } + + writeInt64BE(this._ah, this._al, 0) + writeInt64BE(this._bh, this._bl, 8) + writeInt64BE(this._ch, this._cl, 16) + writeInt64BE(this._dh, this._dl, 24) + writeInt64BE(this._eh, this._el, 32) + writeInt64BE(this._fh, this._fl, 40) + + return H +} + +module.exports = Sha384 + +}).call(this,require("buffer").Buffer) +},{"./hash":15,"./sha512":23,"buffer":69,"inherits":17}],23:[function(require,module,exports){ +(function (Buffer){ +var inherits = require('inherits') +var Hash = require('./hash') + +var K = [ + 0x428a2f98, 0xd728ae22, 0x71374491, 0x23ef65cd, + 0xb5c0fbcf, 0xec4d3b2f, 0xe9b5dba5, 0x8189dbbc, + 0x3956c25b, 0xf348b538, 0x59f111f1, 0xb605d019, + 0x923f82a4, 0xaf194f9b, 0xab1c5ed5, 0xda6d8118, + 0xd807aa98, 0xa3030242, 0x12835b01, 0x45706fbe, + 0x243185be, 0x4ee4b28c, 0x550c7dc3, 0xd5ffb4e2, + 0x72be5d74, 0xf27b896f, 0x80deb1fe, 0x3b1696b1, + 0x9bdc06a7, 0x25c71235, 0xc19bf174, 0xcf692694, + 0xe49b69c1, 0x9ef14ad2, 0xefbe4786, 0x384f25e3, + 0x0fc19dc6, 0x8b8cd5b5, 0x240ca1cc, 0x77ac9c65, + 0x2de92c6f, 0x592b0275, 0x4a7484aa, 0x6ea6e483, + 0x5cb0a9dc, 0xbd41fbd4, 0x76f988da, 0x831153b5, + 0x983e5152, 0xee66dfab, 0xa831c66d, 0x2db43210, + 0xb00327c8, 0x98fb213f, 0xbf597fc7, 0xbeef0ee4, + 0xc6e00bf3, 0x3da88fc2, 0xd5a79147, 0x930aa725, + 0x06ca6351, 0xe003826f, 0x14292967, 0x0a0e6e70, + 0x27b70a85, 0x46d22ffc, 0x2e1b2138, 0x5c26c926, + 0x4d2c6dfc, 0x5ac42aed, 0x53380d13, 0x9d95b3df, + 0x650a7354, 0x8baf63de, 0x766a0abb, 0x3c77b2a8, + 0x81c2c92e, 0x47edaee6, 0x92722c85, 0x1482353b, + 0xa2bfe8a1, 0x4cf10364, 0xa81a664b, 0xbc423001, + 0xc24b8b70, 0xd0f89791, 0xc76c51a3, 0x0654be30, + 0xd192e819, 0xd6ef5218, 0xd6990624, 0x5565a910, + 0xf40e3585, 0x5771202a, 0x106aa070, 0x32bbd1b8, + 0x19a4c116, 0xb8d2d0c8, 0x1e376c08, 0x5141ab53, + 0x2748774c, 0xdf8eeb99, 0x34b0bcb5, 0xe19b48a8, + 0x391c0cb3, 0xc5c95a63, 0x4ed8aa4a, 0xe3418acb, + 0x5b9cca4f, 0x7763e373, 0x682e6ff3, 0xd6b2b8a3, + 0x748f82ee, 0x5defb2fc, 0x78a5636f, 0x43172f60, + 0x84c87814, 0xa1f0ab72, 0x8cc70208, 0x1a6439ec, + 0x90befffa, 0x23631e28, 0xa4506ceb, 0xde82bde9, + 0xbef9a3f7, 0xb2c67915, 0xc67178f2, 0xe372532b, + 0xca273ece, 0xea26619c, 0xd186b8c7, 0x21c0c207, + 0xeada7dd6, 0xcde0eb1e, 0xf57d4f7f, 0xee6ed178, + 0x06f067aa, 0x72176fba, 0x0a637dc5, 0xa2c898a6, + 0x113f9804, 0xbef90dae, 0x1b710b35, 0x131c471b, + 0x28db77f5, 0x23047d84, 0x32caab7b, 0x40c72493, + 0x3c9ebe0a, 0x15c9bebc, 0x431d67c4, 0x9c100d4c, + 0x4cc5d4be, 0xcb3e42b6, 0x597f299c, 0xfc657e2a, + 0x5fcb6fab, 0x3ad6faec, 0x6c44198c, 0x4a475817 +] + +var W = new Array(160) + +function Sha512 () { + this.init() + this._w = W + + Hash.call(this, 128, 112) +} + +inherits(Sha512, Hash) + +Sha512.prototype.init = function () { + this._ah = 0x6a09e667 + this._bh = 0xbb67ae85 + this._ch = 0x3c6ef372 + this._dh = 0xa54ff53a + this._eh = 0x510e527f + this._fh = 0x9b05688c + this._gh = 0x1f83d9ab + this._hh = 0x5be0cd19 + + this._al = 0xf3bcc908 + this._bl = 0x84caa73b + this._cl = 0xfe94f82b + this._dl = 0x5f1d36f1 + this._el = 0xade682d1 + this._fl = 0x2b3e6c1f + this._gl = 0xfb41bd6b + this._hl = 0x137e2179 + + return this +} + +function Ch (x, y, z) { + return z ^ (x & (y ^ z)) +} + +function maj (x, y, z) { + return (x & y) | (z & (x | y)) +} + +function sigma0 (x, xl) { + return (x >>> 28 | xl << 4) ^ (xl >>> 2 | x << 30) ^ (xl >>> 7 | x << 25) +} + +function sigma1 (x, xl) { + return (x >>> 14 | xl << 18) ^ (x >>> 18 | xl << 14) ^ (xl >>> 9 | x << 23) +} + +function Gamma0 (x, xl) { + return (x >>> 1 | xl << 31) ^ (x >>> 8 | xl << 24) ^ (x >>> 7) +} + +function Gamma0l (x, xl) { + return (x >>> 1 | xl << 31) ^ (x >>> 8 | xl << 24) ^ (x >>> 7 | xl << 25) +} + +function Gamma1 (x, xl) { + return (x >>> 19 | xl << 13) ^ (xl >>> 29 | x << 3) ^ (x >>> 6) +} + +function Gamma1l (x, xl) { + return (x >>> 19 | xl << 13) ^ (xl >>> 29 | x << 3) ^ (x >>> 6 | xl << 26) +} + +function getCarry (a, b) { + return (a >>> 0) < (b >>> 0) ? 1 : 0 +} + +Sha512.prototype._update = function (M) { + var W = this._w + + var ah = this._ah | 0 + var bh = this._bh | 0 + var ch = this._ch | 0 + var dh = this._dh | 0 + var eh = this._eh | 0 + var fh = this._fh | 0 + var gh = this._gh | 0 + var hh = this._hh | 0 + + var al = this._al | 0 + var bl = this._bl | 0 + var cl = this._cl | 0 + var dl = this._dl | 0 + var el = this._el | 0 + var fl = this._fl | 0 + var gl = this._gl | 0 + var hl = this._hl | 0 + + for (var i = 0; i < 32; i += 2) { + W[i] = M.readInt32BE(i * 4) + W[i + 1] = M.readInt32BE(i * 4 + 4) + } + for (; i < 160; i += 2) { + var xh = W[i - 15 * 2] + var xl = W[i - 15 * 2 + 1] + var gamma0 = Gamma0(xh, xl) + var gamma0l = Gamma0l(xl, xh) + + xh = W[i - 2 * 2] + xl = W[i - 2 * 2 + 1] + var gamma1 = Gamma1(xh, xl) + var gamma1l = Gamma1l(xl, xh) + + // W[i] = gamma0 + W[i - 7] + gamma1 + W[i - 16] + var Wi7h = W[i - 7 * 2] + var Wi7l = W[i - 7 * 2 + 1] + + var Wi16h = W[i - 16 * 2] + var Wi16l = W[i - 16 * 2 + 1] + + var Wil = (gamma0l + Wi7l) | 0 + var Wih = (gamma0 + Wi7h + getCarry(Wil, gamma0l)) | 0 + Wil = (Wil + gamma1l) | 0 + Wih = (Wih + gamma1 + getCarry(Wil, gamma1l)) | 0 + Wil = (Wil + Wi16l) | 0 + Wih = (Wih + Wi16h + getCarry(Wil, Wi16l)) | 0 + + W[i] = Wih + W[i + 1] = Wil + } + + for (var j = 0; j < 160; j += 2) { + Wih = W[j] + Wil = W[j + 1] + + var majh = maj(ah, bh, ch) + var majl = maj(al, bl, cl) + + var sigma0h = sigma0(ah, al) + var sigma0l = sigma0(al, ah) + var sigma1h = sigma1(eh, el) + var sigma1l = sigma1(el, eh) + + // t1 = h + sigma1 + ch + K[j] + W[j] + var Kih = K[j] + var Kil = K[j + 1] + + var chh = Ch(eh, fh, gh) + var chl = Ch(el, fl, gl) + + var t1l = (hl + sigma1l) | 0 + var t1h = (hh + sigma1h + getCarry(t1l, hl)) | 0 + t1l = (t1l + chl) | 0 + t1h = (t1h + chh + getCarry(t1l, chl)) | 0 + t1l = (t1l + Kil) | 0 + t1h = (t1h + Kih + getCarry(t1l, Kil)) | 0 + t1l = (t1l + Wil) | 0 + t1h = (t1h + Wih + getCarry(t1l, Wil)) | 0 + + // t2 = sigma0 + maj + var t2l = (sigma0l + majl) | 0 + var t2h = (sigma0h + majh + getCarry(t2l, sigma0l)) | 0 + + hh = gh + hl = gl + gh = fh + gl = fl + fh = eh + fl = el + el = (dl + t1l) | 0 + eh = (dh + t1h + getCarry(el, dl)) | 0 + dh = ch + dl = cl + ch = bh + cl = bl + bh = ah + bl = al + al = (t1l + t2l) | 0 + ah = (t1h + t2h + getCarry(al, t1l)) | 0 + } + + this._al = (this._al + al) | 0 + this._bl = (this._bl + bl) | 0 + this._cl = (this._cl + cl) | 0 + this._dl = (this._dl + dl) | 0 + this._el = (this._el + el) | 0 + this._fl = (this._fl + fl) | 0 + this._gl = (this._gl + gl) | 0 + this._hl = (this._hl + hl) | 0 + + this._ah = (this._ah + ah + getCarry(this._al, al)) | 0 + this._bh = (this._bh + bh + getCarry(this._bl, bl)) | 0 + this._ch = (this._ch + ch + getCarry(this._cl, cl)) | 0 + this._dh = (this._dh + dh + getCarry(this._dl, dl)) | 0 + this._eh = (this._eh + eh + getCarry(this._el, el)) | 0 + this._fh = (this._fh + fh + getCarry(this._fl, fl)) | 0 + this._gh = (this._gh + gh + getCarry(this._gl, gl)) | 0 + this._hh = (this._hh + hh + getCarry(this._hl, hl)) | 0 +} + +Sha512.prototype._hash = function () { + var H = new Buffer(64) + + function writeInt64BE (h, l, offset) { + H.writeInt32BE(h, offset) + H.writeInt32BE(l, offset + 4) + } + + writeInt64BE(this._ah, this._al, 0) + writeInt64BE(this._bh, this._bl, 8) + writeInt64BE(this._ch, this._cl, 16) + writeInt64BE(this._dh, this._dl, 24) + writeInt64BE(this._eh, this._el, 32) + writeInt64BE(this._fh, this._fl, 40) + writeInt64BE(this._gh, this._gl, 48) + writeInt64BE(this._hh, this._hl, 56) + + return H +} + +module.exports = Sha512 + +}).call(this,require("buffer").Buffer) +},{"./hash":15,"buffer":69,"inherits":17}],24:[function(require,module,exports){ +var asn1 = exports; + +asn1.bignum = require('bn.js'); + +asn1.define = require('./asn1/api').define; +asn1.base = require('./asn1/base'); +asn1.constants = require('./asn1/constants'); +asn1.decoders = require('./asn1/decoders'); +asn1.encoders = require('./asn1/encoders'); + +},{"./asn1/api":25,"./asn1/base":27,"./asn1/constants":31,"./asn1/decoders":33,"./asn1/encoders":36,"bn.js":40}],25:[function(require,module,exports){ +var asn1 = require('../asn1'); +var inherits = require('inherits'); + +var api = exports; + +api.define = function define(name, body) { + return new Entity(name, body); +}; + +function Entity(name, body) { + this.name = name; + this.body = body; + + this.decoders = {}; + this.encoders = {}; +}; + +Entity.prototype._createNamed = function createNamed(base) { + var named; + try { + named = require('vm').runInThisContext( + '(function ' + this.name + '(entity) {\n' + + ' this._initNamed(entity);\n' + + '})' + ); + } catch (e) { + named = function (entity) { + this._initNamed(entity); + }; + } + inherits(named, base); + named.prototype._initNamed = function initnamed(entity) { + base.call(this, entity); + }; + + return new named(this); +}; + +Entity.prototype._getDecoder = function _getDecoder(enc) { + enc = enc || 'der'; + // Lazily create decoder + if (!this.decoders.hasOwnProperty(enc)) + this.decoders[enc] = this._createNamed(asn1.decoders[enc]); + return this.decoders[enc]; +}; + +Entity.prototype.decode = function decode(data, enc, options) { + return this._getDecoder(enc).decode(data, options); +}; + +Entity.prototype._getEncoder = function _getEncoder(enc) { + enc = enc || 'der'; + // Lazily create encoder + if (!this.encoders.hasOwnProperty(enc)) + this.encoders[enc] = this._createNamed(asn1.encoders[enc]); + return this.encoders[enc]; +}; + +Entity.prototype.encode = function encode(data, enc, /* internal */ reporter) { + return this._getEncoder(enc).encode(data, reporter); +}; + +},{"../asn1":24,"inherits":123,"vm":177}],26:[function(require,module,exports){ +var inherits = require('inherits'); +var Reporter = require('../base').Reporter; +var Buffer = require('buffer').Buffer; + +function DecoderBuffer(base, options) { + Reporter.call(this, options); + if (!Buffer.isBuffer(base)) { + this.error('Input not Buffer'); + return; + } + + this.base = base; + this.offset = 0; + this.length = base.length; +} +inherits(DecoderBuffer, Reporter); +exports.DecoderBuffer = DecoderBuffer; + +DecoderBuffer.prototype.save = function save() { + return { offset: this.offset, reporter: Reporter.prototype.save.call(this) }; +}; + +DecoderBuffer.prototype.restore = function restore(save) { + // Return skipped data + var res = new DecoderBuffer(this.base); + res.offset = save.offset; + res.length = this.offset; + + this.offset = save.offset; + Reporter.prototype.restore.call(this, save.reporter); + + return res; +}; + +DecoderBuffer.prototype.isEmpty = function isEmpty() { + return this.offset === this.length; +}; + +DecoderBuffer.prototype.readUInt8 = function readUInt8(fail) { + if (this.offset + 1 <= this.length) + return this.base.readUInt8(this.offset++, true); + else + return this.error(fail || 'DecoderBuffer overrun'); +} + +DecoderBuffer.prototype.skip = function skip(bytes, fail) { + if (!(this.offset + bytes <= this.length)) + return this.error(fail || 'DecoderBuffer overrun'); + + var res = new DecoderBuffer(this.base); + + // Share reporter state + res._reporterState = this._reporterState; + + res.offset = this.offset; + res.length = this.offset + bytes; + this.offset += bytes; + return res; +} + +DecoderBuffer.prototype.raw = function raw(save) { + return this.base.slice(save ? save.offset : this.offset, this.length); +} + +function EncoderBuffer(value, reporter) { + if (Array.isArray(value)) { + this.length = 0; + this.value = value.map(function(item) { + if (!(item instanceof EncoderBuffer)) + item = new EncoderBuffer(item, reporter); + this.length += item.length; + return item; + }, this); + } else if (typeof value === 'number') { + if (!(0 <= value && value <= 0xff)) + return reporter.error('non-byte EncoderBuffer value'); + this.value = value; + this.length = 1; + } else if (typeof value === 'string') { + this.value = value; + this.length = Buffer.byteLength(value); + } else if (Buffer.isBuffer(value)) { + this.value = value; + this.length = value.length; + } else { + return reporter.error('Unsupported type: ' + typeof value); + } +} +exports.EncoderBuffer = EncoderBuffer; + +EncoderBuffer.prototype.join = function join(out, offset) { + if (!out) + out = new Buffer(this.length); + if (!offset) + offset = 0; + + if (this.length === 0) + return out; + + if (Array.isArray(this.value)) { + this.value.forEach(function(item) { + item.join(out, offset); + offset += item.length; + }); + } else { + if (typeof this.value === 'number') + out[offset] = this.value; + else if (typeof this.value === 'string') + out.write(this.value, offset); + else if (Buffer.isBuffer(this.value)) + this.value.copy(out, offset); + offset += this.length; + } + + return out; +}; + +},{"../base":27,"buffer":69,"inherits":123}],27:[function(require,module,exports){ +var base = exports; + +base.Reporter = require('./reporter').Reporter; +base.DecoderBuffer = require('./buffer').DecoderBuffer; +base.EncoderBuffer = require('./buffer').EncoderBuffer; +base.Node = require('./node'); + +},{"./buffer":26,"./node":28,"./reporter":29}],28:[function(require,module,exports){ +var Reporter = require('../base').Reporter; +var EncoderBuffer = require('../base').EncoderBuffer; +var DecoderBuffer = require('../base').DecoderBuffer; +var assert = require('minimalistic-assert'); + +// Supported tags +var tags = [ + 'seq', 'seqof', 'set', 'setof', 'objid', 'bool', + 'gentime', 'utctime', 'null_', 'enum', 'int', 'objDesc', + 'bitstr', 'bmpstr', 'charstr', 'genstr', 'graphstr', 'ia5str', 'iso646str', + 'numstr', 'octstr', 'printstr', 't61str', 'unistr', 'utf8str', 'videostr' +]; + +// Public methods list +var methods = [ + 'key', 'obj', 'use', 'optional', 'explicit', 'implicit', 'def', 'choice', + 'any', 'contains' +].concat(tags); + +// Overrided methods list +var overrided = [ + '_peekTag', '_decodeTag', '_use', + '_decodeStr', '_decodeObjid', '_decodeTime', + '_decodeNull', '_decodeInt', '_decodeBool', '_decodeList', + + '_encodeComposite', '_encodeStr', '_encodeObjid', '_encodeTime', + '_encodeNull', '_encodeInt', '_encodeBool' +]; + +function Node(enc, parent) { + var state = {}; + this._baseState = state; + + state.enc = enc; + + state.parent = parent || null; + state.children = null; + + // State + state.tag = null; + state.args = null; + state.reverseArgs = null; + state.choice = null; + state.optional = false; + state.any = false; + state.obj = false; + state.use = null; + state.useDecoder = null; + state.key = null; + state['default'] = null; + state.explicit = null; + state.implicit = null; + state.contains = null; + + // Should create new instance on each method + if (!state.parent) { + state.children = []; + this._wrap(); + } +} +module.exports = Node; + +var stateProps = [ + 'enc', 'parent', 'children', 'tag', 'args', 'reverseArgs', 'choice', + 'optional', 'any', 'obj', 'use', 'alteredUse', 'key', 'default', 'explicit', + 'implicit', 'contains' +]; + +Node.prototype.clone = function clone() { + var state = this._baseState; + var cstate = {}; + stateProps.forEach(function(prop) { + cstate[prop] = state[prop]; + }); + var res = new this.constructor(cstate.parent); + res._baseState = cstate; + return res; +}; + +Node.prototype._wrap = function wrap() { + var state = this._baseState; + methods.forEach(function(method) { + this[method] = function _wrappedMethod() { + var clone = new this.constructor(this); + state.children.push(clone); + return clone[method].apply(clone, arguments); + }; + }, this); +}; + +Node.prototype._init = function init(body) { + var state = this._baseState; + + assert(state.parent === null); + body.call(this); + + // Filter children + state.children = state.children.filter(function(child) { + return child._baseState.parent === this; + }, this); + assert.equal(state.children.length, 1, 'Root node can have only one child'); +}; + +Node.prototype._useArgs = function useArgs(args) { + var state = this._baseState; + + // Filter children and args + var children = args.filter(function(arg) { + return arg instanceof this.constructor; + }, this); + args = args.filter(function(arg) { + return !(arg instanceof this.constructor); + }, this); + + if (children.length !== 0) { + assert(state.children === null); + state.children = children; + + // Replace parent to maintain backward link + children.forEach(function(child) { + child._baseState.parent = this; + }, this); + } + if (args.length !== 0) { + assert(state.args === null); + state.args = args; + state.reverseArgs = args.map(function(arg) { + if (typeof arg !== 'object' || arg.constructor !== Object) + return arg; + + var res = {}; + Object.keys(arg).forEach(function(key) { + if (key == (key | 0)) + key |= 0; + var value = arg[key]; + res[value] = key; + }); + return res; + }); + } +}; + +// +// Overrided methods +// + +overrided.forEach(function(method) { + Node.prototype[method] = function _overrided() { + var state = this._baseState; + throw new Error(method + ' not implemented for encoding: ' + state.enc); + }; +}); + +// +// Public methods +// + +tags.forEach(function(tag) { + Node.prototype[tag] = function _tagMethod() { + var state = this._baseState; + var args = Array.prototype.slice.call(arguments); + + assert(state.tag === null); + state.tag = tag; + + this._useArgs(args); + + return this; + }; +}); + +Node.prototype.use = function use(item) { + assert(item); + var state = this._baseState; + + assert(state.use === null); + state.use = item; + + return this; +}; + +Node.prototype.optional = function optional() { + var state = this._baseState; + + state.optional = true; + + return this; +}; + +Node.prototype.def = function def(val) { + var state = this._baseState; + + assert(state['default'] === null); + state['default'] = val; + state.optional = true; + + return this; +}; + +Node.prototype.explicit = function explicit(num) { + var state = this._baseState; + + assert(state.explicit === null && state.implicit === null); + state.explicit = num; + + return this; +}; + +Node.prototype.implicit = function implicit(num) { + var state = this._baseState; + + assert(state.explicit === null && state.implicit === null); + state.implicit = num; + + return this; +}; + +Node.prototype.obj = function obj() { + var state = this._baseState; + var args = Array.prototype.slice.call(arguments); + + state.obj = true; + + if (args.length !== 0) + this._useArgs(args); + + return this; +}; + +Node.prototype.key = function key(newKey) { + var state = this._baseState; + + assert(state.key === null); + state.key = newKey; + + return this; +}; + +Node.prototype.any = function any() { + var state = this._baseState; + + state.any = true; + + return this; +}; + +Node.prototype.choice = function choice(obj) { + var state = this._baseState; + + assert(state.choice === null); + state.choice = obj; + this._useArgs(Object.keys(obj).map(function(key) { + return obj[key]; + })); + + return this; +}; + +Node.prototype.contains = function contains(item) { + var state = this._baseState; + + assert(state.use === null); + state.contains = item; + + return this; +}; + +// +// Decoding +// + +Node.prototype._decode = function decode(input, options) { + var state = this._baseState; + + // Decode root node + if (state.parent === null) + return input.wrapResult(state.children[0]._decode(input, options)); + + var result = state['default']; + var present = true; + + var prevKey = null; + if (state.key !== null) + prevKey = input.enterKey(state.key); + + // Check if tag is there + if (state.optional) { + var tag = null; + if (state.explicit !== null) + tag = state.explicit; + else if (state.implicit !== null) + tag = state.implicit; + else if (state.tag !== null) + tag = state.tag; + + if (tag === null && !state.any) { + // Trial and Error + var save = input.save(); + try { + if (state.choice === null) + this._decodeGeneric(state.tag, input, options); + else + this._decodeChoice(input, options); + present = true; + } catch (e) { + present = false; + } + input.restore(save); + } else { + present = this._peekTag(input, tag, state.any); + + if (input.isError(present)) + return present; + } + } + + // Push object on stack + var prevObj; + if (state.obj && present) + prevObj = input.enterObject(); + + if (present) { + // Unwrap explicit values + if (state.explicit !== null) { + var explicit = this._decodeTag(input, state.explicit); + if (input.isError(explicit)) + return explicit; + input = explicit; + } + + var start = input.offset; + + // Unwrap implicit and normal values + if (state.use === null && state.choice === null) { + if (state.any) + var save = input.save(); + var body = this._decodeTag( + input, + state.implicit !== null ? state.implicit : state.tag, + state.any + ); + if (input.isError(body)) + return body; + + if (state.any) + result = input.raw(save); + else + input = body; + } + + if (options && options.track && state.tag !== null) + options.track(input.path(), start, input.length, 'tagged'); + + if (options && options.track && state.tag !== null) + options.track(input.path(), input.offset, input.length, 'content'); + + // Select proper method for tag + if (state.any) + result = result; + else if (state.choice === null) + result = this._decodeGeneric(state.tag, input, options); + else + result = this._decodeChoice(input, options); + + if (input.isError(result)) + return result; + + // Decode children + if (!state.any && state.choice === null && state.children !== null) { + state.children.forEach(function decodeChildren(child) { + // NOTE: We are ignoring errors here, to let parser continue with other + // parts of encoded data + child._decode(input, options); + }); + } + + // Decode contained/encoded by schema, only in bit or octet strings + if (state.contains && (state.tag === 'octstr' || state.tag === 'bitstr')) { + var data = new DecoderBuffer(result); + result = this._getUse(state.contains, input._reporterState.obj) + ._decode(data, options); + } + } + + // Pop object + if (state.obj && present) + result = input.leaveObject(prevObj); + + // Set key + if (state.key !== null && (result !== null || present === true)) + input.leaveKey(prevKey, state.key, result); + else if (prevKey !== null) + input.exitKey(prevKey); + + return result; +}; + +Node.prototype._decodeGeneric = function decodeGeneric(tag, input, options) { + var state = this._baseState; + + if (tag === 'seq' || tag === 'set') + return null; + if (tag === 'seqof' || tag === 'setof') + return this._decodeList(input, tag, state.args[0], options); + else if (/str$/.test(tag)) + return this._decodeStr(input, tag, options); + else if (tag === 'objid' && state.args) + return this._decodeObjid(input, state.args[0], state.args[1], options); + else if (tag === 'objid') + return this._decodeObjid(input, null, null, options); + else if (tag === 'gentime' || tag === 'utctime') + return this._decodeTime(input, tag, options); + else if (tag === 'null_') + return this._decodeNull(input, options); + else if (tag === 'bool') + return this._decodeBool(input, options); + else if (tag === 'objDesc') + return this._decodeStr(input, tag, options); + else if (tag === 'int' || tag === 'enum') + return this._decodeInt(input, state.args && state.args[0], options); + + if (state.use !== null) { + return this._getUse(state.use, input._reporterState.obj) + ._decode(input, options); + } else { + return input.error('unknown tag: ' + tag); + } +}; + +Node.prototype._getUse = function _getUse(entity, obj) { + + var state = this._baseState; + // Create altered use decoder if implicit is set + state.useDecoder = this._use(entity, obj); + assert(state.useDecoder._baseState.parent === null); + state.useDecoder = state.useDecoder._baseState.children[0]; + if (state.implicit !== state.useDecoder._baseState.implicit) { + state.useDecoder = state.useDecoder.clone(); + state.useDecoder._baseState.implicit = state.implicit; + } + return state.useDecoder; +}; + +Node.prototype._decodeChoice = function decodeChoice(input, options) { + var state = this._baseState; + var result = null; + var match = false; + + Object.keys(state.choice).some(function(key) { + var save = input.save(); + var node = state.choice[key]; + try { + var value = node._decode(input, options); + if (input.isError(value)) + return false; + + result = { type: key, value: value }; + match = true; + } catch (e) { + input.restore(save); + return false; + } + return true; + }, this); + + if (!match) + return input.error('Choice not matched'); + + return result; +}; + +// +// Encoding +// + +Node.prototype._createEncoderBuffer = function createEncoderBuffer(data) { + return new EncoderBuffer(data, this.reporter); +}; + +Node.prototype._encode = function encode(data, reporter, parent) { + var state = this._baseState; + if (state['default'] !== null && state['default'] === data) + return; + + var result = this._encodeValue(data, reporter, parent); + if (result === undefined) + return; + + if (this._skipDefault(result, reporter, parent)) + return; + + return result; +}; + +Node.prototype._encodeValue = function encode(data, reporter, parent) { + var state = this._baseState; + + // Decode root node + if (state.parent === null) + return state.children[0]._encode(data, reporter || new Reporter()); + + var result = null; + + // Set reporter to share it with a child class + this.reporter = reporter; + + // Check if data is there + if (state.optional && data === undefined) { + if (state['default'] !== null) + data = state['default'] + else + return; + } + + // Encode children first + var content = null; + var primitive = false; + if (state.any) { + // Anything that was given is translated to buffer + result = this._createEncoderBuffer(data); + } else if (state.choice) { + result = this._encodeChoice(data, reporter); + } else if (state.contains) { + content = this._getUse(state.contains, parent)._encode(data, reporter); + primitive = true; + } else if (state.children) { + content = state.children.map(function(child) { + if (child._baseState.tag === 'null_') + return child._encode(null, reporter, data); + + if (child._baseState.key === null) + return reporter.error('Child should have a key'); + var prevKey = reporter.enterKey(child._baseState.key); + + if (typeof data !== 'object') + return reporter.error('Child expected, but input is not object'); + + var res = child._encode(data[child._baseState.key], reporter, data); + reporter.leaveKey(prevKey); + + return res; + }, this).filter(function(child) { + return child; + }); + content = this._createEncoderBuffer(content); + } else { + if (state.tag === 'seqof' || state.tag === 'setof') { + // TODO(indutny): this should be thrown on DSL level + if (!(state.args && state.args.length === 1)) + return reporter.error('Too many args for : ' + state.tag); + + if (!Array.isArray(data)) + return reporter.error('seqof/setof, but data is not Array'); + + var child = this.clone(); + child._baseState.implicit = null; + content = this._createEncoderBuffer(data.map(function(item) { + var state = this._baseState; + + return this._getUse(state.args[0], data)._encode(item, reporter); + }, child)); + } else if (state.use !== null) { + result = this._getUse(state.use, parent)._encode(data, reporter); + } else { + content = this._encodePrimitive(state.tag, data); + primitive = true; + } + } + + // Encode data itself + var result; + if (!state.any && state.choice === null) { + var tag = state.implicit !== null ? state.implicit : state.tag; + var cls = state.implicit === null ? 'universal' : 'context'; + + if (tag === null) { + if (state.use === null) + reporter.error('Tag could be ommited only for .use()'); + } else { + if (state.use === null) + result = this._encodeComposite(tag, primitive, cls, content); + } + } + + // Wrap in explicit + if (state.explicit !== null) + result = this._encodeComposite(state.explicit, false, 'context', result); + + return result; +}; + +Node.prototype._encodeChoice = function encodeChoice(data, reporter) { + var state = this._baseState; + + var node = state.choice[data.type]; + if (!node) { + assert( + false, + data.type + ' not found in ' + + JSON.stringify(Object.keys(state.choice))); + } + return node._encode(data.value, reporter); +}; + +Node.prototype._encodePrimitive = function encodePrimitive(tag, data) { + var state = this._baseState; + + if (/str$/.test(tag)) + return this._encodeStr(data, tag); + else if (tag === 'objid' && state.args) + return this._encodeObjid(data, state.reverseArgs[0], state.args[1]); + else if (tag === 'objid') + return this._encodeObjid(data, null, null); + else if (tag === 'gentime' || tag === 'utctime') + return this._encodeTime(data, tag); + else if (tag === 'null_') + return this._encodeNull(); + else if (tag === 'int' || tag === 'enum') + return this._encodeInt(data, state.args && state.reverseArgs[0]); + else if (tag === 'bool') + return this._encodeBool(data); + else if (tag === 'objDesc') + return this._encodeStr(data, tag); + else + throw new Error('Unsupported tag: ' + tag); +}; + +Node.prototype._isNumstr = function isNumstr(str) { + return /^[0-9 ]*$/.test(str); +}; + +Node.prototype._isPrintstr = function isPrintstr(str) { + return /^[A-Za-z0-9 '\(\)\+,\-\.\/:=\?]*$/.test(str); +}; + +},{"../base":27,"minimalistic-assert":127}],29:[function(require,module,exports){ +var inherits = require('inherits'); + +function Reporter(options) { + this._reporterState = { + obj: null, + path: [], + options: options || {}, + errors: [] + }; +} +exports.Reporter = Reporter; + +Reporter.prototype.isError = function isError(obj) { + return obj instanceof ReporterError; +}; + +Reporter.prototype.save = function save() { + var state = this._reporterState; + + return { obj: state.obj, pathLen: state.path.length }; +}; + +Reporter.prototype.restore = function restore(data) { + var state = this._reporterState; + + state.obj = data.obj; + state.path = state.path.slice(0, data.pathLen); +}; + +Reporter.prototype.enterKey = function enterKey(key) { + return this._reporterState.path.push(key); +}; + +Reporter.prototype.exitKey = function exitKey(index) { + var state = this._reporterState; + + state.path = state.path.slice(0, index - 1); +}; + +Reporter.prototype.leaveKey = function leaveKey(index, key, value) { + var state = this._reporterState; + + this.exitKey(index); + if (state.obj !== null) + state.obj[key] = value; +}; + +Reporter.prototype.path = function path() { + return this._reporterState.path.join('/'); +}; + +Reporter.prototype.enterObject = function enterObject() { + var state = this._reporterState; + + var prev = state.obj; + state.obj = {}; + return prev; +}; + +Reporter.prototype.leaveObject = function leaveObject(prev) { + var state = this._reporterState; + + var now = state.obj; + state.obj = prev; + return now; +}; + +Reporter.prototype.error = function error(msg) { + var err; + var state = this._reporterState; + + var inherited = msg instanceof ReporterError; + if (inherited) { + err = msg; + } else { + err = new ReporterError(state.path.map(function(elem) { + return '[' + JSON.stringify(elem) + ']'; + }).join(''), msg.message || msg, msg.stack); + } + + if (!state.options.partial) + throw err; + + if (!inherited) + state.errors.push(err); + + return err; +}; + +Reporter.prototype.wrapResult = function wrapResult(result) { + var state = this._reporterState; + if (!state.options.partial) + return result; + + return { + result: this.isError(result) ? null : result, + errors: state.errors + }; +}; + +function ReporterError(path, msg) { + this.path = path; + this.rethrow(msg); +}; +inherits(ReporterError, Error); + +ReporterError.prototype.rethrow = function rethrow(msg) { + this.message = msg + ' at: ' + (this.path || '(shallow)'); + if (Error.captureStackTrace) + Error.captureStackTrace(this, ReporterError); + + if (!this.stack) { + try { + // IE only adds stack when thrown + throw new Error(this.message); + } catch (e) { + this.stack = e.stack; + } + } + return this; +}; + +},{"inherits":123}],30:[function(require,module,exports){ +var constants = require('../constants'); + +exports.tagClass = { + 0: 'universal', + 1: 'application', + 2: 'context', + 3: 'private' +}; +exports.tagClassByName = constants._reverse(exports.tagClass); + +exports.tag = { + 0x00: 'end', + 0x01: 'bool', + 0x02: 'int', + 0x03: 'bitstr', + 0x04: 'octstr', + 0x05: 'null_', + 0x06: 'objid', + 0x07: 'objDesc', + 0x08: 'external', + 0x09: 'real', + 0x0a: 'enum', + 0x0b: 'embed', + 0x0c: 'utf8str', + 0x0d: 'relativeOid', + 0x10: 'seq', + 0x11: 'set', + 0x12: 'numstr', + 0x13: 'printstr', + 0x14: 't61str', + 0x15: 'videostr', + 0x16: 'ia5str', + 0x17: 'utctime', + 0x18: 'gentime', + 0x19: 'graphstr', + 0x1a: 'iso646str', + 0x1b: 'genstr', + 0x1c: 'unistr', + 0x1d: 'charstr', + 0x1e: 'bmpstr' +}; +exports.tagByName = constants._reverse(exports.tag); + +},{"../constants":31}],31:[function(require,module,exports){ +var constants = exports; + +// Helper +constants._reverse = function reverse(map) { + var res = {}; + + Object.keys(map).forEach(function(key) { + // Convert key to integer if it is stringified + if ((key | 0) == key) + key = key | 0; + + var value = map[key]; + res[value] = key; + }); + + return res; +}; + +constants.der = require('./der'); + +},{"./der":30}],32:[function(require,module,exports){ +var inherits = require('inherits'); + +var asn1 = require('../../asn1'); +var base = asn1.base; +var bignum = asn1.bignum; + +// Import DER constants +var der = asn1.constants.der; + +function DERDecoder(entity) { + this.enc = 'der'; + this.name = entity.name; + this.entity = entity; + + // Construct base tree + this.tree = new DERNode(); + this.tree._init(entity.body); +}; +module.exports = DERDecoder; + +DERDecoder.prototype.decode = function decode(data, options) { + if (!(data instanceof base.DecoderBuffer)) + data = new base.DecoderBuffer(data, options); + + return this.tree._decode(data, options); +}; + +// Tree methods + +function DERNode(parent) { + base.Node.call(this, 'der', parent); +} +inherits(DERNode, base.Node); + +DERNode.prototype._peekTag = function peekTag(buffer, tag, any) { + if (buffer.isEmpty()) + return false; + + var state = buffer.save(); + var decodedTag = derDecodeTag(buffer, 'Failed to peek tag: "' + tag + '"'); + if (buffer.isError(decodedTag)) + return decodedTag; + + buffer.restore(state); + + return decodedTag.tag === tag || decodedTag.tagStr === tag || + (decodedTag.tagStr + 'of') === tag || any; +}; + +DERNode.prototype._decodeTag = function decodeTag(buffer, tag, any) { + var decodedTag = derDecodeTag(buffer, + 'Failed to decode tag of "' + tag + '"'); + if (buffer.isError(decodedTag)) + return decodedTag; + + var len = derDecodeLen(buffer, + decodedTag.primitive, + 'Failed to get length of "' + tag + '"'); + + // Failure + if (buffer.isError(len)) + return len; + + if (!any && + decodedTag.tag !== tag && + decodedTag.tagStr !== tag && + decodedTag.tagStr + 'of' !== tag) { + return buffer.error('Failed to match tag: "' + tag + '"'); + } + + if (decodedTag.primitive || len !== null) + return buffer.skip(len, 'Failed to match body of: "' + tag + '"'); + + // Indefinite length... find END tag + var state = buffer.save(); + var res = this._skipUntilEnd( + buffer, + 'Failed to skip indefinite length body: "' + this.tag + '"'); + if (buffer.isError(res)) + return res; + + len = buffer.offset - state.offset; + buffer.restore(state); + return buffer.skip(len, 'Failed to match body of: "' + tag + '"'); +}; + +DERNode.prototype._skipUntilEnd = function skipUntilEnd(buffer, fail) { + while (true) { + var tag = derDecodeTag(buffer, fail); + if (buffer.isError(tag)) + return tag; + var len = derDecodeLen(buffer, tag.primitive, fail); + if (buffer.isError(len)) + return len; + + var res; + if (tag.primitive || len !== null) + res = buffer.skip(len) + else + res = this._skipUntilEnd(buffer, fail); + + // Failure + if (buffer.isError(res)) + return res; + + if (tag.tagStr === 'end') + break; + } +}; + +DERNode.prototype._decodeList = function decodeList(buffer, tag, decoder, + options) { + var result = []; + while (!buffer.isEmpty()) { + var possibleEnd = this._peekTag(buffer, 'end'); + if (buffer.isError(possibleEnd)) + return possibleEnd; + + var res = decoder.decode(buffer, 'der', options); + if (buffer.isError(res) && possibleEnd) + break; + result.push(res); + } + return result; +}; + +DERNode.prototype._decodeStr = function decodeStr(buffer, tag) { + if (tag === 'bitstr') { + var unused = buffer.readUInt8(); + if (buffer.isError(unused)) + return unused; + return { unused: unused, data: buffer.raw() }; + } else if (tag === 'bmpstr') { + var raw = buffer.raw(); + if (raw.length % 2 === 1) + return buffer.error('Decoding of string type: bmpstr length mismatch'); + + var str = ''; + for (var i = 0; i < raw.length / 2; i++) { + str += String.fromCharCode(raw.readUInt16BE(i * 2)); + } + return str; + } else if (tag === 'numstr') { + var numstr = buffer.raw().toString('ascii'); + if (!this._isNumstr(numstr)) { + return buffer.error('Decoding of string type: ' + + 'numstr unsupported characters'); + } + return numstr; + } else if (tag === 'octstr') { + return buffer.raw(); + } else if (tag === 'objDesc') { + return buffer.raw(); + } else if (tag === 'printstr') { + var printstr = buffer.raw().toString('ascii'); + if (!this._isPrintstr(printstr)) { + return buffer.error('Decoding of string type: ' + + 'printstr unsupported characters'); + } + return printstr; + } else if (/str$/.test(tag)) { + return buffer.raw().toString(); + } else { + return buffer.error('Decoding of string type: ' + tag + ' unsupported'); + } +}; + +DERNode.prototype._decodeObjid = function decodeObjid(buffer, values, relative) { + var result; + var identifiers = []; + var ident = 0; + while (!buffer.isEmpty()) { + var subident = buffer.readUInt8(); + ident <<= 7; + ident |= subident & 0x7f; + if ((subident & 0x80) === 0) { + identifiers.push(ident); + ident = 0; + } + } + if (subident & 0x80) + identifiers.push(ident); + + var first = (identifiers[0] / 40) | 0; + var second = identifiers[0] % 40; + + if (relative) + result = identifiers; + else + result = [first, second].concat(identifiers.slice(1)); + + if (values) { + var tmp = values[result.join(' ')]; + if (tmp === undefined) + tmp = values[result.join('.')]; + if (tmp !== undefined) + result = tmp; + } + + return result; +}; + +DERNode.prototype._decodeTime = function decodeTime(buffer, tag) { + var str = buffer.raw().toString(); + if (tag === 'gentime') { + var year = str.slice(0, 4) | 0; + var mon = str.slice(4, 6) | 0; + var day = str.slice(6, 8) | 0; + var hour = str.slice(8, 10) | 0; + var min = str.slice(10, 12) | 0; + var sec = str.slice(12, 14) | 0; + } else if (tag === 'utctime') { + var year = str.slice(0, 2) | 0; + var mon = str.slice(2, 4) | 0; + var day = str.slice(4, 6) | 0; + var hour = str.slice(6, 8) | 0; + var min = str.slice(8, 10) | 0; + var sec = str.slice(10, 12) | 0; + if (year < 70) + year = 2000 + year; + else + year = 1900 + year; + } else { + return buffer.error('Decoding ' + tag + ' time is not supported yet'); + } + + return Date.UTC(year, mon - 1, day, hour, min, sec, 0); +}; + +DERNode.prototype._decodeNull = function decodeNull(buffer) { + return null; +}; + +DERNode.prototype._decodeBool = function decodeBool(buffer) { + var res = buffer.readUInt8(); + if (buffer.isError(res)) + return res; + else + return res !== 0; +}; + +DERNode.prototype._decodeInt = function decodeInt(buffer, values) { + // Bigint, return as it is (assume big endian) + var raw = buffer.raw(); + var res = new bignum(raw); + + if (values) + res = values[res.toString(10)] || res; + + return res; +}; + +DERNode.prototype._use = function use(entity, obj) { + if (typeof entity === 'function') + entity = entity(obj); + return entity._getDecoder('der').tree; +}; + +// Utility methods + +function derDecodeTag(buf, fail) { + var tag = buf.readUInt8(fail); + if (buf.isError(tag)) + return tag; + + var cls = der.tagClass[tag >> 6]; + var primitive = (tag & 0x20) === 0; + + // Multi-octet tag - load + if ((tag & 0x1f) === 0x1f) { + var oct = tag; + tag = 0; + while ((oct & 0x80) === 0x80) { + oct = buf.readUInt8(fail); + if (buf.isError(oct)) + return oct; + + tag <<= 7; + tag |= oct & 0x7f; + } + } else { + tag &= 0x1f; + } + var tagStr = der.tag[tag]; + + return { + cls: cls, + primitive: primitive, + tag: tag, + tagStr: tagStr + }; +} + +function derDecodeLen(buf, primitive, fail) { + var len = buf.readUInt8(fail); + if (buf.isError(len)) + return len; + + // Indefinite form + if (!primitive && len === 0x80) + return null; + + // Definite form + if ((len & 0x80) === 0) { + // Short form + return len; + } + + // Long form + var num = len & 0x7f; + if (num > 4) + return buf.error('length octect is too long'); + + len = 0; + for (var i = 0; i < num; i++) { + len <<= 8; + var j = buf.readUInt8(fail); + if (buf.isError(j)) + return j; + len |= j; + } + + return len; +} + +},{"../../asn1":24,"inherits":123}],33:[function(require,module,exports){ +var decoders = exports; + +decoders.der = require('./der'); +decoders.pem = require('./pem'); + +},{"./der":32,"./pem":34}],34:[function(require,module,exports){ +var inherits = require('inherits'); +var Buffer = require('buffer').Buffer; + +var DERDecoder = require('./der'); + +function PEMDecoder(entity) { + DERDecoder.call(this, entity); + this.enc = 'pem'; +}; +inherits(PEMDecoder, DERDecoder); +module.exports = PEMDecoder; + +PEMDecoder.prototype.decode = function decode(data, options) { + var lines = data.toString().split(/[\r\n]+/g); + + var label = options.label.toUpperCase(); + + var re = /^-----(BEGIN|END) ([^-]+)-----$/; + var start = -1; + var end = -1; + for (var i = 0; i < lines.length; i++) { + var match = lines[i].match(re); + if (match === null) + continue; + + if (match[2] !== label) + continue; + + if (start === -1) { + if (match[1] !== 'BEGIN') + break; + start = i; + } else { + if (match[1] !== 'END') + break; + end = i; + break; + } + } + if (start === -1 || end === -1) + throw new Error('PEM section not found for: ' + label); + + var base64 = lines.slice(start + 1, end).join(''); + // Remove excessive symbols + base64.replace(/[^a-z0-9\+\/=]+/gi, ''); + + var input = new Buffer(base64, 'base64'); + return DERDecoder.prototype.decode.call(this, input, options); +}; + +},{"./der":32,"buffer":69,"inherits":123}],35:[function(require,module,exports){ +var inherits = require('inherits'); +var Buffer = require('buffer').Buffer; + +var asn1 = require('../../asn1'); +var base = asn1.base; + +// Import DER constants +var der = asn1.constants.der; + +function DEREncoder(entity) { + this.enc = 'der'; + this.name = entity.name; + this.entity = entity; + + // Construct base tree + this.tree = new DERNode(); + this.tree._init(entity.body); +}; +module.exports = DEREncoder; + +DEREncoder.prototype.encode = function encode(data, reporter) { + return this.tree._encode(data, reporter).join(); +}; + +// Tree methods + +function DERNode(parent) { + base.Node.call(this, 'der', parent); +} +inherits(DERNode, base.Node); + +DERNode.prototype._encodeComposite = function encodeComposite(tag, + primitive, + cls, + content) { + var encodedTag = encodeTag(tag, primitive, cls, this.reporter); + + // Short form + if (content.length < 0x80) { + var header = new Buffer(2); + header[0] = encodedTag; + header[1] = content.length; + return this._createEncoderBuffer([ header, content ]); + } + + // Long form + // Count octets required to store length + var lenOctets = 1; + for (var i = content.length; i >= 0x100; i >>= 8) + lenOctets++; + + var header = new Buffer(1 + 1 + lenOctets); + header[0] = encodedTag; + header[1] = 0x80 | lenOctets; + + for (var i = 1 + lenOctets, j = content.length; j > 0; i--, j >>= 8) + header[i] = j & 0xff; + + return this._createEncoderBuffer([ header, content ]); +}; + +DERNode.prototype._encodeStr = function encodeStr(str, tag) { + if (tag === 'bitstr') { + return this._createEncoderBuffer([ str.unused | 0, str.data ]); + } else if (tag === 'bmpstr') { + var buf = new Buffer(str.length * 2); + for (var i = 0; i < str.length; i++) { + buf.writeUInt16BE(str.charCodeAt(i), i * 2); + } + return this._createEncoderBuffer(buf); + } else if (tag === 'numstr') { + if (!this._isNumstr(str)) { + return this.reporter.error('Encoding of string type: numstr supports ' + + 'only digits and space'); + } + return this._createEncoderBuffer(str); + } else if (tag === 'printstr') { + if (!this._isPrintstr(str)) { + return this.reporter.error('Encoding of string type: printstr supports ' + + 'only latin upper and lower case letters, ' + + 'digits, space, apostrophe, left and rigth ' + + 'parenthesis, plus sign, comma, hyphen, ' + + 'dot, slash, colon, equal sign, ' + + 'question mark'); + } + return this._createEncoderBuffer(str); + } else if (/str$/.test(tag)) { + return this._createEncoderBuffer(str); + } else if (tag === 'objDesc') { + return this._createEncoderBuffer(str); + } else { + return this.reporter.error('Encoding of string type: ' + tag + + ' unsupported'); + } +}; + +DERNode.prototype._encodeObjid = function encodeObjid(id, values, relative) { + if (typeof id === 'string') { + if (!values) + return this.reporter.error('string objid given, but no values map found'); + if (!values.hasOwnProperty(id)) + return this.reporter.error('objid not found in values map'); + id = values[id].split(/[\s\.]+/g); + for (var i = 0; i < id.length; i++) + id[i] |= 0; + } else if (Array.isArray(id)) { + id = id.slice(); + for (var i = 0; i < id.length; i++) + id[i] |= 0; + } + + if (!Array.isArray(id)) { + return this.reporter.error('objid() should be either array or string, ' + + 'got: ' + JSON.stringify(id)); + } + + if (!relative) { + if (id[1] >= 40) + return this.reporter.error('Second objid identifier OOB'); + id.splice(0, 2, id[0] * 40 + id[1]); + } + + // Count number of octets + var size = 0; + for (var i = 0; i < id.length; i++) { + var ident = id[i]; + for (size++; ident >= 0x80; ident >>= 7) + size++; + } + + var objid = new Buffer(size); + var offset = objid.length - 1; + for (var i = id.length - 1; i >= 0; i--) { + var ident = id[i]; + objid[offset--] = ident & 0x7f; + while ((ident >>= 7) > 0) + objid[offset--] = 0x80 | (ident & 0x7f); + } + + return this._createEncoderBuffer(objid); +}; + +function two(num) { + if (num < 10) + return '0' + num; + else + return num; +} + +DERNode.prototype._encodeTime = function encodeTime(time, tag) { + var str; + var date = new Date(time); + + if (tag === 'gentime') { + str = [ + two(date.getFullYear()), + two(date.getUTCMonth() + 1), + two(date.getUTCDate()), + two(date.getUTCHours()), + two(date.getUTCMinutes()), + two(date.getUTCSeconds()), + 'Z' + ].join(''); + } else if (tag === 'utctime') { + str = [ + two(date.getFullYear() % 100), + two(date.getUTCMonth() + 1), + two(date.getUTCDate()), + two(date.getUTCHours()), + two(date.getUTCMinutes()), + two(date.getUTCSeconds()), + 'Z' + ].join(''); + } else { + this.reporter.error('Encoding ' + tag + ' time is not supported yet'); + } + + return this._encodeStr(str, 'octstr'); +}; + +DERNode.prototype._encodeNull = function encodeNull() { + return this._createEncoderBuffer(''); +}; + +DERNode.prototype._encodeInt = function encodeInt(num, values) { + if (typeof num === 'string') { + if (!values) + return this.reporter.error('String int or enum given, but no values map'); + if (!values.hasOwnProperty(num)) { + return this.reporter.error('Values map doesn\'t contain: ' + + JSON.stringify(num)); + } + num = values[num]; + } + + // Bignum, assume big endian + if (typeof num !== 'number' && !Buffer.isBuffer(num)) { + var numArray = num.toArray(); + if (!num.sign && numArray[0] & 0x80) { + numArray.unshift(0); + } + num = new Buffer(numArray); + } + + if (Buffer.isBuffer(num)) { + var size = num.length; + if (num.length === 0) + size++; + + var out = new Buffer(size); + num.copy(out); + if (num.length === 0) + out[0] = 0 + return this._createEncoderBuffer(out); + } + + if (num < 0x80) + return this._createEncoderBuffer(num); + + if (num < 0x100) + return this._createEncoderBuffer([0, num]); + + var size = 1; + for (var i = num; i >= 0x100; i >>= 8) + size++; + + var out = new Array(size); + for (var i = out.length - 1; i >= 0; i--) { + out[i] = num & 0xff; + num >>= 8; + } + if(out[0] & 0x80) { + out.unshift(0); + } + + return this._createEncoderBuffer(new Buffer(out)); +}; + +DERNode.prototype._encodeBool = function encodeBool(value) { + return this._createEncoderBuffer(value ? 0xff : 0); +}; + +DERNode.prototype._use = function use(entity, obj) { + if (typeof entity === 'function') + entity = entity(obj); + return entity._getEncoder('der').tree; +}; + +DERNode.prototype._skipDefault = function skipDefault(dataBuffer, reporter, parent) { + var state = this._baseState; + var i; + if (state['default'] === null) + return false; + + var data = dataBuffer.join(); + if (state.defaultBuffer === undefined) + state.defaultBuffer = this._encodeValue(state['default'], reporter, parent).join(); + + if (data.length !== state.defaultBuffer.length) + return false; + + for (i=0; i < data.length; i++) + if (data[i] !== state.defaultBuffer[i]) + return false; + + return true; +}; + +// Utility methods + +function encodeTag(tag, primitive, cls, reporter) { + var res; + + if (tag === 'seqof') + tag = 'seq'; + else if (tag === 'setof') + tag = 'set'; + + if (der.tagByName.hasOwnProperty(tag)) + res = der.tagByName[tag]; + else if (typeof tag === 'number' && (tag | 0) === tag) + res = tag; + else + return reporter.error('Unknown tag: ' + tag); + + if (res >= 0x1f) + return reporter.error('Multi-octet tag encoding unsupported'); + + if (!primitive) + res |= 0x20; + + res |= (der.tagClassByName[cls || 'universal'] << 6); + + return res; +} + +},{"../../asn1":24,"buffer":69,"inherits":123}],36:[function(require,module,exports){ +var encoders = exports; + +encoders.der = require('./der'); +encoders.pem = require('./pem'); + +},{"./der":35,"./pem":37}],37:[function(require,module,exports){ +var inherits = require('inherits'); + +var DEREncoder = require('./der'); + +function PEMEncoder(entity) { + DEREncoder.call(this, entity); + this.enc = 'pem'; +}; +inherits(PEMEncoder, DEREncoder); +module.exports = PEMEncoder; + +PEMEncoder.prototype.encode = function encode(data, options) { + var buf = DEREncoder.prototype.encode.call(this, data); + + var p = buf.toString('base64'); + var out = [ '-----BEGIN ' + options.label + '-----' ]; + for (var i = 0; i < p.length; i += 64) + out.push(p.slice(i, i + 64)); + out.push('-----END ' + options.label + '-----'); + return out.join('\n'); +}; + +},{"./der":35,"inherits":123}],38:[function(require,module,exports){ +(function (global){ +'use strict'; + +// compare and isBuffer taken from https://github.com/feross/buffer/blob/680e9e5e488f22aac27599a57dc844a6315928dd/index.js +// original notice: + +/*! + * The buffer module from node.js, for the browser. + * + * @author Feross Aboukhadijeh + * @license MIT + */ +function compare(a, b) { + if (a === b) { + return 0; + } + + var x = a.length; + var y = b.length; + + for (var i = 0, len = Math.min(x, y); i < len; ++i) { + if (a[i] !== b[i]) { + x = a[i]; + y = b[i]; + break; + } + } + + if (x < y) { + return -1; + } + if (y < x) { + return 1; + } + return 0; +} +function isBuffer(b) { + if (global.Buffer && typeof global.Buffer.isBuffer === 'function') { + return global.Buffer.isBuffer(b); + } + return !!(b != null && b._isBuffer); +} + +// based on node assert, original notice: + +// http://wiki.commonjs.org/wiki/Unit_Testing/1.0 +// +// THIS IS NOT TESTED NOR LIKELY TO WORK OUTSIDE V8! +// +// Originally from narwhal.js (http://narwhaljs.org) +// Copyright (c) 2009 Thomas Robinson <280north.com> +// +// Permission is hereby granted, free of charge, to any person obtaining a copy +// of this software and associated documentation files (the 'Software'), to +// deal in the Software without restriction, including without limitation the +// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or +// sell copies of the Software, and to permit persons to whom the Software is +// furnished to do so, subject to the following conditions: +// +// The above copyright notice and this permission notice shall be included in +// all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +// AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN +// ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +var util = require('util/'); +var hasOwn = Object.prototype.hasOwnProperty; +var pSlice = Array.prototype.slice; +var functionsHaveNames = (function () { + return function foo() {}.name === 'foo'; +}()); +function pToString (obj) { + return Object.prototype.toString.call(obj); +} +function isView(arrbuf) { + if (isBuffer(arrbuf)) { + return false; + } + if (typeof global.ArrayBuffer !== 'function') { + return false; + } + if (typeof ArrayBuffer.isView === 'function') { + return ArrayBuffer.isView(arrbuf); + } + if (!arrbuf) { + return false; + } + if (arrbuf instanceof DataView) { + return true; + } + if (arrbuf.buffer && arrbuf.buffer instanceof ArrayBuffer) { + return true; + } + return false; +} +// 1. The assert module provides functions that throw +// AssertionError's when particular conditions are not met. The +// assert module must conform to the following interface. + +var assert = module.exports = ok; + +// 2. The AssertionError is defined in assert. +// new assert.AssertionError({ message: message, +// actual: actual, +// expected: expected }) + +var regex = /\s*function\s+([^\(\s]*)\s*/; +// based on https://github.com/ljharb/function.prototype.name/blob/adeeeec8bfcc6068b187d7d9fb3d5bb1d3a30899/implementation.js +function getName(func) { + if (!util.isFunction(func)) { + return; + } + if (functionsHaveNames) { + return func.name; + } + var str = func.toString(); + var match = str.match(regex); + return match && match[1]; +} +assert.AssertionError = function AssertionError(options) { + this.name = 'AssertionError'; + this.actual = options.actual; + this.expected = options.expected; + this.operator = options.operator; + if (options.message) { + this.message = options.message; + this.generatedMessage = false; + } else { + this.message = getMessage(this); + this.generatedMessage = true; + } + var stackStartFunction = options.stackStartFunction || fail; + if (Error.captureStackTrace) { + Error.captureStackTrace(this, stackStartFunction); + } else { + // non v8 browsers so we can have a stacktrace + var err = new Error(); + if (err.stack) { + var out = err.stack; + + // try to strip useless frames + var fn_name = getName(stackStartFunction); + var idx = out.indexOf('\n' + fn_name); + if (idx >= 0) { + // once we have located the function frame + // we need to strip out everything before it (and its line) + var next_line = out.indexOf('\n', idx + 1); + out = out.substring(next_line + 1); + } + + this.stack = out; + } + } +}; + +// assert.AssertionError instanceof Error +util.inherits(assert.AssertionError, Error); + +function truncate(s, n) { + if (typeof s === 'string') { + return s.length < n ? s : s.slice(0, n); + } else { + return s; + } +} +function inspect(something) { + if (functionsHaveNames || !util.isFunction(something)) { + return util.inspect(something); + } + var rawname = getName(something); + var name = rawname ? ': ' + rawname : ''; + return '[Function' + name + ']'; +} +function getMessage(self) { + return truncate(inspect(self.actual), 128) + ' ' + + self.operator + ' ' + + truncate(inspect(self.expected), 128); +} + +// At present only the three keys mentioned above are used and +// understood by the spec. Implementations or sub modules can pass +// other keys to the AssertionError's constructor - they will be +// ignored. + +// 3. All of the following functions must throw an AssertionError +// when a corresponding condition is not met, with a message that +// may be undefined if not provided. All assertion methods provide +// both the actual and expected values to the assertion error for +// display purposes. + +function fail(actual, expected, message, operator, stackStartFunction) { + throw new assert.AssertionError({ + message: message, + actual: actual, + expected: expected, + operator: operator, + stackStartFunction: stackStartFunction + }); +} + +// EXTENSION! allows for well behaved errors defined elsewhere. +assert.fail = fail; + +// 4. Pure assertion tests whether a value is truthy, as determined +// by !!guard. +// assert.ok(guard, message_opt); +// This statement is equivalent to assert.equal(true, !!guard, +// message_opt);. To test strictly for the value true, use +// assert.strictEqual(true, guard, message_opt);. + +function ok(value, message) { + if (!value) fail(value, true, message, '==', assert.ok); +} +assert.ok = ok; + +// 5. The equality assertion tests shallow, coercive equality with +// ==. +// assert.equal(actual, expected, message_opt); + +assert.equal = function equal(actual, expected, message) { + if (actual != expected) fail(actual, expected, message, '==', assert.equal); +}; + +// 6. The non-equality assertion tests for whether two objects are not equal +// with != assert.notEqual(actual, expected, message_opt); + +assert.notEqual = function notEqual(actual, expected, message) { + if (actual == expected) { + fail(actual, expected, message, '!=', assert.notEqual); + } +}; + +// 7. The equivalence assertion tests a deep equality relation. +// assert.deepEqual(actual, expected, message_opt); + +assert.deepEqual = function deepEqual(actual, expected, message) { + if (!_deepEqual(actual, expected, false)) { + fail(actual, expected, message, 'deepEqual', assert.deepEqual); + } +}; + +assert.deepStrictEqual = function deepStrictEqual(actual, expected, message) { + if (!_deepEqual(actual, expected, true)) { + fail(actual, expected, message, 'deepStrictEqual', assert.deepStrictEqual); + } +}; + +function _deepEqual(actual, expected, strict, memos) { + // 7.1. All identical values are equivalent, as determined by ===. + if (actual === expected) { + return true; + } else if (isBuffer(actual) && isBuffer(expected)) { + return compare(actual, expected) === 0; + + // 7.2. If the expected value is a Date object, the actual value is + // equivalent if it is also a Date object that refers to the same time. + } else if (util.isDate(actual) && util.isDate(expected)) { + return actual.getTime() === expected.getTime(); + + // 7.3 If the expected value is a RegExp object, the actual value is + // equivalent if it is also a RegExp object with the same source and + // properties (`global`, `multiline`, `lastIndex`, `ignoreCase`). + } else if (util.isRegExp(actual) && util.isRegExp(expected)) { + return actual.source === expected.source && + actual.global === expected.global && + actual.multiline === expected.multiline && + actual.lastIndex === expected.lastIndex && + actual.ignoreCase === expected.ignoreCase; + + // 7.4. Other pairs that do not both pass typeof value == 'object', + // equivalence is determined by ==. + } else if ((actual === null || typeof actual !== 'object') && + (expected === null || typeof expected !== 'object')) { + return strict ? actual === expected : actual == expected; + + // If both values are instances of typed arrays, wrap their underlying + // ArrayBuffers in a Buffer each to increase performance + // This optimization requires the arrays to have the same type as checked by + // Object.prototype.toString (aka pToString). Never perform binary + // comparisons for Float*Arrays, though, since e.g. +0 === -0 but their + // bit patterns are not identical. + } else if (isView(actual) && isView(expected) && + pToString(actual) === pToString(expected) && + !(actual instanceof Float32Array || + actual instanceof Float64Array)) { + return compare(new Uint8Array(actual.buffer), + new Uint8Array(expected.buffer)) === 0; + + // 7.5 For all other Object pairs, including Array objects, equivalence is + // determined by having the same number of owned properties (as verified + // with Object.prototype.hasOwnProperty.call), the same set of keys + // (although not necessarily the same order), equivalent values for every + // corresponding key, and an identical 'prototype' property. Note: this + // accounts for both named and indexed properties on Arrays. + } else if (isBuffer(actual) !== isBuffer(expected)) { + return false; + } else { + memos = memos || {actual: [], expected: []}; + + var actualIndex = memos.actual.indexOf(actual); + if (actualIndex !== -1) { + if (actualIndex === memos.expected.indexOf(expected)) { + return true; + } + } + + memos.actual.push(actual); + memos.expected.push(expected); + + return objEquiv(actual, expected, strict, memos); + } +} + +function isArguments(object) { + return Object.prototype.toString.call(object) == '[object Arguments]'; +} + +function objEquiv(a, b, strict, actualVisitedObjects) { + if (a === null || a === undefined || b === null || b === undefined) + return false; + // if one is a primitive, the other must be same + if (util.isPrimitive(a) || util.isPrimitive(b)) + return a === b; + if (strict && Object.getPrototypeOf(a) !== Object.getPrototypeOf(b)) + return false; + var aIsArgs = isArguments(a); + var bIsArgs = isArguments(b); + if ((aIsArgs && !bIsArgs) || (!aIsArgs && bIsArgs)) + return false; + if (aIsArgs) { + a = pSlice.call(a); + b = pSlice.call(b); + return _deepEqual(a, b, strict); + } + var ka = objectKeys(a); + var kb = objectKeys(b); + var key, i; + // having the same number of owned properties (keys incorporates + // hasOwnProperty) + if (ka.length !== kb.length) + return false; + //the same set of keys (although not necessarily the same order), + ka.sort(); + kb.sort(); + //~~~cheap key test + for (i = ka.length - 1; i >= 0; i--) { + if (ka[i] !== kb[i]) + return false; + } + //equivalent values for every corresponding key, and + //~~~possibly expensive deep test + for (i = ka.length - 1; i >= 0; i--) { + key = ka[i]; + if (!_deepEqual(a[key], b[key], strict, actualVisitedObjects)) + return false; + } + return true; +} + +// 8. The non-equivalence assertion tests for any deep inequality. +// assert.notDeepEqual(actual, expected, message_opt); + +assert.notDeepEqual = function notDeepEqual(actual, expected, message) { + if (_deepEqual(actual, expected, false)) { + fail(actual, expected, message, 'notDeepEqual', assert.notDeepEqual); + } +}; + +assert.notDeepStrictEqual = notDeepStrictEqual; +function notDeepStrictEqual(actual, expected, message) { + if (_deepEqual(actual, expected, true)) { + fail(actual, expected, message, 'notDeepStrictEqual', notDeepStrictEqual); + } +} + + +// 9. The strict equality assertion tests strict equality, as determined by ===. +// assert.strictEqual(actual, expected, message_opt); + +assert.strictEqual = function strictEqual(actual, expected, message) { + if (actual !== expected) { + fail(actual, expected, message, '===', assert.strictEqual); + } +}; + +// 10. The strict non-equality assertion tests for strict inequality, as +// determined by !==. assert.notStrictEqual(actual, expected, message_opt); + +assert.notStrictEqual = function notStrictEqual(actual, expected, message) { + if (actual === expected) { + fail(actual, expected, message, '!==', assert.notStrictEqual); + } +}; + +function expectedException(actual, expected) { + if (!actual || !expected) { + return false; + } + + if (Object.prototype.toString.call(expected) == '[object RegExp]') { + return expected.test(actual); + } + + try { + if (actual instanceof expected) { + return true; + } + } catch (e) { + // Ignore. The instanceof check doesn't work for arrow functions. + } + + if (Error.isPrototypeOf(expected)) { + return false; + } + + return expected.call({}, actual) === true; +} + +function _tryBlock(block) { + var error; + try { + block(); + } catch (e) { + error = e; + } + return error; +} + +function _throws(shouldThrow, block, expected, message) { + var actual; + + if (typeof block !== 'function') { + throw new TypeError('"block" argument must be a function'); + } + + if (typeof expected === 'string') { + message = expected; + expected = null; + } + + actual = _tryBlock(block); + + message = (expected && expected.name ? ' (' + expected.name + ').' : '.') + + (message ? ' ' + message : '.'); + + if (shouldThrow && !actual) { + fail(actual, expected, 'Missing expected exception' + message); + } + + var userProvidedMessage = typeof message === 'string'; + var isUnwantedException = !shouldThrow && util.isError(actual); + var isUnexpectedException = !shouldThrow && actual && !expected; + + if ((isUnwantedException && + userProvidedMessage && + expectedException(actual, expected)) || + isUnexpectedException) { + fail(actual, expected, 'Got unwanted exception' + message); + } + + if ((shouldThrow && actual && expected && + !expectedException(actual, expected)) || (!shouldThrow && actual)) { + throw actual; + } +} + +// 11. Expected to throw an error: +// assert.throws(block, Error_opt, message_opt); + +assert.throws = function(block, /*optional*/error, /*optional*/message) { + _throws(true, block, error, message); +}; + +// EXTENSION! This is annoying to write outside this module. +assert.doesNotThrow = function(block, /*optional*/error, /*optional*/message) { + _throws(false, block, error, message); +}; + +assert.ifError = function(err) { if (err) throw err; }; + +var objectKeys = Object.keys || function (obj) { + var keys = []; + for (var key in obj) { + if (hasOwn.call(obj, key)) keys.push(key); + } + return keys; +}; + +}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) +},{"util/":176}],39:[function(require,module,exports){ +'use strict' + +exports.byteLength = byteLength +exports.toByteArray = toByteArray +exports.fromByteArray = fromByteArray + +var lookup = [] +var revLookup = [] +var Arr = typeof Uint8Array !== 'undefined' ? Uint8Array : Array + +var code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/' +for (var i = 0, len = code.length; i < len; ++i) { + lookup[i] = code[i] + revLookup[code.charCodeAt(i)] = i +} + +revLookup['-'.charCodeAt(0)] = 62 +revLookup['_'.charCodeAt(0)] = 63 + +function placeHoldersCount (b64) { + var len = b64.length + if (len % 4 > 0) { + throw new Error('Invalid string. Length must be a multiple of 4') + } + + // the number of equal signs (place holders) + // if there are two placeholders, than the two characters before it + // represent one byte + // if there is only one, then the three characters before it represent 2 bytes + // this is just a cheap hack to not do indexOf twice + return b64[len - 2] === '=' ? 2 : b64[len - 1] === '=' ? 1 : 0 +} + +function byteLength (b64) { + // base64 is 4/3 + up to two characters of the original data + return (b64.length * 3 / 4) - placeHoldersCount(b64) +} + +function toByteArray (b64) { + var i, l, tmp, placeHolders, arr + var len = b64.length + placeHolders = placeHoldersCount(b64) + + arr = new Arr((len * 3 / 4) - placeHolders) + + // if there are placeholders, only get up to the last complete 4 chars + l = placeHolders > 0 ? len - 4 : len + + var L = 0 + + for (i = 0; i < l; i += 4) { + tmp = (revLookup[b64.charCodeAt(i)] << 18) | (revLookup[b64.charCodeAt(i + 1)] << 12) | (revLookup[b64.charCodeAt(i + 2)] << 6) | revLookup[b64.charCodeAt(i + 3)] + arr[L++] = (tmp >> 16) & 0xFF + arr[L++] = (tmp >> 8) & 0xFF + arr[L++] = tmp & 0xFF + } + + if (placeHolders === 2) { + tmp = (revLookup[b64.charCodeAt(i)] << 2) | (revLookup[b64.charCodeAt(i + 1)] >> 4) + arr[L++] = tmp & 0xFF + } else if (placeHolders === 1) { + tmp = (revLookup[b64.charCodeAt(i)] << 10) | (revLookup[b64.charCodeAt(i + 1)] << 4) | (revLookup[b64.charCodeAt(i + 2)] >> 2) + arr[L++] = (tmp >> 8) & 0xFF + arr[L++] = tmp & 0xFF + } + + return arr +} + +function tripletToBase64 (num) { + return lookup[num >> 18 & 0x3F] + lookup[num >> 12 & 0x3F] + lookup[num >> 6 & 0x3F] + lookup[num & 0x3F] +} + +function encodeChunk (uint8, start, end) { + var tmp + var output = [] + for (var i = start; i < end; i += 3) { + tmp = (uint8[i] << 16) + (uint8[i + 1] << 8) + (uint8[i + 2]) + output.push(tripletToBase64(tmp)) + } + return output.join('') +} + +function fromByteArray (uint8) { + var tmp + var len = uint8.length + var extraBytes = len % 3 // if we have 1 byte left, pad 2 bytes + var output = '' + var parts = [] + var maxChunkLength = 16383 // must be multiple of 3 + + // go through the array every three bytes, we'll deal with trailing stuff later + for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) { + parts.push(encodeChunk(uint8, i, (i + maxChunkLength) > len2 ? len2 : (i + maxChunkLength))) + } + + // pad the end with zeros, but make sure to not forget the extra bytes + if (extraBytes === 1) { + tmp = uint8[len - 1] + output += lookup[tmp >> 2] + output += lookup[(tmp << 4) & 0x3F] + output += '==' + } else if (extraBytes === 2) { + tmp = (uint8[len - 2] << 8) + (uint8[len - 1]) + output += lookup[tmp >> 10] + output += lookup[(tmp >> 4) & 0x3F] + output += lookup[(tmp << 2) & 0x3F] + output += '=' + } + + parts.push(output) + + return parts.join('') +} + +},{}],40:[function(require,module,exports){ +(function (module, exports) { + 'use strict'; + + // Utils + function assert (val, msg) { + if (!val) throw new Error(msg || 'Assertion failed'); + } + + // Could use `inherits` module, but don't want to move from single file + // architecture yet. + function inherits (ctor, superCtor) { + ctor.super_ = superCtor; + var TempCtor = function () {}; + TempCtor.prototype = superCtor.prototype; + ctor.prototype = new TempCtor(); + ctor.prototype.constructor = ctor; + } + + // BN + + function BN (number, base, endian) { + if (BN.isBN(number)) { + return number; + } + + this.negative = 0; + this.words = null; + this.length = 0; + + // Reduction context + this.red = null; + + if (number !== null) { + if (base === 'le' || base === 'be') { + endian = base; + base = 10; + } + + this._init(number || 0, base || 10, endian || 'be'); + } + } + if (typeof module === 'object') { + module.exports = BN; + } else { + exports.BN = BN; + } + + BN.BN = BN; + BN.wordSize = 26; + + var Buffer; + try { + // Obfuscate that we require Buffer, to reduce size + Buffer = require('buf' + 'fer').Buffer; + } catch (e) { + } + + BN.isBN = function isBN (num) { + if (num instanceof BN) { + return true; + } + + return num !== null && typeof num === 'object' && + num.constructor.wordSize === BN.wordSize && Array.isArray(num.words); + }; + + BN.max = function max (left, right) { + if (left.cmp(right) > 0) return left; + return right; + }; + + BN.min = function min (left, right) { + if (left.cmp(right) < 0) return left; + return right; + }; + + BN.prototype._init = function init (number, base, endian) { + if (typeof number === 'number') { + return this._initNumber(number, base, endian); + } + + if (typeof number === 'object') { + return this._initArray(number, base, endian); + } + + if (base === 'hex') { + base = 16; + } + assert(base === (base | 0) && base >= 2 && base <= 36); + + number = number.toString().replace(/\s+/g, ''); + var start = 0; + if (number[0] === '-') { + start++; + } + + if (base === 16) { + this._parseHex(number, start); + } else { + this._parseBase(number, base, start); + } + + if (number[0] === '-') { + this.negative = 1; + } + + this.strip(); + + if (endian !== 'le') return; + + this._initArray(this.toArray(), base, endian); + }; + + BN.prototype._initNumber = function _initNumber (number, base, endian) { + if (number < 0) { + this.negative = 1; + number = -number; + } + if (number < 0x4000000) { + this.words = [ number & 0x3ffffff ]; + this.length = 1; + } else if (number < 0x10000000000000) { + this.words = [ + number & 0x3ffffff, + (number / 0x4000000) & 0x3ffffff + ]; + this.length = 2; + } else { + assert(number < 0x20000000000000); // 2 ^ 53 (unsafe) + this.words = [ + number & 0x3ffffff, + (number / 0x4000000) & 0x3ffffff, + 1 + ]; + this.length = 3; + } + + if (endian !== 'le') return; + + // Reverse the bytes + this._initArray(this.toArray(), base, endian); + }; + + BN.prototype._initArray = function _initArray (number, base, endian) { + // Perhaps a Uint8Array + assert(typeof number.length === 'number'); + if (number.length <= 0) { + this.words = [ 0 ]; + this.length = 1; + return this; + } + + this.length = Math.ceil(number.length / 3); + this.words = new Array(this.length); + for (var i = 0; i < this.length; i++) { + this.words[i] = 0; + } + + var j, w; + var off = 0; + if (endian === 'be') { + for (i = number.length - 1, j = 0; i >= 0; i -= 3) { + w = number[i] | (number[i - 1] << 8) | (number[i - 2] << 16); + this.words[j] |= (w << off) & 0x3ffffff; + this.words[j + 1] = (w >>> (26 - off)) & 0x3ffffff; + off += 24; + if (off >= 26) { + off -= 26; + j++; + } + } + } else if (endian === 'le') { + for (i = 0, j = 0; i < number.length; i += 3) { + w = number[i] | (number[i + 1] << 8) | (number[i + 2] << 16); + this.words[j] |= (w << off) & 0x3ffffff; + this.words[j + 1] = (w >>> (26 - off)) & 0x3ffffff; + off += 24; + if (off >= 26) { + off -= 26; + j++; + } + } + } + return this.strip(); + }; + + function parseHex (str, start, end) { + var r = 0; + var len = Math.min(str.length, end); + for (var i = start; i < len; i++) { + var c = str.charCodeAt(i) - 48; + + r <<= 4; + + // 'a' - 'f' + if (c >= 49 && c <= 54) { + r |= c - 49 + 0xa; + + // 'A' - 'F' + } else if (c >= 17 && c <= 22) { + r |= c - 17 + 0xa; + + // '0' - '9' + } else { + r |= c & 0xf; + } + } + return r; + } + + BN.prototype._parseHex = function _parseHex (number, start) { + // Create possibly bigger array to ensure that it fits the number + this.length = Math.ceil((number.length - start) / 6); + this.words = new Array(this.length); + for (var i = 0; i < this.length; i++) { + this.words[i] = 0; + } + + var j, w; + // Scan 24-bit chunks and add them to the number + var off = 0; + for (i = number.length - 6, j = 0; i >= start; i -= 6) { + w = parseHex(number, i, i + 6); + this.words[j] |= (w << off) & 0x3ffffff; + // NOTE: `0x3fffff` is intentional here, 26bits max shift + 24bit hex limb + this.words[j + 1] |= w >>> (26 - off) & 0x3fffff; + off += 24; + if (off >= 26) { + off -= 26; + j++; + } + } + if (i + 6 !== start) { + w = parseHex(number, start, i + 6); + this.words[j] |= (w << off) & 0x3ffffff; + this.words[j + 1] |= w >>> (26 - off) & 0x3fffff; + } + this.strip(); + }; + + function parseBase (str, start, end, mul) { + var r = 0; + var len = Math.min(str.length, end); + for (var i = start; i < len; i++) { + var c = str.charCodeAt(i) - 48; + + r *= mul; + + // 'a' + if (c >= 49) { + r += c - 49 + 0xa; + + // 'A' + } else if (c >= 17) { + r += c - 17 + 0xa; + + // '0' - '9' + } else { + r += c; + } + } + return r; + } + + BN.prototype._parseBase = function _parseBase (number, base, start) { + // Initialize as zero + this.words = [ 0 ]; + this.length = 1; + + // Find length of limb in base + for (var limbLen = 0, limbPow = 1; limbPow <= 0x3ffffff; limbPow *= base) { + limbLen++; + } + limbLen--; + limbPow = (limbPow / base) | 0; + + var total = number.length - start; + var mod = total % limbLen; + var end = Math.min(total, total - mod) + start; + + var word = 0; + for (var i = start; i < end; i += limbLen) { + word = parseBase(number, i, i + limbLen, base); + + this.imuln(limbPow); + if (this.words[0] + word < 0x4000000) { + this.words[0] += word; + } else { + this._iaddn(word); + } + } + + if (mod !== 0) { + var pow = 1; + word = parseBase(number, i, number.length, base); + + for (i = 0; i < mod; i++) { + pow *= base; + } + + this.imuln(pow); + if (this.words[0] + word < 0x4000000) { + this.words[0] += word; + } else { + this._iaddn(word); + } + } + }; + + BN.prototype.copy = function copy (dest) { + dest.words = new Array(this.length); + for (var i = 0; i < this.length; i++) { + dest.words[i] = this.words[i]; + } + dest.length = this.length; + dest.negative = this.negative; + dest.red = this.red; + }; + + BN.prototype.clone = function clone () { + var r = new BN(null); + this.copy(r); + return r; + }; + + BN.prototype._expand = function _expand (size) { + while (this.length < size) { + this.words[this.length++] = 0; + } + return this; + }; + + // Remove leading `0` from `this` + BN.prototype.strip = function strip () { + while (this.length > 1 && this.words[this.length - 1] === 0) { + this.length--; + } + return this._normSign(); + }; + + BN.prototype._normSign = function _normSign () { + // -0 = 0 + if (this.length === 1 && this.words[0] === 0) { + this.negative = 0; + } + return this; + }; + + BN.prototype.inspect = function inspect () { + return (this.red ? ''; + }; + + /* + + var zeros = []; + var groupSizes = []; + var groupBases = []; + + var s = ''; + var i = -1; + while (++i < BN.wordSize) { + zeros[i] = s; + s += '0'; + } + groupSizes[0] = 0; + groupSizes[1] = 0; + groupBases[0] = 0; + groupBases[1] = 0; + var base = 2 - 1; + while (++base < 36 + 1) { + var groupSize = 0; + var groupBase = 1; + while (groupBase < (1 << BN.wordSize) / base) { + groupBase *= base; + groupSize += 1; + } + groupSizes[base] = groupSize; + groupBases[base] = groupBase; + } + + */ + + var zeros = [ + '', + '0', + '00', + '000', + '0000', + '00000', + '000000', + '0000000', + '00000000', + '000000000', + '0000000000', + '00000000000', + '000000000000', + '0000000000000', + '00000000000000', + '000000000000000', + '0000000000000000', + '00000000000000000', + '000000000000000000', + '0000000000000000000', + '00000000000000000000', + '000000000000000000000', + '0000000000000000000000', + '00000000000000000000000', + '000000000000000000000000', + '0000000000000000000000000' + ]; + + var groupSizes = [ + 0, 0, + 25, 16, 12, 11, 10, 9, 8, + 8, 7, 7, 7, 7, 6, 6, + 6, 6, 6, 6, 6, 5, 5, + 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5 + ]; + + var groupBases = [ + 0, 0, + 33554432, 43046721, 16777216, 48828125, 60466176, 40353607, 16777216, + 43046721, 10000000, 19487171, 35831808, 62748517, 7529536, 11390625, + 16777216, 24137569, 34012224, 47045881, 64000000, 4084101, 5153632, + 6436343, 7962624, 9765625, 11881376, 14348907, 17210368, 20511149, + 24300000, 28629151, 33554432, 39135393, 45435424, 52521875, 60466176 + ]; + + BN.prototype.toString = function toString (base, padding) { + base = base || 10; + padding = padding | 0 || 1; + + var out; + if (base === 16 || base === 'hex') { + out = ''; + var off = 0; + var carry = 0; + for (var i = 0; i < this.length; i++) { + var w = this.words[i]; + var word = (((w << off) | carry) & 0xffffff).toString(16); + carry = (w >>> (24 - off)) & 0xffffff; + if (carry !== 0 || i !== this.length - 1) { + out = zeros[6 - word.length] + word + out; + } else { + out = word + out; + } + off += 2; + if (off >= 26) { + off -= 26; + i--; + } + } + if (carry !== 0) { + out = carry.toString(16) + out; + } + while (out.length % padding !== 0) { + out = '0' + out; + } + if (this.negative !== 0) { + out = '-' + out; + } + return out; + } + + if (base === (base | 0) && base >= 2 && base <= 36) { + // var groupSize = Math.floor(BN.wordSize * Math.LN2 / Math.log(base)); + var groupSize = groupSizes[base]; + // var groupBase = Math.pow(base, groupSize); + var groupBase = groupBases[base]; + out = ''; + var c = this.clone(); + c.negative = 0; + while (!c.isZero()) { + var r = c.modn(groupBase).toString(base); + c = c.idivn(groupBase); + + if (!c.isZero()) { + out = zeros[groupSize - r.length] + r + out; + } else { + out = r + out; + } + } + if (this.isZero()) { + out = '0' + out; + } + while (out.length % padding !== 0) { + out = '0' + out; + } + if (this.negative !== 0) { + out = '-' + out; + } + return out; + } + + assert(false, 'Base should be between 2 and 36'); + }; + + BN.prototype.toNumber = function toNumber () { + var ret = this.words[0]; + if (this.length === 2) { + ret += this.words[1] * 0x4000000; + } else if (this.length === 3 && this.words[2] === 0x01) { + // NOTE: at this stage it is known that the top bit is set + ret += 0x10000000000000 + (this.words[1] * 0x4000000); + } else if (this.length > 2) { + assert(false, 'Number can only safely store up to 53 bits'); + } + return (this.negative !== 0) ? -ret : ret; + }; + + BN.prototype.toJSON = function toJSON () { + return this.toString(16); + }; + + BN.prototype.toBuffer = function toBuffer (endian, length) { + assert(typeof Buffer !== 'undefined'); + return this.toArrayLike(Buffer, endian, length); + }; + + BN.prototype.toArray = function toArray (endian, length) { + return this.toArrayLike(Array, endian, length); + }; + + BN.prototype.toArrayLike = function toArrayLike (ArrayType, endian, length) { + var byteLength = this.byteLength(); + var reqLength = length || Math.max(1, byteLength); + assert(byteLength <= reqLength, 'byte array longer than desired length'); + assert(reqLength > 0, 'Requested array length <= 0'); + + this.strip(); + var littleEndian = endian === 'le'; + var res = new ArrayType(reqLength); + + var b, i; + var q = this.clone(); + if (!littleEndian) { + // Assume big-endian + for (i = 0; i < reqLength - byteLength; i++) { + res[i] = 0; + } + + for (i = 0; !q.isZero(); i++) { + b = q.andln(0xff); + q.iushrn(8); + + res[reqLength - i - 1] = b; + } + } else { + for (i = 0; !q.isZero(); i++) { + b = q.andln(0xff); + q.iushrn(8); + + res[i] = b; + } + + for (; i < reqLength; i++) { + res[i] = 0; + } + } + + return res; + }; + + if (Math.clz32) { + BN.prototype._countBits = function _countBits (w) { + return 32 - Math.clz32(w); + }; + } else { + BN.prototype._countBits = function _countBits (w) { + var t = w; + var r = 0; + if (t >= 0x1000) { + r += 13; + t >>>= 13; + } + if (t >= 0x40) { + r += 7; + t >>>= 7; + } + if (t >= 0x8) { + r += 4; + t >>>= 4; + } + if (t >= 0x02) { + r += 2; + t >>>= 2; + } + return r + t; + }; + } + + BN.prototype._zeroBits = function _zeroBits (w) { + // Short-cut + if (w === 0) return 26; + + var t = w; + var r = 0; + if ((t & 0x1fff) === 0) { + r += 13; + t >>>= 13; + } + if ((t & 0x7f) === 0) { + r += 7; + t >>>= 7; + } + if ((t & 0xf) === 0) { + r += 4; + t >>>= 4; + } + if ((t & 0x3) === 0) { + r += 2; + t >>>= 2; + } + if ((t & 0x1) === 0) { + r++; + } + return r; + }; + + // Return number of used bits in a BN + BN.prototype.bitLength = function bitLength () { + var w = this.words[this.length - 1]; + var hi = this._countBits(w); + return (this.length - 1) * 26 + hi; + }; + + function toBitArray (num) { + var w = new Array(num.bitLength()); + + for (var bit = 0; bit < w.length; bit++) { + var off = (bit / 26) | 0; + var wbit = bit % 26; + + w[bit] = (num.words[off] & (1 << wbit)) >>> wbit; + } + + return w; + } + + // Number of trailing zero bits + BN.prototype.zeroBits = function zeroBits () { + if (this.isZero()) return 0; + + var r = 0; + for (var i = 0; i < this.length; i++) { + var b = this._zeroBits(this.words[i]); + r += b; + if (b !== 26) break; + } + return r; + }; + + BN.prototype.byteLength = function byteLength () { + return Math.ceil(this.bitLength() / 8); + }; + + BN.prototype.toTwos = function toTwos (width) { + if (this.negative !== 0) { + return this.abs().inotn(width).iaddn(1); + } + return this.clone(); + }; + + BN.prototype.fromTwos = function fromTwos (width) { + if (this.testn(width - 1)) { + return this.notn(width).iaddn(1).ineg(); + } + return this.clone(); + }; + + BN.prototype.isNeg = function isNeg () { + return this.negative !== 0; + }; + + // Return negative clone of `this` + BN.prototype.neg = function neg () { + return this.clone().ineg(); + }; + + BN.prototype.ineg = function ineg () { + if (!this.isZero()) { + this.negative ^= 1; + } + + return this; + }; + + // Or `num` with `this` in-place + BN.prototype.iuor = function iuor (num) { + while (this.length < num.length) { + this.words[this.length++] = 0; + } + + for (var i = 0; i < num.length; i++) { + this.words[i] = this.words[i] | num.words[i]; + } + + return this.strip(); + }; + + BN.prototype.ior = function ior (num) { + assert((this.negative | num.negative) === 0); + return this.iuor(num); + }; + + // Or `num` with `this` + BN.prototype.or = function or (num) { + if (this.length > num.length) return this.clone().ior(num); + return num.clone().ior(this); + }; + + BN.prototype.uor = function uor (num) { + if (this.length > num.length) return this.clone().iuor(num); + return num.clone().iuor(this); + }; + + // And `num` with `this` in-place + BN.prototype.iuand = function iuand (num) { + // b = min-length(num, this) + var b; + if (this.length > num.length) { + b = num; + } else { + b = this; + } + + for (var i = 0; i < b.length; i++) { + this.words[i] = this.words[i] & num.words[i]; + } + + this.length = b.length; + + return this.strip(); + }; + + BN.prototype.iand = function iand (num) { + assert((this.negative | num.negative) === 0); + return this.iuand(num); + }; + + // And `num` with `this` + BN.prototype.and = function and (num) { + if (this.length > num.length) return this.clone().iand(num); + return num.clone().iand(this); + }; + + BN.prototype.uand = function uand (num) { + if (this.length > num.length) return this.clone().iuand(num); + return num.clone().iuand(this); + }; + + // Xor `num` with `this` in-place + BN.prototype.iuxor = function iuxor (num) { + // a.length > b.length + var a; + var b; + if (this.length > num.length) { + a = this; + b = num; + } else { + a = num; + b = this; + } + + for (var i = 0; i < b.length; i++) { + this.words[i] = a.words[i] ^ b.words[i]; + } + + if (this !== a) { + for (; i < a.length; i++) { + this.words[i] = a.words[i]; + } + } + + this.length = a.length; + + return this.strip(); + }; + + BN.prototype.ixor = function ixor (num) { + assert((this.negative | num.negative) === 0); + return this.iuxor(num); + }; + + // Xor `num` with `this` + BN.prototype.xor = function xor (num) { + if (this.length > num.length) return this.clone().ixor(num); + return num.clone().ixor(this); + }; + + BN.prototype.uxor = function uxor (num) { + if (this.length > num.length) return this.clone().iuxor(num); + return num.clone().iuxor(this); + }; + + // Not ``this`` with ``width`` bitwidth + BN.prototype.inotn = function inotn (width) { + assert(typeof width === 'number' && width >= 0); + + var bytesNeeded = Math.ceil(width / 26) | 0; + var bitsLeft = width % 26; + + // Extend the buffer with leading zeroes + this._expand(bytesNeeded); + + if (bitsLeft > 0) { + bytesNeeded--; + } + + // Handle complete words + for (var i = 0; i < bytesNeeded; i++) { + this.words[i] = ~this.words[i] & 0x3ffffff; + } + + // Handle the residue + if (bitsLeft > 0) { + this.words[i] = ~this.words[i] & (0x3ffffff >> (26 - bitsLeft)); + } + + // And remove leading zeroes + return this.strip(); + }; + + BN.prototype.notn = function notn (width) { + return this.clone().inotn(width); + }; + + // Set `bit` of `this` + BN.prototype.setn = function setn (bit, val) { + assert(typeof bit === 'number' && bit >= 0); + + var off = (bit / 26) | 0; + var wbit = bit % 26; + + this._expand(off + 1); + + if (val) { + this.words[off] = this.words[off] | (1 << wbit); + } else { + this.words[off] = this.words[off] & ~(1 << wbit); + } + + return this.strip(); + }; + + // Add `num` to `this` in-place + BN.prototype.iadd = function iadd (num) { + var r; + + // negative + positive + if (this.negative !== 0 && num.negative === 0) { + this.negative = 0; + r = this.isub(num); + this.negative ^= 1; + return this._normSign(); + + // positive + negative + } else if (this.negative === 0 && num.negative !== 0) { + num.negative = 0; + r = this.isub(num); + num.negative = 1; + return r._normSign(); + } + + // a.length > b.length + var a, b; + if (this.length > num.length) { + a = this; + b = num; + } else { + a = num; + b = this; + } + + var carry = 0; + for (var i = 0; i < b.length; i++) { + r = (a.words[i] | 0) + (b.words[i] | 0) + carry; + this.words[i] = r & 0x3ffffff; + carry = r >>> 26; + } + for (; carry !== 0 && i < a.length; i++) { + r = (a.words[i] | 0) + carry; + this.words[i] = r & 0x3ffffff; + carry = r >>> 26; + } + + this.length = a.length; + if (carry !== 0) { + this.words[this.length] = carry; + this.length++; + // Copy the rest of the words + } else if (a !== this) { + for (; i < a.length; i++) { + this.words[i] = a.words[i]; + } + } + + return this; + }; + + // Add `num` to `this` + BN.prototype.add = function add (num) { + var res; + if (num.negative !== 0 && this.negative === 0) { + num.negative = 0; + res = this.sub(num); + num.negative ^= 1; + return res; + } else if (num.negative === 0 && this.negative !== 0) { + this.negative = 0; + res = num.sub(this); + this.negative = 1; + return res; + } + + if (this.length > num.length) return this.clone().iadd(num); + + return num.clone().iadd(this); + }; + + // Subtract `num` from `this` in-place + BN.prototype.isub = function isub (num) { + // this - (-num) = this + num + if (num.negative !== 0) { + num.negative = 0; + var r = this.iadd(num); + num.negative = 1; + return r._normSign(); + + // -this - num = -(this + num) + } else if (this.negative !== 0) { + this.negative = 0; + this.iadd(num); + this.negative = 1; + return this._normSign(); + } + + // At this point both numbers are positive + var cmp = this.cmp(num); + + // Optimization - zeroify + if (cmp === 0) { + this.negative = 0; + this.length = 1; + this.words[0] = 0; + return this; + } + + // a > b + var a, b; + if (cmp > 0) { + a = this; + b = num; + } else { + a = num; + b = this; + } + + var carry = 0; + for (var i = 0; i < b.length; i++) { + r = (a.words[i] | 0) - (b.words[i] | 0) + carry; + carry = r >> 26; + this.words[i] = r & 0x3ffffff; + } + for (; carry !== 0 && i < a.length; i++) { + r = (a.words[i] | 0) + carry; + carry = r >> 26; + this.words[i] = r & 0x3ffffff; + } + + // Copy rest of the words + if (carry === 0 && i < a.length && a !== this) { + for (; i < a.length; i++) { + this.words[i] = a.words[i]; + } + } + + this.length = Math.max(this.length, i); + + if (a !== this) { + this.negative = 1; + } + + return this.strip(); + }; + + // Subtract `num` from `this` + BN.prototype.sub = function sub (num) { + return this.clone().isub(num); + }; + + function smallMulTo (self, num, out) { + out.negative = num.negative ^ self.negative; + var len = (self.length + num.length) | 0; + out.length = len; + len = (len - 1) | 0; + + // Peel one iteration (compiler can't do it, because of code complexity) + var a = self.words[0] | 0; + var b = num.words[0] | 0; + var r = a * b; + + var lo = r & 0x3ffffff; + var carry = (r / 0x4000000) | 0; + out.words[0] = lo; + + for (var k = 1; k < len; k++) { + // Sum all words with the same `i + j = k` and accumulate `ncarry`, + // note that ncarry could be >= 0x3ffffff + var ncarry = carry >>> 26; + var rword = carry & 0x3ffffff; + var maxJ = Math.min(k, num.length - 1); + for (var j = Math.max(0, k - self.length + 1); j <= maxJ; j++) { + var i = (k - j) | 0; + a = self.words[i] | 0; + b = num.words[j] | 0; + r = a * b + rword; + ncarry += (r / 0x4000000) | 0; + rword = r & 0x3ffffff; + } + out.words[k] = rword | 0; + carry = ncarry | 0; + } + if (carry !== 0) { + out.words[k] = carry | 0; + } else { + out.length--; + } + + return out.strip(); + } + + // TODO(indutny): it may be reasonable to omit it for users who don't need + // to work with 256-bit numbers, otherwise it gives 20% improvement for 256-bit + // multiplication (like elliptic secp256k1). + var comb10MulTo = function comb10MulTo (self, num, out) { + var a = self.words; + var b = num.words; + var o = out.words; + var c = 0; + var lo; + var mid; + var hi; + var a0 = a[0] | 0; + var al0 = a0 & 0x1fff; + var ah0 = a0 >>> 13; + var a1 = a[1] | 0; + var al1 = a1 & 0x1fff; + var ah1 = a1 >>> 13; + var a2 = a[2] | 0; + var al2 = a2 & 0x1fff; + var ah2 = a2 >>> 13; + var a3 = a[3] | 0; + var al3 = a3 & 0x1fff; + var ah3 = a3 >>> 13; + var a4 = a[4] | 0; + var al4 = a4 & 0x1fff; + var ah4 = a4 >>> 13; + var a5 = a[5] | 0; + var al5 = a5 & 0x1fff; + var ah5 = a5 >>> 13; + var a6 = a[6] | 0; + var al6 = a6 & 0x1fff; + var ah6 = a6 >>> 13; + var a7 = a[7] | 0; + var al7 = a7 & 0x1fff; + var ah7 = a7 >>> 13; + var a8 = a[8] | 0; + var al8 = a8 & 0x1fff; + var ah8 = a8 >>> 13; + var a9 = a[9] | 0; + var al9 = a9 & 0x1fff; + var ah9 = a9 >>> 13; + var b0 = b[0] | 0; + var bl0 = b0 & 0x1fff; + var bh0 = b0 >>> 13; + var b1 = b[1] | 0; + var bl1 = b1 & 0x1fff; + var bh1 = b1 >>> 13; + var b2 = b[2] | 0; + var bl2 = b2 & 0x1fff; + var bh2 = b2 >>> 13; + var b3 = b[3] | 0; + var bl3 = b3 & 0x1fff; + var bh3 = b3 >>> 13; + var b4 = b[4] | 0; + var bl4 = b4 & 0x1fff; + var bh4 = b4 >>> 13; + var b5 = b[5] | 0; + var bl5 = b5 & 0x1fff; + var bh5 = b5 >>> 13; + var b6 = b[6] | 0; + var bl6 = b6 & 0x1fff; + var bh6 = b6 >>> 13; + var b7 = b[7] | 0; + var bl7 = b7 & 0x1fff; + var bh7 = b7 >>> 13; + var b8 = b[8] | 0; + var bl8 = b8 & 0x1fff; + var bh8 = b8 >>> 13; + var b9 = b[9] | 0; + var bl9 = b9 & 0x1fff; + var bh9 = b9 >>> 13; + + out.negative = self.negative ^ num.negative; + out.length = 19; + /* k = 0 */ + lo = Math.imul(al0, bl0); + mid = Math.imul(al0, bh0); + mid = (mid + Math.imul(ah0, bl0)) | 0; + hi = Math.imul(ah0, bh0); + var w0 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w0 >>> 26)) | 0; + w0 &= 0x3ffffff; + /* k = 1 */ + lo = Math.imul(al1, bl0); + mid = Math.imul(al1, bh0); + mid = (mid + Math.imul(ah1, bl0)) | 0; + hi = Math.imul(ah1, bh0); + lo = (lo + Math.imul(al0, bl1)) | 0; + mid = (mid + Math.imul(al0, bh1)) | 0; + mid = (mid + Math.imul(ah0, bl1)) | 0; + hi = (hi + Math.imul(ah0, bh1)) | 0; + var w1 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w1 >>> 26)) | 0; + w1 &= 0x3ffffff; + /* k = 2 */ + lo = Math.imul(al2, bl0); + mid = Math.imul(al2, bh0); + mid = (mid + Math.imul(ah2, bl0)) | 0; + hi = Math.imul(ah2, bh0); + lo = (lo + Math.imul(al1, bl1)) | 0; + mid = (mid + Math.imul(al1, bh1)) | 0; + mid = (mid + Math.imul(ah1, bl1)) | 0; + hi = (hi + Math.imul(ah1, bh1)) | 0; + lo = (lo + Math.imul(al0, bl2)) | 0; + mid = (mid + Math.imul(al0, bh2)) | 0; + mid = (mid + Math.imul(ah0, bl2)) | 0; + hi = (hi + Math.imul(ah0, bh2)) | 0; + var w2 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w2 >>> 26)) | 0; + w2 &= 0x3ffffff; + /* k = 3 */ + lo = Math.imul(al3, bl0); + mid = Math.imul(al3, bh0); + mid = (mid + Math.imul(ah3, bl0)) | 0; + hi = Math.imul(ah3, bh0); + lo = (lo + Math.imul(al2, bl1)) | 0; + mid = (mid + Math.imul(al2, bh1)) | 0; + mid = (mid + Math.imul(ah2, bl1)) | 0; + hi = (hi + Math.imul(ah2, bh1)) | 0; + lo = (lo + Math.imul(al1, bl2)) | 0; + mid = (mid + Math.imul(al1, bh2)) | 0; + mid = (mid + Math.imul(ah1, bl2)) | 0; + hi = (hi + Math.imul(ah1, bh2)) | 0; + lo = (lo + Math.imul(al0, bl3)) | 0; + mid = (mid + Math.imul(al0, bh3)) | 0; + mid = (mid + Math.imul(ah0, bl3)) | 0; + hi = (hi + Math.imul(ah0, bh3)) | 0; + var w3 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w3 >>> 26)) | 0; + w3 &= 0x3ffffff; + /* k = 4 */ + lo = Math.imul(al4, bl0); + mid = Math.imul(al4, bh0); + mid = (mid + Math.imul(ah4, bl0)) | 0; + hi = Math.imul(ah4, bh0); + lo = (lo + Math.imul(al3, bl1)) | 0; + mid = (mid + Math.imul(al3, bh1)) | 0; + mid = (mid + Math.imul(ah3, bl1)) | 0; + hi = (hi + Math.imul(ah3, bh1)) | 0; + lo = (lo + Math.imul(al2, bl2)) | 0; + mid = (mid + Math.imul(al2, bh2)) | 0; + mid = (mid + Math.imul(ah2, bl2)) | 0; + hi = (hi + Math.imul(ah2, bh2)) | 0; + lo = (lo + Math.imul(al1, bl3)) | 0; + mid = (mid + Math.imul(al1, bh3)) | 0; + mid = (mid + Math.imul(ah1, bl3)) | 0; + hi = (hi + Math.imul(ah1, bh3)) | 0; + lo = (lo + Math.imul(al0, bl4)) | 0; + mid = (mid + Math.imul(al0, bh4)) | 0; + mid = (mid + Math.imul(ah0, bl4)) | 0; + hi = (hi + Math.imul(ah0, bh4)) | 0; + var w4 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w4 >>> 26)) | 0; + w4 &= 0x3ffffff; + /* k = 5 */ + lo = Math.imul(al5, bl0); + mid = Math.imul(al5, bh0); + mid = (mid + Math.imul(ah5, bl0)) | 0; + hi = Math.imul(ah5, bh0); + lo = (lo + Math.imul(al4, bl1)) | 0; + mid = (mid + Math.imul(al4, bh1)) | 0; + mid = (mid + Math.imul(ah4, bl1)) | 0; + hi = (hi + Math.imul(ah4, bh1)) | 0; + lo = (lo + Math.imul(al3, bl2)) | 0; + mid = (mid + Math.imul(al3, bh2)) | 0; + mid = (mid + Math.imul(ah3, bl2)) | 0; + hi = (hi + Math.imul(ah3, bh2)) | 0; + lo = (lo + Math.imul(al2, bl3)) | 0; + mid = (mid + Math.imul(al2, bh3)) | 0; + mid = (mid + Math.imul(ah2, bl3)) | 0; + hi = (hi + Math.imul(ah2, bh3)) | 0; + lo = (lo + Math.imul(al1, bl4)) | 0; + mid = (mid + Math.imul(al1, bh4)) | 0; + mid = (mid + Math.imul(ah1, bl4)) | 0; + hi = (hi + Math.imul(ah1, bh4)) | 0; + lo = (lo + Math.imul(al0, bl5)) | 0; + mid = (mid + Math.imul(al0, bh5)) | 0; + mid = (mid + Math.imul(ah0, bl5)) | 0; + hi = (hi + Math.imul(ah0, bh5)) | 0; + var w5 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w5 >>> 26)) | 0; + w5 &= 0x3ffffff; + /* k = 6 */ + lo = Math.imul(al6, bl0); + mid = Math.imul(al6, bh0); + mid = (mid + Math.imul(ah6, bl0)) | 0; + hi = Math.imul(ah6, bh0); + lo = (lo + Math.imul(al5, bl1)) | 0; + mid = (mid + Math.imul(al5, bh1)) | 0; + mid = (mid + Math.imul(ah5, bl1)) | 0; + hi = (hi + Math.imul(ah5, bh1)) | 0; + lo = (lo + Math.imul(al4, bl2)) | 0; + mid = (mid + Math.imul(al4, bh2)) | 0; + mid = (mid + Math.imul(ah4, bl2)) | 0; + hi = (hi + Math.imul(ah4, bh2)) | 0; + lo = (lo + Math.imul(al3, bl3)) | 0; + mid = (mid + Math.imul(al3, bh3)) | 0; + mid = (mid + Math.imul(ah3, bl3)) | 0; + hi = (hi + Math.imul(ah3, bh3)) | 0; + lo = (lo + Math.imul(al2, bl4)) | 0; + mid = (mid + Math.imul(al2, bh4)) | 0; + mid = (mid + Math.imul(ah2, bl4)) | 0; + hi = (hi + Math.imul(ah2, bh4)) | 0; + lo = (lo + Math.imul(al1, bl5)) | 0; + mid = (mid + Math.imul(al1, bh5)) | 0; + mid = (mid + Math.imul(ah1, bl5)) | 0; + hi = (hi + Math.imul(ah1, bh5)) | 0; + lo = (lo + Math.imul(al0, bl6)) | 0; + mid = (mid + Math.imul(al0, bh6)) | 0; + mid = (mid + Math.imul(ah0, bl6)) | 0; + hi = (hi + Math.imul(ah0, bh6)) | 0; + var w6 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w6 >>> 26)) | 0; + w6 &= 0x3ffffff; + /* k = 7 */ + lo = Math.imul(al7, bl0); + mid = Math.imul(al7, bh0); + mid = (mid + Math.imul(ah7, bl0)) | 0; + hi = Math.imul(ah7, bh0); + lo = (lo + Math.imul(al6, bl1)) | 0; + mid = (mid + Math.imul(al6, bh1)) | 0; + mid = (mid + Math.imul(ah6, bl1)) | 0; + hi = (hi + Math.imul(ah6, bh1)) | 0; + lo = (lo + Math.imul(al5, bl2)) | 0; + mid = (mid + Math.imul(al5, bh2)) | 0; + mid = (mid + Math.imul(ah5, bl2)) | 0; + hi = (hi + Math.imul(ah5, bh2)) | 0; + lo = (lo + Math.imul(al4, bl3)) | 0; + mid = (mid + Math.imul(al4, bh3)) | 0; + mid = (mid + Math.imul(ah4, bl3)) | 0; + hi = (hi + Math.imul(ah4, bh3)) | 0; + lo = (lo + Math.imul(al3, bl4)) | 0; + mid = (mid + Math.imul(al3, bh4)) | 0; + mid = (mid + Math.imul(ah3, bl4)) | 0; + hi = (hi + Math.imul(ah3, bh4)) | 0; + lo = (lo + Math.imul(al2, bl5)) | 0; + mid = (mid + Math.imul(al2, bh5)) | 0; + mid = (mid + Math.imul(ah2, bl5)) | 0; + hi = (hi + Math.imul(ah2, bh5)) | 0; + lo = (lo + Math.imul(al1, bl6)) | 0; + mid = (mid + Math.imul(al1, bh6)) | 0; + mid = (mid + Math.imul(ah1, bl6)) | 0; + hi = (hi + Math.imul(ah1, bh6)) | 0; + lo = (lo + Math.imul(al0, bl7)) | 0; + mid = (mid + Math.imul(al0, bh7)) | 0; + mid = (mid + Math.imul(ah0, bl7)) | 0; + hi = (hi + Math.imul(ah0, bh7)) | 0; + var w7 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w7 >>> 26)) | 0; + w7 &= 0x3ffffff; + /* k = 8 */ + lo = Math.imul(al8, bl0); + mid = Math.imul(al8, bh0); + mid = (mid + Math.imul(ah8, bl0)) | 0; + hi = Math.imul(ah8, bh0); + lo = (lo + Math.imul(al7, bl1)) | 0; + mid = (mid + Math.imul(al7, bh1)) | 0; + mid = (mid + Math.imul(ah7, bl1)) | 0; + hi = (hi + Math.imul(ah7, bh1)) | 0; + lo = (lo + Math.imul(al6, bl2)) | 0; + mid = (mid + Math.imul(al6, bh2)) | 0; + mid = (mid + Math.imul(ah6, bl2)) | 0; + hi = (hi + Math.imul(ah6, bh2)) | 0; + lo = (lo + Math.imul(al5, bl3)) | 0; + mid = (mid + Math.imul(al5, bh3)) | 0; + mid = (mid + Math.imul(ah5, bl3)) | 0; + hi = (hi + Math.imul(ah5, bh3)) | 0; + lo = (lo + Math.imul(al4, bl4)) | 0; + mid = (mid + Math.imul(al4, bh4)) | 0; + mid = (mid + Math.imul(ah4, bl4)) | 0; + hi = (hi + Math.imul(ah4, bh4)) | 0; + lo = (lo + Math.imul(al3, bl5)) | 0; + mid = (mid + Math.imul(al3, bh5)) | 0; + mid = (mid + Math.imul(ah3, bl5)) | 0; + hi = (hi + Math.imul(ah3, bh5)) | 0; + lo = (lo + Math.imul(al2, bl6)) | 0; + mid = (mid + Math.imul(al2, bh6)) | 0; + mid = (mid + Math.imul(ah2, bl6)) | 0; + hi = (hi + Math.imul(ah2, bh6)) | 0; + lo = (lo + Math.imul(al1, bl7)) | 0; + mid = (mid + Math.imul(al1, bh7)) | 0; + mid = (mid + Math.imul(ah1, bl7)) | 0; + hi = (hi + Math.imul(ah1, bh7)) | 0; + lo = (lo + Math.imul(al0, bl8)) | 0; + mid = (mid + Math.imul(al0, bh8)) | 0; + mid = (mid + Math.imul(ah0, bl8)) | 0; + hi = (hi + Math.imul(ah0, bh8)) | 0; + var w8 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w8 >>> 26)) | 0; + w8 &= 0x3ffffff; + /* k = 9 */ + lo = Math.imul(al9, bl0); + mid = Math.imul(al9, bh0); + mid = (mid + Math.imul(ah9, bl0)) | 0; + hi = Math.imul(ah9, bh0); + lo = (lo + Math.imul(al8, bl1)) | 0; + mid = (mid + Math.imul(al8, bh1)) | 0; + mid = (mid + Math.imul(ah8, bl1)) | 0; + hi = (hi + Math.imul(ah8, bh1)) | 0; + lo = (lo + Math.imul(al7, bl2)) | 0; + mid = (mid + Math.imul(al7, bh2)) | 0; + mid = (mid + Math.imul(ah7, bl2)) | 0; + hi = (hi + Math.imul(ah7, bh2)) | 0; + lo = (lo + Math.imul(al6, bl3)) | 0; + mid = (mid + Math.imul(al6, bh3)) | 0; + mid = (mid + Math.imul(ah6, bl3)) | 0; + hi = (hi + Math.imul(ah6, bh3)) | 0; + lo = (lo + Math.imul(al5, bl4)) | 0; + mid = (mid + Math.imul(al5, bh4)) | 0; + mid = (mid + Math.imul(ah5, bl4)) | 0; + hi = (hi + Math.imul(ah5, bh4)) | 0; + lo = (lo + Math.imul(al4, bl5)) | 0; + mid = (mid + Math.imul(al4, bh5)) | 0; + mid = (mid + Math.imul(ah4, bl5)) | 0; + hi = (hi + Math.imul(ah4, bh5)) | 0; + lo = (lo + Math.imul(al3, bl6)) | 0; + mid = (mid + Math.imul(al3, bh6)) | 0; + mid = (mid + Math.imul(ah3, bl6)) | 0; + hi = (hi + Math.imul(ah3, bh6)) | 0; + lo = (lo + Math.imul(al2, bl7)) | 0; + mid = (mid + Math.imul(al2, bh7)) | 0; + mid = (mid + Math.imul(ah2, bl7)) | 0; + hi = (hi + Math.imul(ah2, bh7)) | 0; + lo = (lo + Math.imul(al1, bl8)) | 0; + mid = (mid + Math.imul(al1, bh8)) | 0; + mid = (mid + Math.imul(ah1, bl8)) | 0; + hi = (hi + Math.imul(ah1, bh8)) | 0; + lo = (lo + Math.imul(al0, bl9)) | 0; + mid = (mid + Math.imul(al0, bh9)) | 0; + mid = (mid + Math.imul(ah0, bl9)) | 0; + hi = (hi + Math.imul(ah0, bh9)) | 0; + var w9 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w9 >>> 26)) | 0; + w9 &= 0x3ffffff; + /* k = 10 */ + lo = Math.imul(al9, bl1); + mid = Math.imul(al9, bh1); + mid = (mid + Math.imul(ah9, bl1)) | 0; + hi = Math.imul(ah9, bh1); + lo = (lo + Math.imul(al8, bl2)) | 0; + mid = (mid + Math.imul(al8, bh2)) | 0; + mid = (mid + Math.imul(ah8, bl2)) | 0; + hi = (hi + Math.imul(ah8, bh2)) | 0; + lo = (lo + Math.imul(al7, bl3)) | 0; + mid = (mid + Math.imul(al7, bh3)) | 0; + mid = (mid + Math.imul(ah7, bl3)) | 0; + hi = (hi + Math.imul(ah7, bh3)) | 0; + lo = (lo + Math.imul(al6, bl4)) | 0; + mid = (mid + Math.imul(al6, bh4)) | 0; + mid = (mid + Math.imul(ah6, bl4)) | 0; + hi = (hi + Math.imul(ah6, bh4)) | 0; + lo = (lo + Math.imul(al5, bl5)) | 0; + mid = (mid + Math.imul(al5, bh5)) | 0; + mid = (mid + Math.imul(ah5, bl5)) | 0; + hi = (hi + Math.imul(ah5, bh5)) | 0; + lo = (lo + Math.imul(al4, bl6)) | 0; + mid = (mid + Math.imul(al4, bh6)) | 0; + mid = (mid + Math.imul(ah4, bl6)) | 0; + hi = (hi + Math.imul(ah4, bh6)) | 0; + lo = (lo + Math.imul(al3, bl7)) | 0; + mid = (mid + Math.imul(al3, bh7)) | 0; + mid = (mid + Math.imul(ah3, bl7)) | 0; + hi = (hi + Math.imul(ah3, bh7)) | 0; + lo = (lo + Math.imul(al2, bl8)) | 0; + mid = (mid + Math.imul(al2, bh8)) | 0; + mid = (mid + Math.imul(ah2, bl8)) | 0; + hi = (hi + Math.imul(ah2, bh8)) | 0; + lo = (lo + Math.imul(al1, bl9)) | 0; + mid = (mid + Math.imul(al1, bh9)) | 0; + mid = (mid + Math.imul(ah1, bl9)) | 0; + hi = (hi + Math.imul(ah1, bh9)) | 0; + var w10 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w10 >>> 26)) | 0; + w10 &= 0x3ffffff; + /* k = 11 */ + lo = Math.imul(al9, bl2); + mid = Math.imul(al9, bh2); + mid = (mid + Math.imul(ah9, bl2)) | 0; + hi = Math.imul(ah9, bh2); + lo = (lo + Math.imul(al8, bl3)) | 0; + mid = (mid + Math.imul(al8, bh3)) | 0; + mid = (mid + Math.imul(ah8, bl3)) | 0; + hi = (hi + Math.imul(ah8, bh3)) | 0; + lo = (lo + Math.imul(al7, bl4)) | 0; + mid = (mid + Math.imul(al7, bh4)) | 0; + mid = (mid + Math.imul(ah7, bl4)) | 0; + hi = (hi + Math.imul(ah7, bh4)) | 0; + lo = (lo + Math.imul(al6, bl5)) | 0; + mid = (mid + Math.imul(al6, bh5)) | 0; + mid = (mid + Math.imul(ah6, bl5)) | 0; + hi = (hi + Math.imul(ah6, bh5)) | 0; + lo = (lo + Math.imul(al5, bl6)) | 0; + mid = (mid + Math.imul(al5, bh6)) | 0; + mid = (mid + Math.imul(ah5, bl6)) | 0; + hi = (hi + Math.imul(ah5, bh6)) | 0; + lo = (lo + Math.imul(al4, bl7)) | 0; + mid = (mid + Math.imul(al4, bh7)) | 0; + mid = (mid + Math.imul(ah4, bl7)) | 0; + hi = (hi + Math.imul(ah4, bh7)) | 0; + lo = (lo + Math.imul(al3, bl8)) | 0; + mid = (mid + Math.imul(al3, bh8)) | 0; + mid = (mid + Math.imul(ah3, bl8)) | 0; + hi = (hi + Math.imul(ah3, bh8)) | 0; + lo = (lo + Math.imul(al2, bl9)) | 0; + mid = (mid + Math.imul(al2, bh9)) | 0; + mid = (mid + Math.imul(ah2, bl9)) | 0; + hi = (hi + Math.imul(ah2, bh9)) | 0; + var w11 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w11 >>> 26)) | 0; + w11 &= 0x3ffffff; + /* k = 12 */ + lo = Math.imul(al9, bl3); + mid = Math.imul(al9, bh3); + mid = (mid + Math.imul(ah9, bl3)) | 0; + hi = Math.imul(ah9, bh3); + lo = (lo + Math.imul(al8, bl4)) | 0; + mid = (mid + Math.imul(al8, bh4)) | 0; + mid = (mid + Math.imul(ah8, bl4)) | 0; + hi = (hi + Math.imul(ah8, bh4)) | 0; + lo = (lo + Math.imul(al7, bl5)) | 0; + mid = (mid + Math.imul(al7, bh5)) | 0; + mid = (mid + Math.imul(ah7, bl5)) | 0; + hi = (hi + Math.imul(ah7, bh5)) | 0; + lo = (lo + Math.imul(al6, bl6)) | 0; + mid = (mid + Math.imul(al6, bh6)) | 0; + mid = (mid + Math.imul(ah6, bl6)) | 0; + hi = (hi + Math.imul(ah6, bh6)) | 0; + lo = (lo + Math.imul(al5, bl7)) | 0; + mid = (mid + Math.imul(al5, bh7)) | 0; + mid = (mid + Math.imul(ah5, bl7)) | 0; + hi = (hi + Math.imul(ah5, bh7)) | 0; + lo = (lo + Math.imul(al4, bl8)) | 0; + mid = (mid + Math.imul(al4, bh8)) | 0; + mid = (mid + Math.imul(ah4, bl8)) | 0; + hi = (hi + Math.imul(ah4, bh8)) | 0; + lo = (lo + Math.imul(al3, bl9)) | 0; + mid = (mid + Math.imul(al3, bh9)) | 0; + mid = (mid + Math.imul(ah3, bl9)) | 0; + hi = (hi + Math.imul(ah3, bh9)) | 0; + var w12 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w12 >>> 26)) | 0; + w12 &= 0x3ffffff; + /* k = 13 */ + lo = Math.imul(al9, bl4); + mid = Math.imul(al9, bh4); + mid = (mid + Math.imul(ah9, bl4)) | 0; + hi = Math.imul(ah9, bh4); + lo = (lo + Math.imul(al8, bl5)) | 0; + mid = (mid + Math.imul(al8, bh5)) | 0; + mid = (mid + Math.imul(ah8, bl5)) | 0; + hi = (hi + Math.imul(ah8, bh5)) | 0; + lo = (lo + Math.imul(al7, bl6)) | 0; + mid = (mid + Math.imul(al7, bh6)) | 0; + mid = (mid + Math.imul(ah7, bl6)) | 0; + hi = (hi + Math.imul(ah7, bh6)) | 0; + lo = (lo + Math.imul(al6, bl7)) | 0; + mid = (mid + Math.imul(al6, bh7)) | 0; + mid = (mid + Math.imul(ah6, bl7)) | 0; + hi = (hi + Math.imul(ah6, bh7)) | 0; + lo = (lo + Math.imul(al5, bl8)) | 0; + mid = (mid + Math.imul(al5, bh8)) | 0; + mid = (mid + Math.imul(ah5, bl8)) | 0; + hi = (hi + Math.imul(ah5, bh8)) | 0; + lo = (lo + Math.imul(al4, bl9)) | 0; + mid = (mid + Math.imul(al4, bh9)) | 0; + mid = (mid + Math.imul(ah4, bl9)) | 0; + hi = (hi + Math.imul(ah4, bh9)) | 0; + var w13 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w13 >>> 26)) | 0; + w13 &= 0x3ffffff; + /* k = 14 */ + lo = Math.imul(al9, bl5); + mid = Math.imul(al9, bh5); + mid = (mid + Math.imul(ah9, bl5)) | 0; + hi = Math.imul(ah9, bh5); + lo = (lo + Math.imul(al8, bl6)) | 0; + mid = (mid + Math.imul(al8, bh6)) | 0; + mid = (mid + Math.imul(ah8, bl6)) | 0; + hi = (hi + Math.imul(ah8, bh6)) | 0; + lo = (lo + Math.imul(al7, bl7)) | 0; + mid = (mid + Math.imul(al7, bh7)) | 0; + mid = (mid + Math.imul(ah7, bl7)) | 0; + hi = (hi + Math.imul(ah7, bh7)) | 0; + lo = (lo + Math.imul(al6, bl8)) | 0; + mid = (mid + Math.imul(al6, bh8)) | 0; + mid = (mid + Math.imul(ah6, bl8)) | 0; + hi = (hi + Math.imul(ah6, bh8)) | 0; + lo = (lo + Math.imul(al5, bl9)) | 0; + mid = (mid + Math.imul(al5, bh9)) | 0; + mid = (mid + Math.imul(ah5, bl9)) | 0; + hi = (hi + Math.imul(ah5, bh9)) | 0; + var w14 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w14 >>> 26)) | 0; + w14 &= 0x3ffffff; + /* k = 15 */ + lo = Math.imul(al9, bl6); + mid = Math.imul(al9, bh6); + mid = (mid + Math.imul(ah9, bl6)) | 0; + hi = Math.imul(ah9, bh6); + lo = (lo + Math.imul(al8, bl7)) | 0; + mid = (mid + Math.imul(al8, bh7)) | 0; + mid = (mid + Math.imul(ah8, bl7)) | 0; + hi = (hi + Math.imul(ah8, bh7)) | 0; + lo = (lo + Math.imul(al7, bl8)) | 0; + mid = (mid + Math.imul(al7, bh8)) | 0; + mid = (mid + Math.imul(ah7, bl8)) | 0; + hi = (hi + Math.imul(ah7, bh8)) | 0; + lo = (lo + Math.imul(al6, bl9)) | 0; + mid = (mid + Math.imul(al6, bh9)) | 0; + mid = (mid + Math.imul(ah6, bl9)) | 0; + hi = (hi + Math.imul(ah6, bh9)) | 0; + var w15 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w15 >>> 26)) | 0; + w15 &= 0x3ffffff; + /* k = 16 */ + lo = Math.imul(al9, bl7); + mid = Math.imul(al9, bh7); + mid = (mid + Math.imul(ah9, bl7)) | 0; + hi = Math.imul(ah9, bh7); + lo = (lo + Math.imul(al8, bl8)) | 0; + mid = (mid + Math.imul(al8, bh8)) | 0; + mid = (mid + Math.imul(ah8, bl8)) | 0; + hi = (hi + Math.imul(ah8, bh8)) | 0; + lo = (lo + Math.imul(al7, bl9)) | 0; + mid = (mid + Math.imul(al7, bh9)) | 0; + mid = (mid + Math.imul(ah7, bl9)) | 0; + hi = (hi + Math.imul(ah7, bh9)) | 0; + var w16 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w16 >>> 26)) | 0; + w16 &= 0x3ffffff; + /* k = 17 */ + lo = Math.imul(al9, bl8); + mid = Math.imul(al9, bh8); + mid = (mid + Math.imul(ah9, bl8)) | 0; + hi = Math.imul(ah9, bh8); + lo = (lo + Math.imul(al8, bl9)) | 0; + mid = (mid + Math.imul(al8, bh9)) | 0; + mid = (mid + Math.imul(ah8, bl9)) | 0; + hi = (hi + Math.imul(ah8, bh9)) | 0; + var w17 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w17 >>> 26)) | 0; + w17 &= 0x3ffffff; + /* k = 18 */ + lo = Math.imul(al9, bl9); + mid = Math.imul(al9, bh9); + mid = (mid + Math.imul(ah9, bl9)) | 0; + hi = Math.imul(ah9, bh9); + var w18 = (((c + lo) | 0) + ((mid & 0x1fff) << 13)) | 0; + c = (((hi + (mid >>> 13)) | 0) + (w18 >>> 26)) | 0; + w18 &= 0x3ffffff; + o[0] = w0; + o[1] = w1; + o[2] = w2; + o[3] = w3; + o[4] = w4; + o[5] = w5; + o[6] = w6; + o[7] = w7; + o[8] = w8; + o[9] = w9; + o[10] = w10; + o[11] = w11; + o[12] = w12; + o[13] = w13; + o[14] = w14; + o[15] = w15; + o[16] = w16; + o[17] = w17; + o[18] = w18; + if (c !== 0) { + o[19] = c; + out.length++; + } + return out; + }; + + // Polyfill comb + if (!Math.imul) { + comb10MulTo = smallMulTo; + } + + function bigMulTo (self, num, out) { + out.negative = num.negative ^ self.negative; + out.length = self.length + num.length; + + var carry = 0; + var hncarry = 0; + for (var k = 0; k < out.length - 1; k++) { + // Sum all words with the same `i + j = k` and accumulate `ncarry`, + // note that ncarry could be >= 0x3ffffff + var ncarry = hncarry; + hncarry = 0; + var rword = carry & 0x3ffffff; + var maxJ = Math.min(k, num.length - 1); + for (var j = Math.max(0, k - self.length + 1); j <= maxJ; j++) { + var i = k - j; + var a = self.words[i] | 0; + var b = num.words[j] | 0; + var r = a * b; + + var lo = r & 0x3ffffff; + ncarry = (ncarry + ((r / 0x4000000) | 0)) | 0; + lo = (lo + rword) | 0; + rword = lo & 0x3ffffff; + ncarry = (ncarry + (lo >>> 26)) | 0; + + hncarry += ncarry >>> 26; + ncarry &= 0x3ffffff; + } + out.words[k] = rword; + carry = ncarry; + ncarry = hncarry; + } + if (carry !== 0) { + out.words[k] = carry; + } else { + out.length--; + } + + return out.strip(); + } + + function jumboMulTo (self, num, out) { + var fftm = new FFTM(); + return fftm.mulp(self, num, out); + } + + BN.prototype.mulTo = function mulTo (num, out) { + var res; + var len = this.length + num.length; + if (this.length === 10 && num.length === 10) { + res = comb10MulTo(this, num, out); + } else if (len < 63) { + res = smallMulTo(this, num, out); + } else if (len < 1024) { + res = bigMulTo(this, num, out); + } else { + res = jumboMulTo(this, num, out); + } + + return res; + }; + + // Cooley-Tukey algorithm for FFT + // slightly revisited to rely on looping instead of recursion + + function FFTM (x, y) { + this.x = x; + this.y = y; + } + + FFTM.prototype.makeRBT = function makeRBT (N) { + var t = new Array(N); + var l = BN.prototype._countBits(N) - 1; + for (var i = 0; i < N; i++) { + t[i] = this.revBin(i, l, N); + } + + return t; + }; + + // Returns binary-reversed representation of `x` + FFTM.prototype.revBin = function revBin (x, l, N) { + if (x === 0 || x === N - 1) return x; + + var rb = 0; + for (var i = 0; i < l; i++) { + rb |= (x & 1) << (l - i - 1); + x >>= 1; + } + + return rb; + }; + + // Performs "tweedling" phase, therefore 'emulating' + // behaviour of the recursive algorithm + FFTM.prototype.permute = function permute (rbt, rws, iws, rtws, itws, N) { + for (var i = 0; i < N; i++) { + rtws[i] = rws[rbt[i]]; + itws[i] = iws[rbt[i]]; + } + }; + + FFTM.prototype.transform = function transform (rws, iws, rtws, itws, N, rbt) { + this.permute(rbt, rws, iws, rtws, itws, N); + + for (var s = 1; s < N; s <<= 1) { + var l = s << 1; + + var rtwdf = Math.cos(2 * Math.PI / l); + var itwdf = Math.sin(2 * Math.PI / l); + + for (var p = 0; p < N; p += l) { + var rtwdf_ = rtwdf; + var itwdf_ = itwdf; + + for (var j = 0; j < s; j++) { + var re = rtws[p + j]; + var ie = itws[p + j]; + + var ro = rtws[p + j + s]; + var io = itws[p + j + s]; + + var rx = rtwdf_ * ro - itwdf_ * io; + + io = rtwdf_ * io + itwdf_ * ro; + ro = rx; + + rtws[p + j] = re + ro; + itws[p + j] = ie + io; + + rtws[p + j + s] = re - ro; + itws[p + j + s] = ie - io; + + /* jshint maxdepth : false */ + if (j !== l) { + rx = rtwdf * rtwdf_ - itwdf * itwdf_; + + itwdf_ = rtwdf * itwdf_ + itwdf * rtwdf_; + rtwdf_ = rx; + } + } + } + } + }; + + FFTM.prototype.guessLen13b = function guessLen13b (n, m) { + var N = Math.max(m, n) | 1; + var odd = N & 1; + var i = 0; + for (N = N / 2 | 0; N; N = N >>> 1) { + i++; + } + + return 1 << i + 1 + odd; + }; + + FFTM.prototype.conjugate = function conjugate (rws, iws, N) { + if (N <= 1) return; + + for (var i = 0; i < N / 2; i++) { + var t = rws[i]; + + rws[i] = rws[N - i - 1]; + rws[N - i - 1] = t; + + t = iws[i]; + + iws[i] = -iws[N - i - 1]; + iws[N - i - 1] = -t; + } + }; + + FFTM.prototype.normalize13b = function normalize13b (ws, N) { + var carry = 0; + for (var i = 0; i < N / 2; i++) { + var w = Math.round(ws[2 * i + 1] / N) * 0x2000 + + Math.round(ws[2 * i] / N) + + carry; + + ws[i] = w & 0x3ffffff; + + if (w < 0x4000000) { + carry = 0; + } else { + carry = w / 0x4000000 | 0; + } + } + + return ws; + }; + + FFTM.prototype.convert13b = function convert13b (ws, len, rws, N) { + var carry = 0; + for (var i = 0; i < len; i++) { + carry = carry + (ws[i] | 0); + + rws[2 * i] = carry & 0x1fff; carry = carry >>> 13; + rws[2 * i + 1] = carry & 0x1fff; carry = carry >>> 13; + } + + // Pad with zeroes + for (i = 2 * len; i < N; ++i) { + rws[i] = 0; + } + + assert(carry === 0); + assert((carry & ~0x1fff) === 0); + }; + + FFTM.prototype.stub = function stub (N) { + var ph = new Array(N); + for (var i = 0; i < N; i++) { + ph[i] = 0; + } + + return ph; + }; + + FFTM.prototype.mulp = function mulp (x, y, out) { + var N = 2 * this.guessLen13b(x.length, y.length); + + var rbt = this.makeRBT(N); + + var _ = this.stub(N); + + var rws = new Array(N); + var rwst = new Array(N); + var iwst = new Array(N); + + var nrws = new Array(N); + var nrwst = new Array(N); + var niwst = new Array(N); + + var rmws = out.words; + rmws.length = N; + + this.convert13b(x.words, x.length, rws, N); + this.convert13b(y.words, y.length, nrws, N); + + this.transform(rws, _, rwst, iwst, N, rbt); + this.transform(nrws, _, nrwst, niwst, N, rbt); + + for (var i = 0; i < N; i++) { + var rx = rwst[i] * nrwst[i] - iwst[i] * niwst[i]; + iwst[i] = rwst[i] * niwst[i] + iwst[i] * nrwst[i]; + rwst[i] = rx; + } + + this.conjugate(rwst, iwst, N); + this.transform(rwst, iwst, rmws, _, N, rbt); + this.conjugate(rmws, _, N); + this.normalize13b(rmws, N); + + out.negative = x.negative ^ y.negative; + out.length = x.length + y.length; + return out.strip(); + }; + + // Multiply `this` by `num` + BN.prototype.mul = function mul (num) { + var out = new BN(null); + out.words = new Array(this.length + num.length); + return this.mulTo(num, out); + }; + + // Multiply employing FFT + BN.prototype.mulf = function mulf (num) { + var out = new BN(null); + out.words = new Array(this.length + num.length); + return jumboMulTo(this, num, out); + }; + + // In-place Multiplication + BN.prototype.imul = function imul (num) { + return this.clone().mulTo(num, this); + }; + + BN.prototype.imuln = function imuln (num) { + assert(typeof num === 'number'); + assert(num < 0x4000000); + + // Carry + var carry = 0; + for (var i = 0; i < this.length; i++) { + var w = (this.words[i] | 0) * num; + var lo = (w & 0x3ffffff) + (carry & 0x3ffffff); + carry >>= 26; + carry += (w / 0x4000000) | 0; + // NOTE: lo is 27bit maximum + carry += lo >>> 26; + this.words[i] = lo & 0x3ffffff; + } + + if (carry !== 0) { + this.words[i] = carry; + this.length++; + } + + return this; + }; + + BN.prototype.muln = function muln (num) { + return this.clone().imuln(num); + }; + + // `this` * `this` + BN.prototype.sqr = function sqr () { + return this.mul(this); + }; + + // `this` * `this` in-place + BN.prototype.isqr = function isqr () { + return this.imul(this.clone()); + }; + + // Math.pow(`this`, `num`) + BN.prototype.pow = function pow (num) { + var w = toBitArray(num); + if (w.length === 0) return new BN(1); + + // Skip leading zeroes + var res = this; + for (var i = 0; i < w.length; i++, res = res.sqr()) { + if (w[i] !== 0) break; + } + + if (++i < w.length) { + for (var q = res.sqr(); i < w.length; i++, q = q.sqr()) { + if (w[i] === 0) continue; + + res = res.mul(q); + } + } + + return res; + }; + + // Shift-left in-place + BN.prototype.iushln = function iushln (bits) { + assert(typeof bits === 'number' && bits >= 0); + var r = bits % 26; + var s = (bits - r) / 26; + var carryMask = (0x3ffffff >>> (26 - r)) << (26 - r); + var i; + + if (r !== 0) { + var carry = 0; + + for (i = 0; i < this.length; i++) { + var newCarry = this.words[i] & carryMask; + var c = ((this.words[i] | 0) - newCarry) << r; + this.words[i] = c | carry; + carry = newCarry >>> (26 - r); + } + + if (carry) { + this.words[i] = carry; + this.length++; + } + } + + if (s !== 0) { + for (i = this.length - 1; i >= 0; i--) { + this.words[i + s] = this.words[i]; + } + + for (i = 0; i < s; i++) { + this.words[i] = 0; + } + + this.length += s; + } + + return this.strip(); + }; + + BN.prototype.ishln = function ishln (bits) { + // TODO(indutny): implement me + assert(this.negative === 0); + return this.iushln(bits); + }; + + // Shift-right in-place + // NOTE: `hint` is a lowest bit before trailing zeroes + // NOTE: if `extended` is present - it will be filled with destroyed bits + BN.prototype.iushrn = function iushrn (bits, hint, extended) { + assert(typeof bits === 'number' && bits >= 0); + var h; + if (hint) { + h = (hint - (hint % 26)) / 26; + } else { + h = 0; + } + + var r = bits % 26; + var s = Math.min((bits - r) / 26, this.length); + var mask = 0x3ffffff ^ ((0x3ffffff >>> r) << r); + var maskedWords = extended; + + h -= s; + h = Math.max(0, h); + + // Extended mode, copy masked part + if (maskedWords) { + for (var i = 0; i < s; i++) { + maskedWords.words[i] = this.words[i]; + } + maskedWords.length = s; + } + + if (s === 0) { + // No-op, we should not move anything at all + } else if (this.length > s) { + this.length -= s; + for (i = 0; i < this.length; i++) { + this.words[i] = this.words[i + s]; + } + } else { + this.words[0] = 0; + this.length = 1; + } + + var carry = 0; + for (i = this.length - 1; i >= 0 && (carry !== 0 || i >= h); i--) { + var word = this.words[i] | 0; + this.words[i] = (carry << (26 - r)) | (word >>> r); + carry = word & mask; + } + + // Push carried bits as a mask + if (maskedWords && carry !== 0) { + maskedWords.words[maskedWords.length++] = carry; + } + + if (this.length === 0) { + this.words[0] = 0; + this.length = 1; + } + + return this.strip(); + }; + + BN.prototype.ishrn = function ishrn (bits, hint, extended) { + // TODO(indutny): implement me + assert(this.negative === 0); + return this.iushrn(bits, hint, extended); + }; + + // Shift-left + BN.prototype.shln = function shln (bits) { + return this.clone().ishln(bits); + }; + + BN.prototype.ushln = function ushln (bits) { + return this.clone().iushln(bits); + }; + + // Shift-right + BN.prototype.shrn = function shrn (bits) { + return this.clone().ishrn(bits); + }; + + BN.prototype.ushrn = function ushrn (bits) { + return this.clone().iushrn(bits); + }; + + // Test if n bit is set + BN.prototype.testn = function testn (bit) { + assert(typeof bit === 'number' && bit >= 0); + var r = bit % 26; + var s = (bit - r) / 26; + var q = 1 << r; + + // Fast case: bit is much higher than all existing words + if (this.length <= s) return false; + + // Check bit and return + var w = this.words[s]; + + return !!(w & q); + }; + + // Return only lowers bits of number (in-place) + BN.prototype.imaskn = function imaskn (bits) { + assert(typeof bits === 'number' && bits >= 0); + var r = bits % 26; + var s = (bits - r) / 26; + + assert(this.negative === 0, 'imaskn works only with positive numbers'); + + if (this.length <= s) { + return this; + } + + if (r !== 0) { + s++; + } + this.length = Math.min(s, this.length); + + if (r !== 0) { + var mask = 0x3ffffff ^ ((0x3ffffff >>> r) << r); + this.words[this.length - 1] &= mask; + } + + return this.strip(); + }; + + // Return only lowers bits of number + BN.prototype.maskn = function maskn (bits) { + return this.clone().imaskn(bits); + }; + + // Add plain number `num` to `this` + BN.prototype.iaddn = function iaddn (num) { + assert(typeof num === 'number'); + assert(num < 0x4000000); + if (num < 0) return this.isubn(-num); + + // Possible sign change + if (this.negative !== 0) { + if (this.length === 1 && (this.words[0] | 0) < num) { + this.words[0] = num - (this.words[0] | 0); + this.negative = 0; + return this; + } + + this.negative = 0; + this.isubn(num); + this.negative = 1; + return this; + } + + // Add without checks + return this._iaddn(num); + }; + + BN.prototype._iaddn = function _iaddn (num) { + this.words[0] += num; + + // Carry + for (var i = 0; i < this.length && this.words[i] >= 0x4000000; i++) { + this.words[i] -= 0x4000000; + if (i === this.length - 1) { + this.words[i + 1] = 1; + } else { + this.words[i + 1]++; + } + } + this.length = Math.max(this.length, i + 1); + + return this; + }; + + // Subtract plain number `num` from `this` + BN.prototype.isubn = function isubn (num) { + assert(typeof num === 'number'); + assert(num < 0x4000000); + if (num < 0) return this.iaddn(-num); + + if (this.negative !== 0) { + this.negative = 0; + this.iaddn(num); + this.negative = 1; + return this; + } + + this.words[0] -= num; + + if (this.length === 1 && this.words[0] < 0) { + this.words[0] = -this.words[0]; + this.negative = 1; + } else { + // Carry + for (var i = 0; i < this.length && this.words[i] < 0; i++) { + this.words[i] += 0x4000000; + this.words[i + 1] -= 1; + } + } + + return this.strip(); + }; + + BN.prototype.addn = function addn (num) { + return this.clone().iaddn(num); + }; + + BN.prototype.subn = function subn (num) { + return this.clone().isubn(num); + }; + + BN.prototype.iabs = function iabs () { + this.negative = 0; + + return this; + }; + + BN.prototype.abs = function abs () { + return this.clone().iabs(); + }; + + BN.prototype._ishlnsubmul = function _ishlnsubmul (num, mul, shift) { + var len = num.length + shift; + var i; + + this._expand(len); + + var w; + var carry = 0; + for (i = 0; i < num.length; i++) { + w = (this.words[i + shift] | 0) + carry; + var right = (num.words[i] | 0) * mul; + w -= right & 0x3ffffff; + carry = (w >> 26) - ((right / 0x4000000) | 0); + this.words[i + shift] = w & 0x3ffffff; + } + for (; i < this.length - shift; i++) { + w = (this.words[i + shift] | 0) + carry; + carry = w >> 26; + this.words[i + shift] = w & 0x3ffffff; + } + + if (carry === 0) return this.strip(); + + // Subtraction overflow + assert(carry === -1); + carry = 0; + for (i = 0; i < this.length; i++) { + w = -(this.words[i] | 0) + carry; + carry = w >> 26; + this.words[i] = w & 0x3ffffff; + } + this.negative = 1; + + return this.strip(); + }; + + BN.prototype._wordDiv = function _wordDiv (num, mode) { + var shift = this.length - num.length; + + var a = this.clone(); + var b = num; + + // Normalize + var bhi = b.words[b.length - 1] | 0; + var bhiBits = this._countBits(bhi); + shift = 26 - bhiBits; + if (shift !== 0) { + b = b.ushln(shift); + a.iushln(shift); + bhi = b.words[b.length - 1] | 0; + } + + // Initialize quotient + var m = a.length - b.length; + var q; + + if (mode !== 'mod') { + q = new BN(null); + q.length = m + 1; + q.words = new Array(q.length); + for (var i = 0; i < q.length; i++) { + q.words[i] = 0; + } + } + + var diff = a.clone()._ishlnsubmul(b, 1, m); + if (diff.negative === 0) { + a = diff; + if (q) { + q.words[m] = 1; + } + } + + for (var j = m - 1; j >= 0; j--) { + var qj = (a.words[b.length + j] | 0) * 0x4000000 + + (a.words[b.length + j - 1] | 0); + + // NOTE: (qj / bhi) is (0x3ffffff * 0x4000000 + 0x3ffffff) / 0x2000000 max + // (0x7ffffff) + qj = Math.min((qj / bhi) | 0, 0x3ffffff); + + a._ishlnsubmul(b, qj, j); + while (a.negative !== 0) { + qj--; + a.negative = 0; + a._ishlnsubmul(b, 1, j); + if (!a.isZero()) { + a.negative ^= 1; + } + } + if (q) { + q.words[j] = qj; + } + } + if (q) { + q.strip(); + } + a.strip(); + + // Denormalize + if (mode !== 'div' && shift !== 0) { + a.iushrn(shift); + } + + return { + div: q || null, + mod: a + }; + }; + + // NOTE: 1) `mode` can be set to `mod` to request mod only, + // to `div` to request div only, or be absent to + // request both div & mod + // 2) `positive` is true if unsigned mod is requested + BN.prototype.divmod = function divmod (num, mode, positive) { + assert(!num.isZero()); + + if (this.isZero()) { + return { + div: new BN(0), + mod: new BN(0) + }; + } + + var div, mod, res; + if (this.negative !== 0 && num.negative === 0) { + res = this.neg().divmod(num, mode); + + if (mode !== 'mod') { + div = res.div.neg(); + } + + if (mode !== 'div') { + mod = res.mod.neg(); + if (positive && mod.negative !== 0) { + mod.iadd(num); + } + } + + return { + div: div, + mod: mod + }; + } + + if (this.negative === 0 && num.negative !== 0) { + res = this.divmod(num.neg(), mode); + + if (mode !== 'mod') { + div = res.div.neg(); + } + + return { + div: div, + mod: res.mod + }; + } + + if ((this.negative & num.negative) !== 0) { + res = this.neg().divmod(num.neg(), mode); + + if (mode !== 'div') { + mod = res.mod.neg(); + if (positive && mod.negative !== 0) { + mod.isub(num); + } + } + + return { + div: res.div, + mod: mod + }; + } + + // Both numbers are positive at this point + + // Strip both numbers to approximate shift value + if (num.length > this.length || this.cmp(num) < 0) { + return { + div: new BN(0), + mod: this + }; + } + + // Very short reduction + if (num.length === 1) { + if (mode === 'div') { + return { + div: this.divn(num.words[0]), + mod: null + }; + } + + if (mode === 'mod') { + return { + div: null, + mod: new BN(this.modn(num.words[0])) + }; + } + + return { + div: this.divn(num.words[0]), + mod: new BN(this.modn(num.words[0])) + }; + } + + return this._wordDiv(num, mode); + }; + + // Find `this` / `num` + BN.prototype.div = function div (num) { + return this.divmod(num, 'div', false).div; + }; + + // Find `this` % `num` + BN.prototype.mod = function mod (num) { + return this.divmod(num, 'mod', false).mod; + }; + + BN.prototype.umod = function umod (num) { + return this.divmod(num, 'mod', true).mod; + }; + + // Find Round(`this` / `num`) + BN.prototype.divRound = function divRound (num) { + var dm = this.divmod(num); + + // Fast case - exact division + if (dm.mod.isZero()) return dm.div; + + var mod = dm.div.negative !== 0 ? dm.mod.isub(num) : dm.mod; + + var half = num.ushrn(1); + var r2 = num.andln(1); + var cmp = mod.cmp(half); + + // Round down + if (cmp < 0 || r2 === 1 && cmp === 0) return dm.div; + + // Round up + return dm.div.negative !== 0 ? dm.div.isubn(1) : dm.div.iaddn(1); + }; + + BN.prototype.modn = function modn (num) { + assert(num <= 0x3ffffff); + var p = (1 << 26) % num; + + var acc = 0; + for (var i = this.length - 1; i >= 0; i--) { + acc = (p * acc + (this.words[i] | 0)) % num; + } + + return acc; + }; + + // In-place division by number + BN.prototype.idivn = function idivn (num) { + assert(num <= 0x3ffffff); + + var carry = 0; + for (var i = this.length - 1; i >= 0; i--) { + var w = (this.words[i] | 0) + carry * 0x4000000; + this.words[i] = (w / num) | 0; + carry = w % num; + } + + return this.strip(); + }; + + BN.prototype.divn = function divn (num) { + return this.clone().idivn(num); + }; + + BN.prototype.egcd = function egcd (p) { + assert(p.negative === 0); + assert(!p.isZero()); + + var x = this; + var y = p.clone(); + + if (x.negative !== 0) { + x = x.umod(p); + } else { + x = x.clone(); + } + + // A * x + B * y = x + var A = new BN(1); + var B = new BN(0); + + // C * x + D * y = y + var C = new BN(0); + var D = new BN(1); + + var g = 0; + + while (x.isEven() && y.isEven()) { + x.iushrn(1); + y.iushrn(1); + ++g; + } + + var yp = y.clone(); + var xp = x.clone(); + + while (!x.isZero()) { + for (var i = 0, im = 1; (x.words[0] & im) === 0 && i < 26; ++i, im <<= 1); + if (i > 0) { + x.iushrn(i); + while (i-- > 0) { + if (A.isOdd() || B.isOdd()) { + A.iadd(yp); + B.isub(xp); + } + + A.iushrn(1); + B.iushrn(1); + } + } + + for (var j = 0, jm = 1; (y.words[0] & jm) === 0 && j < 26; ++j, jm <<= 1); + if (j > 0) { + y.iushrn(j); + while (j-- > 0) { + if (C.isOdd() || D.isOdd()) { + C.iadd(yp); + D.isub(xp); + } + + C.iushrn(1); + D.iushrn(1); + } + } + + if (x.cmp(y) >= 0) { + x.isub(y); + A.isub(C); + B.isub(D); + } else { + y.isub(x); + C.isub(A); + D.isub(B); + } + } + + return { + a: C, + b: D, + gcd: y.iushln(g) + }; + }; + + // This is reduced incarnation of the binary EEA + // above, designated to invert members of the + // _prime_ fields F(p) at a maximal speed + BN.prototype._invmp = function _invmp (p) { + assert(p.negative === 0); + assert(!p.isZero()); + + var a = this; + var b = p.clone(); + + if (a.negative !== 0) { + a = a.umod(p); + } else { + a = a.clone(); + } + + var x1 = new BN(1); + var x2 = new BN(0); + + var delta = b.clone(); + + while (a.cmpn(1) > 0 && b.cmpn(1) > 0) { + for (var i = 0, im = 1; (a.words[0] & im) === 0 && i < 26; ++i, im <<= 1); + if (i > 0) { + a.iushrn(i); + while (i-- > 0) { + if (x1.isOdd()) { + x1.iadd(delta); + } + + x1.iushrn(1); + } + } + + for (var j = 0, jm = 1; (b.words[0] & jm) === 0 && j < 26; ++j, jm <<= 1); + if (j > 0) { + b.iushrn(j); + while (j-- > 0) { + if (x2.isOdd()) { + x2.iadd(delta); + } + + x2.iushrn(1); + } + } + + if (a.cmp(b) >= 0) { + a.isub(b); + x1.isub(x2); + } else { + b.isub(a); + x2.isub(x1); + } + } + + var res; + if (a.cmpn(1) === 0) { + res = x1; + } else { + res = x2; + } + + if (res.cmpn(0) < 0) { + res.iadd(p); + } + + return res; + }; + + BN.prototype.gcd = function gcd (num) { + if (this.isZero()) return num.abs(); + if (num.isZero()) return this.abs(); + + var a = this.clone(); + var b = num.clone(); + a.negative = 0; + b.negative = 0; + + // Remove common factor of two + for (var shift = 0; a.isEven() && b.isEven(); shift++) { + a.iushrn(1); + b.iushrn(1); + } + + do { + while (a.isEven()) { + a.iushrn(1); + } + while (b.isEven()) { + b.iushrn(1); + } + + var r = a.cmp(b); + if (r < 0) { + // Swap `a` and `b` to make `a` always bigger than `b` + var t = a; + a = b; + b = t; + } else if (r === 0 || b.cmpn(1) === 0) { + break; + } + + a.isub(b); + } while (true); + + return b.iushln(shift); + }; + + // Invert number in the field F(num) + BN.prototype.invm = function invm (num) { + return this.egcd(num).a.umod(num); + }; + + BN.prototype.isEven = function isEven () { + return (this.words[0] & 1) === 0; + }; + + BN.prototype.isOdd = function isOdd () { + return (this.words[0] & 1) === 1; + }; + + // And first word and num + BN.prototype.andln = function andln (num) { + return this.words[0] & num; + }; + + // Increment at the bit position in-line + BN.prototype.bincn = function bincn (bit) { + assert(typeof bit === 'number'); + var r = bit % 26; + var s = (bit - r) / 26; + var q = 1 << r; + + // Fast case: bit is much higher than all existing words + if (this.length <= s) { + this._expand(s + 1); + this.words[s] |= q; + return this; + } + + // Add bit and propagate, if needed + var carry = q; + for (var i = s; carry !== 0 && i < this.length; i++) { + var w = this.words[i] | 0; + w += carry; + carry = w >>> 26; + w &= 0x3ffffff; + this.words[i] = w; + } + if (carry !== 0) { + this.words[i] = carry; + this.length++; + } + return this; + }; + + BN.prototype.isZero = function isZero () { + return this.length === 1 && this.words[0] === 0; + }; + + BN.prototype.cmpn = function cmpn (num) { + var negative = num < 0; + + if (this.negative !== 0 && !negative) return -1; + if (this.negative === 0 && negative) return 1; + + this.strip(); + + var res; + if (this.length > 1) { + res = 1; + } else { + if (negative) { + num = -num; + } + + assert(num <= 0x3ffffff, 'Number is too big'); + + var w = this.words[0] | 0; + res = w === num ? 0 : w < num ? -1 : 1; + } + if (this.negative !== 0) return -res | 0; + return res; + }; + + // Compare two numbers and return: + // 1 - if `this` > `num` + // 0 - if `this` == `num` + // -1 - if `this` < `num` + BN.prototype.cmp = function cmp (num) { + if (this.negative !== 0 && num.negative === 0) return -1; + if (this.negative === 0 && num.negative !== 0) return 1; + + var res = this.ucmp(num); + if (this.negative !== 0) return -res | 0; + return res; + }; + + // Unsigned comparison + BN.prototype.ucmp = function ucmp (num) { + // At this point both numbers have the same sign + if (this.length > num.length) return 1; + if (this.length < num.length) return -1; + + var res = 0; + for (var i = this.length - 1; i >= 0; i--) { + var a = this.words[i] | 0; + var b = num.words[i] | 0; + + if (a === b) continue; + if (a < b) { + res = -1; + } else if (a > b) { + res = 1; + } + break; + } + return res; + }; + + BN.prototype.gtn = function gtn (num) { + return this.cmpn(num) === 1; + }; + + BN.prototype.gt = function gt (num) { + return this.cmp(num) === 1; + }; + + BN.prototype.gten = function gten (num) { + return this.cmpn(num) >= 0; + }; + + BN.prototype.gte = function gte (num) { + return this.cmp(num) >= 0; + }; + + BN.prototype.ltn = function ltn (num) { + return this.cmpn(num) === -1; + }; + + BN.prototype.lt = function lt (num) { + return this.cmp(num) === -1; + }; + + BN.prototype.lten = function lten (num) { + return this.cmpn(num) <= 0; + }; + + BN.prototype.lte = function lte (num) { + return this.cmp(num) <= 0; + }; + + BN.prototype.eqn = function eqn (num) { + return this.cmpn(num) === 0; + }; + + BN.prototype.eq = function eq (num) { + return this.cmp(num) === 0; + }; + + // + // A reduce context, could be using montgomery or something better, depending + // on the `m` itself. + // + BN.red = function red (num) { + return new Red(num); + }; + + BN.prototype.toRed = function toRed (ctx) { + assert(!this.red, 'Already a number in reduction context'); + assert(this.negative === 0, 'red works only with positives'); + return ctx.convertTo(this)._forceRed(ctx); + }; + + BN.prototype.fromRed = function fromRed () { + assert(this.red, 'fromRed works only with numbers in reduction context'); + return this.red.convertFrom(this); + }; + + BN.prototype._forceRed = function _forceRed (ctx) { + this.red = ctx; + return this; + }; + + BN.prototype.forceRed = function forceRed (ctx) { + assert(!this.red, 'Already a number in reduction context'); + return this._forceRed(ctx); + }; + + BN.prototype.redAdd = function redAdd (num) { + assert(this.red, 'redAdd works only with red numbers'); + return this.red.add(this, num); + }; + + BN.prototype.redIAdd = function redIAdd (num) { + assert(this.red, 'redIAdd works only with red numbers'); + return this.red.iadd(this, num); + }; + + BN.prototype.redSub = function redSub (num) { + assert(this.red, 'redSub works only with red numbers'); + return this.red.sub(this, num); + }; + + BN.prototype.redISub = function redISub (num) { + assert(this.red, 'redISub works only with red numbers'); + return this.red.isub(this, num); + }; + + BN.prototype.redShl = function redShl (num) { + assert(this.red, 'redShl works only with red numbers'); + return this.red.shl(this, num); + }; + + BN.prototype.redMul = function redMul (num) { + assert(this.red, 'redMul works only with red numbers'); + this.red._verify2(this, num); + return this.red.mul(this, num); + }; + + BN.prototype.redIMul = function redIMul (num) { + assert(this.red, 'redMul works only with red numbers'); + this.red._verify2(this, num); + return this.red.imul(this, num); + }; + + BN.prototype.redSqr = function redSqr () { + assert(this.red, 'redSqr works only with red numbers'); + this.red._verify1(this); + return this.red.sqr(this); + }; + + BN.prototype.redISqr = function redISqr () { + assert(this.red, 'redISqr works only with red numbers'); + this.red._verify1(this); + return this.red.isqr(this); + }; + + // Square root over p + BN.prototype.redSqrt = function redSqrt () { + assert(this.red, 'redSqrt works only with red numbers'); + this.red._verify1(this); + return this.red.sqrt(this); + }; + + BN.prototype.redInvm = function redInvm () { + assert(this.red, 'redInvm works only with red numbers'); + this.red._verify1(this); + return this.red.invm(this); + }; + + // Return negative clone of `this` % `red modulo` + BN.prototype.redNeg = function redNeg () { + assert(this.red, 'redNeg works only with red numbers'); + this.red._verify1(this); + return this.red.neg(this); + }; + + BN.prototype.redPow = function redPow (num) { + assert(this.red && !num.red, 'redPow(normalNum)'); + this.red._verify1(this); + return this.red.pow(this, num); + }; + + // Prime numbers with efficient reduction + var primes = { + k256: null, + p224: null, + p192: null, + p25519: null + }; + + // Pseudo-Mersenne prime + function MPrime (name, p) { + // P = 2 ^ N - K + this.name = name; + this.p = new BN(p, 16); + this.n = this.p.bitLength(); + this.k = new BN(1).iushln(this.n).isub(this.p); + + this.tmp = this._tmp(); + } + + MPrime.prototype._tmp = function _tmp () { + var tmp = new BN(null); + tmp.words = new Array(Math.ceil(this.n / 13)); + return tmp; + }; + + MPrime.prototype.ireduce = function ireduce (num) { + // Assumes that `num` is less than `P^2` + // num = HI * (2 ^ N - K) + HI * K + LO = HI * K + LO (mod P) + var r = num; + var rlen; + + do { + this.split(r, this.tmp); + r = this.imulK(r); + r = r.iadd(this.tmp); + rlen = r.bitLength(); + } while (rlen > this.n); + + var cmp = rlen < this.n ? -1 : r.ucmp(this.p); + if (cmp === 0) { + r.words[0] = 0; + r.length = 1; + } else if (cmp > 0) { + r.isub(this.p); + } else { + r.strip(); + } + + return r; + }; + + MPrime.prototype.split = function split (input, out) { + input.iushrn(this.n, 0, out); + }; + + MPrime.prototype.imulK = function imulK (num) { + return num.imul(this.k); + }; + + function K256 () { + MPrime.call( + this, + 'k256', + 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff fffffffe fffffc2f'); + } + inherits(K256, MPrime); + + K256.prototype.split = function split (input, output) { + // 256 = 9 * 26 + 22 + var mask = 0x3fffff; + + var outLen = Math.min(input.length, 9); + for (var i = 0; i < outLen; i++) { + output.words[i] = input.words[i]; + } + output.length = outLen; + + if (input.length <= 9) { + input.words[0] = 0; + input.length = 1; + return; + } + + // Shift by 9 limbs + var prev = input.words[9]; + output.words[output.length++] = prev & mask; + + for (i = 10; i < input.length; i++) { + var next = input.words[i] | 0; + input.words[i - 10] = ((next & mask) << 4) | (prev >>> 22); + prev = next; + } + prev >>>= 22; + input.words[i - 10] = prev; + if (prev === 0 && input.length > 10) { + input.length -= 10; + } else { + input.length -= 9; + } + }; + + K256.prototype.imulK = function imulK (num) { + // K = 0x1000003d1 = [ 0x40, 0x3d1 ] + num.words[num.length] = 0; + num.words[num.length + 1] = 0; + num.length += 2; + + // bounded at: 0x40 * 0x3ffffff + 0x3d0 = 0x100000390 + var lo = 0; + for (var i = 0; i < num.length; i++) { + var w = num.words[i] | 0; + lo += w * 0x3d1; + num.words[i] = lo & 0x3ffffff; + lo = w * 0x40 + ((lo / 0x4000000) | 0); + } + + // Fast length reduction + if (num.words[num.length - 1] === 0) { + num.length--; + if (num.words[num.length - 1] === 0) { + num.length--; + } + } + return num; + }; + + function P224 () { + MPrime.call( + this, + 'p224', + 'ffffffff ffffffff ffffffff ffffffff 00000000 00000000 00000001'); + } + inherits(P224, MPrime); + + function P192 () { + MPrime.call( + this, + 'p192', + 'ffffffff ffffffff ffffffff fffffffe ffffffff ffffffff'); + } + inherits(P192, MPrime); + + function P25519 () { + // 2 ^ 255 - 19 + MPrime.call( + this, + '25519', + '7fffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffed'); + } + inherits(P25519, MPrime); + + P25519.prototype.imulK = function imulK (num) { + // K = 0x13 + var carry = 0; + for (var i = 0; i < num.length; i++) { + var hi = (num.words[i] | 0) * 0x13 + carry; + var lo = hi & 0x3ffffff; + hi >>>= 26; + + num.words[i] = lo; + carry = hi; + } + if (carry !== 0) { + num.words[num.length++] = carry; + } + return num; + }; + + // Exported mostly for testing purposes, use plain name instead + BN._prime = function prime (name) { + // Cached version of prime + if (primes[name]) return primes[name]; + + var prime; + if (name === 'k256') { + prime = new K256(); + } else if (name === 'p224') { + prime = new P224(); + } else if (name === 'p192') { + prime = new P192(); + } else if (name === 'p25519') { + prime = new P25519(); + } else { + throw new Error('Unknown prime ' + name); + } + primes[name] = prime; + + return prime; + }; + + // + // Base reduction engine + // + function Red (m) { + if (typeof m === 'string') { + var prime = BN._prime(m); + this.m = prime.p; + this.prime = prime; + } else { + assert(m.gtn(1), 'modulus must be greater than 1'); + this.m = m; + this.prime = null; + } + } + + Red.prototype._verify1 = function _verify1 (a) { + assert(a.negative === 0, 'red works only with positives'); + assert(a.red, 'red works only with red numbers'); + }; + + Red.prototype._verify2 = function _verify2 (a, b) { + assert((a.negative | b.negative) === 0, 'red works only with positives'); + assert(a.red && a.red === b.red, + 'red works only with red numbers'); + }; + + Red.prototype.imod = function imod (a) { + if (this.prime) return this.prime.ireduce(a)._forceRed(this); + return a.umod(this.m)._forceRed(this); + }; + + Red.prototype.neg = function neg (a) { + if (a.isZero()) { + return a.clone(); + } + + return this.m.sub(a)._forceRed(this); + }; + + Red.prototype.add = function add (a, b) { + this._verify2(a, b); + + var res = a.add(b); + if (res.cmp(this.m) >= 0) { + res.isub(this.m); + } + return res._forceRed(this); + }; + + Red.prototype.iadd = function iadd (a, b) { + this._verify2(a, b); + + var res = a.iadd(b); + if (res.cmp(this.m) >= 0) { + res.isub(this.m); + } + return res; + }; + + Red.prototype.sub = function sub (a, b) { + this._verify2(a, b); + + var res = a.sub(b); + if (res.cmpn(0) < 0) { + res.iadd(this.m); + } + return res._forceRed(this); + }; + + Red.prototype.isub = function isub (a, b) { + this._verify2(a, b); + + var res = a.isub(b); + if (res.cmpn(0) < 0) { + res.iadd(this.m); + } + return res; + }; + + Red.prototype.shl = function shl (a, num) { + this._verify1(a); + return this.imod(a.ushln(num)); + }; + + Red.prototype.imul = function imul (a, b) { + this._verify2(a, b); + return this.imod(a.imul(b)); + }; + + Red.prototype.mul = function mul (a, b) { + this._verify2(a, b); + return this.imod(a.mul(b)); + }; + + Red.prototype.isqr = function isqr (a) { + return this.imul(a, a.clone()); + }; + + Red.prototype.sqr = function sqr (a) { + return this.mul(a, a); + }; + + Red.prototype.sqrt = function sqrt (a) { + if (a.isZero()) return a.clone(); + + var mod3 = this.m.andln(3); + assert(mod3 % 2 === 1); + + // Fast case + if (mod3 === 3) { + var pow = this.m.add(new BN(1)).iushrn(2); + return this.pow(a, pow); + } + + // Tonelli-Shanks algorithm (Totally unoptimized and slow) + // + // Find Q and S, that Q * 2 ^ S = (P - 1) + var q = this.m.subn(1); + var s = 0; + while (!q.isZero() && q.andln(1) === 0) { + s++; + q.iushrn(1); + } + assert(!q.isZero()); + + var one = new BN(1).toRed(this); + var nOne = one.redNeg(); + + // Find quadratic non-residue + // NOTE: Max is such because of generalized Riemann hypothesis. + var lpow = this.m.subn(1).iushrn(1); + var z = this.m.bitLength(); + z = new BN(2 * z * z).toRed(this); + + while (this.pow(z, lpow).cmp(nOne) !== 0) { + z.redIAdd(nOne); + } + + var c = this.pow(z, q); + var r = this.pow(a, q.addn(1).iushrn(1)); + var t = this.pow(a, q); + var m = s; + while (t.cmp(one) !== 0) { + var tmp = t; + for (var i = 0; tmp.cmp(one) !== 0; i++) { + tmp = tmp.redSqr(); + } + assert(i < m); + var b = this.pow(c, new BN(1).iushln(m - i - 1)); + + r = r.redMul(b); + c = b.redSqr(); + t = t.redMul(c); + m = i; + } + + return r; + }; + + Red.prototype.invm = function invm (a) { + var inv = a._invmp(this.m); + if (inv.negative !== 0) { + inv.negative = 0; + return this.imod(inv).redNeg(); + } else { + return this.imod(inv); + } + }; + + Red.prototype.pow = function pow (a, num) { + if (num.isZero()) return new BN(1).toRed(this); + if (num.cmpn(1) === 0) return a.clone(); + + var windowSize = 4; + var wnd = new Array(1 << windowSize); + wnd[0] = new BN(1).toRed(this); + wnd[1] = a; + for (var i = 2; i < wnd.length; i++) { + wnd[i] = this.mul(wnd[i - 1], a); + } + + var res = wnd[0]; + var current = 0; + var currentLen = 0; + var start = num.bitLength() % 26; + if (start === 0) { + start = 26; + } + + for (i = num.length - 1; i >= 0; i--) { + var word = num.words[i]; + for (var j = start - 1; j >= 0; j--) { + var bit = (word >> j) & 1; + if (res !== wnd[0]) { + res = this.sqr(res); + } + + if (bit === 0 && current === 0) { + currentLen = 0; + continue; + } + + current <<= 1; + current |= bit; + currentLen++; + if (currentLen !== windowSize && (i !== 0 || j !== 0)) continue; + + res = this.mul(res, wnd[current]); + currentLen = 0; + current = 0; + } + start = 26; + } + + return res; + }; + + Red.prototype.convertTo = function convertTo (num) { + var r = num.umod(this.m); + + return r === num ? r.clone() : r; + }; + + Red.prototype.convertFrom = function convertFrom (num) { + var res = num.clone(); + res.red = null; + return res; + }; + + // + // Montgomery method engine + // + + BN.mont = function mont (num) { + return new Mont(num); + }; + + function Mont (m) { + Red.call(this, m); + + this.shift = this.m.bitLength(); + if (this.shift % 26 !== 0) { + this.shift += 26 - (this.shift % 26); + } + + this.r = new BN(1).iushln(this.shift); + this.r2 = this.imod(this.r.sqr()); + this.rinv = this.r._invmp(this.m); + + this.minv = this.rinv.mul(this.r).isubn(1).div(this.m); + this.minv = this.minv.umod(this.r); + this.minv = this.r.sub(this.minv); + } + inherits(Mont, Red); + + Mont.prototype.convertTo = function convertTo (num) { + return this.imod(num.ushln(this.shift)); + }; + + Mont.prototype.convertFrom = function convertFrom (num) { + var r = this.imod(num.mul(this.rinv)); + r.red = null; + return r; + }; + + Mont.prototype.imul = function imul (a, b) { + if (a.isZero() || b.isZero()) { + a.words[0] = 0; + a.length = 1; + return a; + } + + var t = a.imul(b); + var c = t.maskn(this.shift).mul(this.minv).imaskn(this.shift).mul(this.m); + var u = t.isub(c).iushrn(this.shift); + var res = u; + + if (u.cmp(this.m) >= 0) { + res = u.isub(this.m); + } else if (u.cmpn(0) < 0) { + res = u.iadd(this.m); + } + + return res._forceRed(this); + }; + + Mont.prototype.mul = function mul (a, b) { + if (a.isZero() || b.isZero()) return new BN(0)._forceRed(this); + + var t = a.mul(b); + var c = t.maskn(this.shift).mul(this.minv).imaskn(this.shift).mul(this.m); + var u = t.isub(c).iushrn(this.shift); + var res = u; + if (u.cmp(this.m) >= 0) { + res = u.isub(this.m); + } else if (u.cmpn(0) < 0) { + res = u.iadd(this.m); + } + + return res._forceRed(this); + }; + + Mont.prototype.invm = function invm (a) { + // (AR)^-1 * R^2 = (A^-1 * R^-1) * R^2 = A^-1 * R + var res = this.imod(a._invmp(this.m).mul(this.r2)); + return res._forceRed(this); + }; +})(typeof module === 'undefined' || module, this); + +},{}],41:[function(require,module,exports){ +var r; + +module.exports = function rand(len) { + if (!r) + r = new Rand(null); + + return r.generate(len); +}; + +function Rand(rand) { + this.rand = rand; +} +module.exports.Rand = Rand; + +Rand.prototype.generate = function generate(len) { + return this._rand(len); +}; + +// Emulate crypto API using randy +Rand.prototype._rand = function _rand(n) { + if (this.rand.getBytes) + return this.rand.getBytes(n); + + var res = new Uint8Array(n); + for (var i = 0; i < res.length; i++) + res[i] = this.rand.getByte(); + return res; +}; + +if (typeof self === 'object') { + if (self.crypto && self.crypto.getRandomValues) { + // Modern browsers + Rand.prototype._rand = function _rand(n) { + var arr = new Uint8Array(n); + self.crypto.getRandomValues(arr); + return arr; + }; + } else if (self.msCrypto && self.msCrypto.getRandomValues) { + // IE + Rand.prototype._rand = function _rand(n) { + var arr = new Uint8Array(n); + self.msCrypto.getRandomValues(arr); + return arr; + }; + + // Safari's WebWorkers do not have `crypto` + } else if (typeof window === 'object') { + // Old junk + Rand.prototype._rand = function() { + throw new Error('Not implemented yet'); + }; + } +} else { + // Node.js or Web worker with no crypto support + try { + var crypto = require('crypto'); + if (typeof crypto.randomBytes !== 'function') + throw new Error('Not supported'); + + Rand.prototype._rand = function _rand(n) { + return crypto.randomBytes(n); + }; + } catch (e) { + } +} + +},{"crypto":42}],42:[function(require,module,exports){ + +},{}],43:[function(require,module,exports){ +(function (Buffer){ +// based on the aes implimentation in triple sec +// https://github.com/keybase/triplesec + +// which is in turn based on the one from crypto-js +// https://code.google.com/p/crypto-js/ + +var uint_max = Math.pow(2, 32) +function fixup_uint32 (x) { + var ret, x_pos + ret = x > uint_max || x < 0 ? (x_pos = Math.abs(x) % uint_max, x < 0 ? uint_max - x_pos : x_pos) : x + return ret +} +function scrub_vec (v) { + for (var i = 0; i < v.length; v++) { + v[i] = 0 + } + return false +} + +function Global () { + this.SBOX = [] + this.INV_SBOX = [] + this.SUB_MIX = [[], [], [], []] + this.INV_SUB_MIX = [[], [], [], []] + this.init() + this.RCON = [0x00, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36] +} + +Global.prototype.init = function () { + var d, i, sx, t, x, x2, x4, x8, xi, _i + d = (function () { + var _i, _results + _results = [] + for (i = _i = 0; _i < 256; i = ++_i) { + if (i < 128) { + _results.push(i << 1) + } else { + _results.push((i << 1) ^ 0x11b) + } + } + return _results + })() + x = 0 + xi = 0 + for (i = _i = 0; _i < 256; i = ++_i) { + sx = xi ^ (xi << 1) ^ (xi << 2) ^ (xi << 3) ^ (xi << 4) + sx = (sx >>> 8) ^ (sx & 0xff) ^ 0x63 + this.SBOX[x] = sx + this.INV_SBOX[sx] = x + x2 = d[x] + x4 = d[x2] + x8 = d[x4] + t = (d[sx] * 0x101) ^ (sx * 0x1010100) + this.SUB_MIX[0][x] = (t << 24) | (t >>> 8) + this.SUB_MIX[1][x] = (t << 16) | (t >>> 16) + this.SUB_MIX[2][x] = (t << 8) | (t >>> 24) + this.SUB_MIX[3][x] = t + t = (x8 * 0x1010101) ^ (x4 * 0x10001) ^ (x2 * 0x101) ^ (x * 0x1010100) + this.INV_SUB_MIX[0][sx] = (t << 24) | (t >>> 8) + this.INV_SUB_MIX[1][sx] = (t << 16) | (t >>> 16) + this.INV_SUB_MIX[2][sx] = (t << 8) | (t >>> 24) + this.INV_SUB_MIX[3][sx] = t + if (x === 0) { + x = xi = 1 + } else { + x = x2 ^ d[d[d[x8 ^ x2]]] + xi ^= d[d[xi]] + } + } + return true +} + +var G = new Global() + +AES.blockSize = 4 * 4 + +AES.prototype.blockSize = AES.blockSize + +AES.keySize = 256 / 8 + +AES.prototype.keySize = AES.keySize + +function bufferToArray (buf) { + var len = buf.length / 4 + var out = new Array(len) + var i = -1 + while (++i < len) { + out[i] = buf.readUInt32BE(i * 4) + } + return out +} +function AES (key) { + this._key = bufferToArray(key) + this._doReset() +} + +AES.prototype._doReset = function () { + var invKsRow, keySize, keyWords, ksRow, ksRows, t + keyWords = this._key + keySize = keyWords.length + this._nRounds = keySize + 6 + ksRows = (this._nRounds + 1) * 4 + this._keySchedule = [] + for (ksRow = 0; ksRow < ksRows; ksRow++) { + this._keySchedule[ksRow] = ksRow < keySize ? keyWords[ksRow] : (t = this._keySchedule[ksRow - 1], (ksRow % keySize) === 0 ? (t = (t << 8) | (t >>> 24), t = (G.SBOX[t >>> 24] << 24) | (G.SBOX[(t >>> 16) & 0xff] << 16) | (G.SBOX[(t >>> 8) & 0xff] << 8) | G.SBOX[t & 0xff], t ^= G.RCON[(ksRow / keySize) | 0] << 24) : keySize > 6 && ksRow % keySize === 4 ? t = (G.SBOX[t >>> 24] << 24) | (G.SBOX[(t >>> 16) & 0xff] << 16) | (G.SBOX[(t >>> 8) & 0xff] << 8) | G.SBOX[t & 0xff] : void 0, this._keySchedule[ksRow - keySize] ^ t) + } + this._invKeySchedule = [] + for (invKsRow = 0; invKsRow < ksRows; invKsRow++) { + ksRow = ksRows - invKsRow + t = this._keySchedule[ksRow - (invKsRow % 4 ? 0 : 4)] + this._invKeySchedule[invKsRow] = invKsRow < 4 || ksRow <= 4 ? t : G.INV_SUB_MIX[0][G.SBOX[t >>> 24]] ^ G.INV_SUB_MIX[1][G.SBOX[(t >>> 16) & 0xff]] ^ G.INV_SUB_MIX[2][G.SBOX[(t >>> 8) & 0xff]] ^ G.INV_SUB_MIX[3][G.SBOX[t & 0xff]] + } + return true +} + +AES.prototype.encryptBlock = function (M) { + M = bufferToArray(new Buffer(M)) + var out = this._doCryptBlock(M, this._keySchedule, G.SUB_MIX, G.SBOX) + var buf = new Buffer(16) + buf.writeUInt32BE(out[0], 0) + buf.writeUInt32BE(out[1], 4) + buf.writeUInt32BE(out[2], 8) + buf.writeUInt32BE(out[3], 12) + return buf +} + +AES.prototype.decryptBlock = function (M) { + M = bufferToArray(new Buffer(M)) + var temp = [M[3], M[1]] + M[1] = temp[0] + M[3] = temp[1] + var out = this._doCryptBlock(M, this._invKeySchedule, G.INV_SUB_MIX, G.INV_SBOX) + var buf = new Buffer(16) + buf.writeUInt32BE(out[0], 0) + buf.writeUInt32BE(out[3], 4) + buf.writeUInt32BE(out[2], 8) + buf.writeUInt32BE(out[1], 12) + return buf +} + +AES.prototype.scrub = function () { + scrub_vec(this._keySchedule) + scrub_vec(this._invKeySchedule) + scrub_vec(this._key) +} + +AES.prototype._doCryptBlock = function (M, keySchedule, SUB_MIX, SBOX) { + var ksRow, s0, s1, s2, s3, t0, t1, t2, t3 + + s0 = M[0] ^ keySchedule[0] + s1 = M[1] ^ keySchedule[1] + s2 = M[2] ^ keySchedule[2] + s3 = M[3] ^ keySchedule[3] + ksRow = 4 + for (var round = 1; round < this._nRounds; round++) { + t0 = SUB_MIX[0][s0 >>> 24] ^ SUB_MIX[1][(s1 >>> 16) & 0xff] ^ SUB_MIX[2][(s2 >>> 8) & 0xff] ^ SUB_MIX[3][s3 & 0xff] ^ keySchedule[ksRow++] + t1 = SUB_MIX[0][s1 >>> 24] ^ SUB_MIX[1][(s2 >>> 16) & 0xff] ^ SUB_MIX[2][(s3 >>> 8) & 0xff] ^ SUB_MIX[3][s0 & 0xff] ^ keySchedule[ksRow++] + t2 = SUB_MIX[0][s2 >>> 24] ^ SUB_MIX[1][(s3 >>> 16) & 0xff] ^ SUB_MIX[2][(s0 >>> 8) & 0xff] ^ SUB_MIX[3][s1 & 0xff] ^ keySchedule[ksRow++] + t3 = SUB_MIX[0][s3 >>> 24] ^ SUB_MIX[1][(s0 >>> 16) & 0xff] ^ SUB_MIX[2][(s1 >>> 8) & 0xff] ^ SUB_MIX[3][s2 & 0xff] ^ keySchedule[ksRow++] + s0 = t0 + s1 = t1 + s2 = t2 + s3 = t3 + } + t0 = ((SBOX[s0 >>> 24] << 24) | (SBOX[(s1 >>> 16) & 0xff] << 16) | (SBOX[(s2 >>> 8) & 0xff] << 8) | SBOX[s3 & 0xff]) ^ keySchedule[ksRow++] + t1 = ((SBOX[s1 >>> 24] << 24) | (SBOX[(s2 >>> 16) & 0xff] << 16) | (SBOX[(s3 >>> 8) & 0xff] << 8) | SBOX[s0 & 0xff]) ^ keySchedule[ksRow++] + t2 = ((SBOX[s2 >>> 24] << 24) | (SBOX[(s3 >>> 16) & 0xff] << 16) | (SBOX[(s0 >>> 8) & 0xff] << 8) | SBOX[s1 & 0xff]) ^ keySchedule[ksRow++] + t3 = ((SBOX[s3 >>> 24] << 24) | (SBOX[(s0 >>> 16) & 0xff] << 16) | (SBOX[(s1 >>> 8) & 0xff] << 8) | SBOX[s2 & 0xff]) ^ keySchedule[ksRow++] + return [ + fixup_uint32(t0), + fixup_uint32(t1), + fixup_uint32(t2), + fixup_uint32(t3) + ] +} + +exports.AES = AES + +}).call(this,require("buffer").Buffer) +},{"buffer":69}],44:[function(require,module,exports){ +(function (Buffer){ +var aes = require('./aes') +var Transform = require('cipher-base') +var inherits = require('inherits') +var GHASH = require('./ghash') +var xor = require('buffer-xor') +inherits(StreamCipher, Transform) +module.exports = StreamCipher + +function StreamCipher (mode, key, iv, decrypt) { + if (!(this instanceof StreamCipher)) { + return new StreamCipher(mode, key, iv) + } + Transform.call(this) + this._finID = Buffer.concat([iv, new Buffer([0, 0, 0, 1])]) + iv = Buffer.concat([iv, new Buffer([0, 0, 0, 2])]) + this._cipher = new aes.AES(key) + this._prev = new Buffer(iv.length) + this._cache = new Buffer('') + this._secCache = new Buffer('') + this._decrypt = decrypt + this._alen = 0 + this._len = 0 + iv.copy(this._prev) + this._mode = mode + var h = new Buffer(4) + h.fill(0) + this._ghash = new GHASH(this._cipher.encryptBlock(h)) + this._authTag = null + this._called = false +} +StreamCipher.prototype._update = function (chunk) { + if (!this._called && this._alen) { + var rump = 16 - (this._alen % 16) + if (rump < 16) { + rump = new Buffer(rump) + rump.fill(0) + this._ghash.update(rump) + } + } + this._called = true + var out = this._mode.encrypt(this, chunk) + if (this._decrypt) { + this._ghash.update(chunk) + } else { + this._ghash.update(out) + } + this._len += chunk.length + return out +} +StreamCipher.prototype._final = function () { + if (this._decrypt && !this._authTag) { + throw new Error('Unsupported state or unable to authenticate data') + } + var tag = xor(this._ghash.final(this._alen * 8, this._len * 8), this._cipher.encryptBlock(this._finID)) + if (this._decrypt) { + if (xorTest(tag, this._authTag)) { + throw new Error('Unsupported state or unable to authenticate data') + } + } else { + this._authTag = tag + } + this._cipher.scrub() +} +StreamCipher.prototype.getAuthTag = function getAuthTag () { + if (!this._decrypt && Buffer.isBuffer(this._authTag)) { + return this._authTag + } else { + throw new Error('Attempting to get auth tag in unsupported state') + } +} +StreamCipher.prototype.setAuthTag = function setAuthTag (tag) { + if (this._decrypt) { + this._authTag = tag + } else { + throw new Error('Attempting to set auth tag in unsupported state') + } +} +StreamCipher.prototype.setAAD = function setAAD (buf) { + if (!this._called) { + this._ghash.update(buf) + this._alen += buf.length + } else { + throw new Error('Attempting to set AAD in unsupported state') + } +} +function xorTest (a, b) { + var out = 0 + if (a.length !== b.length) { + out++ + } + var len = Math.min(a.length, b.length) + var i = -1 + while (++i < len) { + out += (a[i] ^ b[i]) + } + return out +} + +}).call(this,require("buffer").Buffer) +},{"./aes":43,"./ghash":48,"buffer":69,"buffer-xor":68,"cipher-base":70,"inherits":123}],45:[function(require,module,exports){ +var ciphers = require('./encrypter') +exports.createCipher = exports.Cipher = ciphers.createCipher +exports.createCipheriv = exports.Cipheriv = ciphers.createCipheriv +var deciphers = require('./decrypter') +exports.createDecipher = exports.Decipher = deciphers.createDecipher +exports.createDecipheriv = exports.Decipheriv = deciphers.createDecipheriv +var modes = require('./modes') +function getCiphers () { + return Object.keys(modes) +} +exports.listCiphers = exports.getCiphers = getCiphers + +},{"./decrypter":46,"./encrypter":47,"./modes":49}],46:[function(require,module,exports){ +(function (Buffer){ +var aes = require('./aes') +var Transform = require('cipher-base') +var inherits = require('inherits') +var modes = require('./modes') +var StreamCipher = require('./streamCipher') +var AuthCipher = require('./authCipher') +var ebtk = require('evp_bytestokey') + +inherits(Decipher, Transform) +function Decipher (mode, key, iv) { + if (!(this instanceof Decipher)) { + return new Decipher(mode, key, iv) + } + Transform.call(this) + this._cache = new Splitter() + this._last = void 0 + this._cipher = new aes.AES(key) + this._prev = new Buffer(iv.length) + iv.copy(this._prev) + this._mode = mode + this._autopadding = true +} +Decipher.prototype._update = function (data) { + this._cache.add(data) + var chunk + var thing + var out = [] + while ((chunk = this._cache.get(this._autopadding))) { + thing = this._mode.decrypt(this, chunk) + out.push(thing) + } + return Buffer.concat(out) +} +Decipher.prototype._final = function () { + var chunk = this._cache.flush() + if (this._autopadding) { + return unpad(this._mode.decrypt(this, chunk)) + } else if (chunk) { + throw new Error('data not multiple of block length') + } +} +Decipher.prototype.setAutoPadding = function (setTo) { + this._autopadding = !!setTo + return this +} +function Splitter () { + if (!(this instanceof Splitter)) { + return new Splitter() + } + this.cache = new Buffer('') +} +Splitter.prototype.add = function (data) { + this.cache = Buffer.concat([this.cache, data]) +} + +Splitter.prototype.get = function (autoPadding) { + var out + if (autoPadding) { + if (this.cache.length > 16) { + out = this.cache.slice(0, 16) + this.cache = this.cache.slice(16) + return out + } + } else { + if (this.cache.length >= 16) { + out = this.cache.slice(0, 16) + this.cache = this.cache.slice(16) + return out + } + } + return null +} +Splitter.prototype.flush = function () { + if (this.cache.length) { + return this.cache + } +} +function unpad (last) { + var padded = last[15] + var i = -1 + while (++i < padded) { + if (last[(i + (16 - padded))] !== padded) { + throw new Error('unable to decrypt data') + } + } + if (padded === 16) { + return + } + return last.slice(0, 16 - padded) +} + +var modelist = { + ECB: require('./modes/ecb'), + CBC: require('./modes/cbc'), + CFB: require('./modes/cfb'), + CFB8: require('./modes/cfb8'), + CFB1: require('./modes/cfb1'), + OFB: require('./modes/ofb'), + CTR: require('./modes/ctr'), + GCM: require('./modes/ctr') +} + +function createDecipheriv (suite, password, iv) { + var config = modes[suite.toLowerCase()] + if (!config) { + throw new TypeError('invalid suite type') + } + if (typeof iv === 'string') { + iv = new Buffer(iv) + } + if (typeof password === 'string') { + password = new Buffer(password) + } + if (password.length !== config.key / 8) { + throw new TypeError('invalid key length ' + password.length) + } + if (iv.length !== config.iv) { + throw new TypeError('invalid iv length ' + iv.length) + } + if (config.type === 'stream') { + return new StreamCipher(modelist[config.mode], password, iv, true) + } else if (config.type === 'auth') { + return new AuthCipher(modelist[config.mode], password, iv, true) + } + return new Decipher(modelist[config.mode], password, iv) +} + +function createDecipher (suite, password) { + var config = modes[suite.toLowerCase()] + if (!config) { + throw new TypeError('invalid suite type') + } + var keys = ebtk(password, false, config.key, config.iv) + return createDecipheriv(suite, keys.key, keys.iv) +} +exports.createDecipher = createDecipher +exports.createDecipheriv = createDecipheriv + +}).call(this,require("buffer").Buffer) +},{"./aes":43,"./authCipher":44,"./modes":49,"./modes/cbc":50,"./modes/cfb":51,"./modes/cfb1":52,"./modes/cfb8":53,"./modes/ctr":54,"./modes/ecb":55,"./modes/ofb":56,"./streamCipher":57,"buffer":69,"cipher-base":70,"evp_bytestokey":106,"inherits":123}],47:[function(require,module,exports){ +(function (Buffer){ +var aes = require('./aes') +var Transform = require('cipher-base') +var inherits = require('inherits') +var modes = require('./modes') +var ebtk = require('evp_bytestokey') +var StreamCipher = require('./streamCipher') +var AuthCipher = require('./authCipher') +inherits(Cipher, Transform) +function Cipher (mode, key, iv) { + if (!(this instanceof Cipher)) { + return new Cipher(mode, key, iv) + } + Transform.call(this) + this._cache = new Splitter() + this._cipher = new aes.AES(key) + this._prev = new Buffer(iv.length) + iv.copy(this._prev) + this._mode = mode + this._autopadding = true +} +Cipher.prototype._update = function (data) { + this._cache.add(data) + var chunk + var thing + var out = [] + while ((chunk = this._cache.get())) { + thing = this._mode.encrypt(this, chunk) + out.push(thing) + } + return Buffer.concat(out) +} +Cipher.prototype._final = function () { + var chunk = this._cache.flush() + if (this._autopadding) { + chunk = this._mode.encrypt(this, chunk) + this._cipher.scrub() + return chunk + } else if (chunk.toString('hex') !== '10101010101010101010101010101010') { + this._cipher.scrub() + throw new Error('data not multiple of block length') + } +} +Cipher.prototype.setAutoPadding = function (setTo) { + this._autopadding = !!setTo + return this +} + +function Splitter () { + if (!(this instanceof Splitter)) { + return new Splitter() + } + this.cache = new Buffer('') +} +Splitter.prototype.add = function (data) { + this.cache = Buffer.concat([this.cache, data]) +} + +Splitter.prototype.get = function () { + if (this.cache.length > 15) { + var out = this.cache.slice(0, 16) + this.cache = this.cache.slice(16) + return out + } + return null +} +Splitter.prototype.flush = function () { + var len = 16 - this.cache.length + var padBuff = new Buffer(len) + + var i = -1 + while (++i < len) { + padBuff.writeUInt8(len, i) + } + var out = Buffer.concat([this.cache, padBuff]) + return out +} +var modelist = { + ECB: require('./modes/ecb'), + CBC: require('./modes/cbc'), + CFB: require('./modes/cfb'), + CFB8: require('./modes/cfb8'), + CFB1: require('./modes/cfb1'), + OFB: require('./modes/ofb'), + CTR: require('./modes/ctr'), + GCM: require('./modes/ctr') +} + +function createCipheriv (suite, password, iv) { + var config = modes[suite.toLowerCase()] + if (!config) { + throw new TypeError('invalid suite type') + } + if (typeof iv === 'string') { + iv = new Buffer(iv) + } + if (typeof password === 'string') { + password = new Buffer(password) + } + if (password.length !== config.key / 8) { + throw new TypeError('invalid key length ' + password.length) + } + if (iv.length !== config.iv) { + throw new TypeError('invalid iv length ' + iv.length) + } + if (config.type === 'stream') { + return new StreamCipher(modelist[config.mode], password, iv) + } else if (config.type === 'auth') { + return new AuthCipher(modelist[config.mode], password, iv) + } + return new Cipher(modelist[config.mode], password, iv) +} +function createCipher (suite, password) { + var config = modes[suite.toLowerCase()] + if (!config) { + throw new TypeError('invalid suite type') + } + var keys = ebtk(password, false, config.key, config.iv) + return createCipheriv(suite, keys.key, keys.iv) +} + +exports.createCipheriv = createCipheriv +exports.createCipher = createCipher + +}).call(this,require("buffer").Buffer) +},{"./aes":43,"./authCipher":44,"./modes":49,"./modes/cbc":50,"./modes/cfb":51,"./modes/cfb1":52,"./modes/cfb8":53,"./modes/ctr":54,"./modes/ecb":55,"./modes/ofb":56,"./streamCipher":57,"buffer":69,"cipher-base":70,"evp_bytestokey":106,"inherits":123}],48:[function(require,module,exports){ +(function (Buffer){ +var zeros = new Buffer(16) +zeros.fill(0) +module.exports = GHASH +function GHASH (key) { + this.h = key + this.state = new Buffer(16) + this.state.fill(0) + this.cache = new Buffer('') +} +// from http://bitwiseshiftleft.github.io/sjcl/doc/symbols/src/core_gcm.js.html +// by Juho Vähä-Herttua +GHASH.prototype.ghash = function (block) { + var i = -1 + while (++i < block.length) { + this.state[i] ^= block[i] + } + this._multiply() +} + +GHASH.prototype._multiply = function () { + var Vi = toArray(this.h) + var Zi = [0, 0, 0, 0] + var j, xi, lsb_Vi + var i = -1 + while (++i < 128) { + xi = (this.state[~~(i / 8)] & (1 << (7 - i % 8))) !== 0 + if (xi) { + // Z_i+1 = Z_i ^ V_i + Zi = xor(Zi, Vi) + } + + // Store the value of LSB(V_i) + lsb_Vi = (Vi[3] & 1) !== 0 + + // V_i+1 = V_i >> 1 + for (j = 3; j > 0; j--) { + Vi[j] = (Vi[j] >>> 1) | ((Vi[j - 1] & 1) << 31) + } + Vi[0] = Vi[0] >>> 1 + + // If LSB(V_i) is 1, V_i+1 = (V_i >> 1) ^ R + if (lsb_Vi) { + Vi[0] = Vi[0] ^ (0xe1 << 24) + } + } + this.state = fromArray(Zi) +} +GHASH.prototype.update = function (buf) { + this.cache = Buffer.concat([this.cache, buf]) + var chunk + while (this.cache.length >= 16) { + chunk = this.cache.slice(0, 16) + this.cache = this.cache.slice(16) + this.ghash(chunk) + } +} +GHASH.prototype.final = function (abl, bl) { + if (this.cache.length) { + this.ghash(Buffer.concat([this.cache, zeros], 16)) + } + this.ghash(fromArray([ + 0, abl, + 0, bl + ])) + return this.state +} + +function toArray (buf) { + return [ + buf.readUInt32BE(0), + buf.readUInt32BE(4), + buf.readUInt32BE(8), + buf.readUInt32BE(12) + ] +} +function fromArray (out) { + out = out.map(fixup_uint32) + var buf = new Buffer(16) + buf.writeUInt32BE(out[0], 0) + buf.writeUInt32BE(out[1], 4) + buf.writeUInt32BE(out[2], 8) + buf.writeUInt32BE(out[3], 12) + return buf +} +var uint_max = Math.pow(2, 32) +function fixup_uint32 (x) { + var ret, x_pos + ret = x > uint_max || x < 0 ? (x_pos = Math.abs(x) % uint_max, x < 0 ? uint_max - x_pos : x_pos) : x + return ret +} +function xor (a, b) { + return [ + a[0] ^ b[0], + a[1] ^ b[1], + a[2] ^ b[2], + a[3] ^ b[3] + ] +} + +}).call(this,require("buffer").Buffer) +},{"buffer":69}],49:[function(require,module,exports){ +exports['aes-128-ecb'] = { + cipher: 'AES', + key: 128, + iv: 0, + mode: 'ECB', + type: 'block' +} +exports['aes-192-ecb'] = { + cipher: 'AES', + key: 192, + iv: 0, + mode: 'ECB', + type: 'block' +} +exports['aes-256-ecb'] = { + cipher: 'AES', + key: 256, + iv: 0, + mode: 'ECB', + type: 'block' +} +exports['aes-128-cbc'] = { + cipher: 'AES', + key: 128, + iv: 16, + mode: 'CBC', + type: 'block' +} +exports['aes-192-cbc'] = { + cipher: 'AES', + key: 192, + iv: 16, + mode: 'CBC', + type: 'block' +} +exports['aes-256-cbc'] = { + cipher: 'AES', + key: 256, + iv: 16, + mode: 'CBC', + type: 'block' +} +exports['aes128'] = exports['aes-128-cbc'] +exports['aes192'] = exports['aes-192-cbc'] +exports['aes256'] = exports['aes-256-cbc'] +exports['aes-128-cfb'] = { + cipher: 'AES', + key: 128, + iv: 16, + mode: 'CFB', + type: 'stream' +} +exports['aes-192-cfb'] = { + cipher: 'AES', + key: 192, + iv: 16, + mode: 'CFB', + type: 'stream' +} +exports['aes-256-cfb'] = { + cipher: 'AES', + key: 256, + iv: 16, + mode: 'CFB', + type: 'stream' +} +exports['aes-128-cfb8'] = { + cipher: 'AES', + key: 128, + iv: 16, + mode: 'CFB8', + type: 'stream' +} +exports['aes-192-cfb8'] = { + cipher: 'AES', + key: 192, + iv: 16, + mode: 'CFB8', + type: 'stream' +} +exports['aes-256-cfb8'] = { + cipher: 'AES', + key: 256, + iv: 16, + mode: 'CFB8', + type: 'stream' +} +exports['aes-128-cfb1'] = { + cipher: 'AES', + key: 128, + iv: 16, + mode: 'CFB1', + type: 'stream' +} +exports['aes-192-cfb1'] = { + cipher: 'AES', + key: 192, + iv: 16, + mode: 'CFB1', + type: 'stream' +} +exports['aes-256-cfb1'] = { + cipher: 'AES', + key: 256, + iv: 16, + mode: 'CFB1', + type: 'stream' +} +exports['aes-128-ofb'] = { + cipher: 'AES', + key: 128, + iv: 16, + mode: 'OFB', + type: 'stream' +} +exports['aes-192-ofb'] = { + cipher: 'AES', + key: 192, + iv: 16, + mode: 'OFB', + type: 'stream' +} +exports['aes-256-ofb'] = { + cipher: 'AES', + key: 256, + iv: 16, + mode: 'OFB', + type: 'stream' +} +exports['aes-128-ctr'] = { + cipher: 'AES', + key: 128, + iv: 16, + mode: 'CTR', + type: 'stream' +} +exports['aes-192-ctr'] = { + cipher: 'AES', + key: 192, + iv: 16, + mode: 'CTR', + type: 'stream' +} +exports['aes-256-ctr'] = { + cipher: 'AES', + key: 256, + iv: 16, + mode: 'CTR', + type: 'stream' +} +exports['aes-128-gcm'] = { + cipher: 'AES', + key: 128, + iv: 12, + mode: 'GCM', + type: 'auth' +} +exports['aes-192-gcm'] = { + cipher: 'AES', + key: 192, + iv: 12, + mode: 'GCM', + type: 'auth' +} +exports['aes-256-gcm'] = { + cipher: 'AES', + key: 256, + iv: 12, + mode: 'GCM', + type: 'auth' +} + +},{}],50:[function(require,module,exports){ +var xor = require('buffer-xor') + +exports.encrypt = function (self, block) { + var data = xor(block, self._prev) + + self._prev = self._cipher.encryptBlock(data) + return self._prev +} + +exports.decrypt = function (self, block) { + var pad = self._prev + + self._prev = block + var out = self._cipher.decryptBlock(block) + + return xor(out, pad) +} + +},{"buffer-xor":68}],51:[function(require,module,exports){ +(function (Buffer){ +var xor = require('buffer-xor') + +exports.encrypt = function (self, data, decrypt) { + var out = new Buffer('') + var len + + while (data.length) { + if (self._cache.length === 0) { + self._cache = self._cipher.encryptBlock(self._prev) + self._prev = new Buffer('') + } + + if (self._cache.length <= data.length) { + len = self._cache.length + out = Buffer.concat([out, encryptStart(self, data.slice(0, len), decrypt)]) + data = data.slice(len) + } else { + out = Buffer.concat([out, encryptStart(self, data, decrypt)]) + break + } + } + + return out +} +function encryptStart (self, data, decrypt) { + var len = data.length + var out = xor(data, self._cache) + self._cache = self._cache.slice(len) + self._prev = Buffer.concat([self._prev, decrypt ? data : out]) + return out +} + +}).call(this,require("buffer").Buffer) +},{"buffer":69,"buffer-xor":68}],52:[function(require,module,exports){ +(function (Buffer){ +function encryptByte (self, byteParam, decrypt) { + var pad + var i = -1 + var len = 8 + var out = 0 + var bit, value + while (++i < len) { + pad = self._cipher.encryptBlock(self._prev) + bit = (byteParam & (1 << (7 - i))) ? 0x80 : 0 + value = pad[0] ^ bit + out += ((value & 0x80) >> (i % 8)) + self._prev = shiftIn(self._prev, decrypt ? bit : value) + } + return out +} +exports.encrypt = function (self, chunk, decrypt) { + var len = chunk.length + var out = new Buffer(len) + var i = -1 + while (++i < len) { + out[i] = encryptByte(self, chunk[i], decrypt) + } + return out +} +function shiftIn (buffer, value) { + var len = buffer.length + var i = -1 + var out = new Buffer(buffer.length) + buffer = Buffer.concat([buffer, new Buffer([value])]) + while (++i < len) { + out[i] = buffer[i] << 1 | buffer[i + 1] >> (7) + } + return out +} + +}).call(this,require("buffer").Buffer) +},{"buffer":69}],53:[function(require,module,exports){ +(function (Buffer){ +function encryptByte (self, byteParam, decrypt) { + var pad = self._cipher.encryptBlock(self._prev) + var out = pad[0] ^ byteParam + self._prev = Buffer.concat([self._prev.slice(1), new Buffer([decrypt ? byteParam : out])]) + return out +} +exports.encrypt = function (self, chunk, decrypt) { + var len = chunk.length + var out = new Buffer(len) + var i = -1 + while (++i < len) { + out[i] = encryptByte(self, chunk[i], decrypt) + } + return out +} + +}).call(this,require("buffer").Buffer) +},{"buffer":69}],54:[function(require,module,exports){ +(function (Buffer){ +var xor = require('buffer-xor') + +function incr32 (iv) { + var len = iv.length + var item + while (len--) { + item = iv.readUInt8(len) + if (item === 255) { + iv.writeUInt8(0, len) + } else { + item++ + iv.writeUInt8(item, len) + break + } + } +} + +function getBlock (self) { + var out = self._cipher.encryptBlock(self._prev) + incr32(self._prev) + return out +} + +exports.encrypt = function (self, chunk) { + while (self._cache.length < chunk.length) { + self._cache = Buffer.concat([self._cache, getBlock(self)]) + } + var pad = self._cache.slice(0, chunk.length) + self._cache = self._cache.slice(chunk.length) + return xor(chunk, pad) +} + +}).call(this,require("buffer").Buffer) +},{"buffer":69,"buffer-xor":68}],55:[function(require,module,exports){ +exports.encrypt = function (self, block) { + return self._cipher.encryptBlock(block) +} +exports.decrypt = function (self, block) { + return self._cipher.decryptBlock(block) +} + +},{}],56:[function(require,module,exports){ +(function (Buffer){ +var xor = require('buffer-xor') + +function getBlock (self) { + self._prev = self._cipher.encryptBlock(self._prev) + return self._prev +} + +exports.encrypt = function (self, chunk) { + while (self._cache.length < chunk.length) { + self._cache = Buffer.concat([self._cache, getBlock(self)]) + } + + var pad = self._cache.slice(0, chunk.length) + self._cache = self._cache.slice(chunk.length) + return xor(chunk, pad) +} + +}).call(this,require("buffer").Buffer) +},{"buffer":69,"buffer-xor":68}],57:[function(require,module,exports){ +(function (Buffer){ +var aes = require('./aes') +var Transform = require('cipher-base') +var inherits = require('inherits') + +inherits(StreamCipher, Transform) +module.exports = StreamCipher +function StreamCipher (mode, key, iv, decrypt) { + if (!(this instanceof StreamCipher)) { + return new StreamCipher(mode, key, iv) + } + Transform.call(this) + this._cipher = new aes.AES(key) + this._prev = new Buffer(iv.length) + this._cache = new Buffer('') + this._secCache = new Buffer('') + this._decrypt = decrypt + iv.copy(this._prev) + this._mode = mode +} +StreamCipher.prototype._update = function (chunk) { + return this._mode.encrypt(this, chunk, this._decrypt) +} +StreamCipher.prototype._final = function () { + this._cipher.scrub() +} + +}).call(this,require("buffer").Buffer) +},{"./aes":43,"buffer":69,"cipher-base":70,"inherits":123}],58:[function(require,module,exports){ +var ebtk = require('evp_bytestokey') +var aes = require('browserify-aes/browser') +var DES = require('browserify-des') +var desModes = require('browserify-des/modes') +var aesModes = require('browserify-aes/modes') +function createCipher (suite, password) { + var keyLen, ivLen + suite = suite.toLowerCase() + if (aesModes[suite]) { + keyLen = aesModes[suite].key + ivLen = aesModes[suite].iv + } else if (desModes[suite]) { + keyLen = desModes[suite].key * 8 + ivLen = desModes[suite].iv + } else { + throw new TypeError('invalid suite type') + } + var keys = ebtk(password, false, keyLen, ivLen) + return createCipheriv(suite, keys.key, keys.iv) +} +function createDecipher (suite, password) { + var keyLen, ivLen + suite = suite.toLowerCase() + if (aesModes[suite]) { + keyLen = aesModes[suite].key + ivLen = aesModes[suite].iv + } else if (desModes[suite]) { + keyLen = desModes[suite].key * 8 + ivLen = desModes[suite].iv + } else { + throw new TypeError('invalid suite type') + } + var keys = ebtk(password, false, keyLen, ivLen) + return createDecipheriv(suite, keys.key, keys.iv) +} + +function createCipheriv (suite, key, iv) { + suite = suite.toLowerCase() + if (aesModes[suite]) { + return aes.createCipheriv(suite, key, iv) + } else if (desModes[suite]) { + return new DES({ + key: key, + iv: iv, + mode: suite + }) + } else { + throw new TypeError('invalid suite type') + } +} +function createDecipheriv (suite, key, iv) { + suite = suite.toLowerCase() + if (aesModes[suite]) { + return aes.createDecipheriv(suite, key, iv) + } else if (desModes[suite]) { + return new DES({ + key: key, + iv: iv, + mode: suite, + decrypt: true + }) + } else { + throw new TypeError('invalid suite type') + } +} +exports.createCipher = exports.Cipher = createCipher +exports.createCipheriv = exports.Cipheriv = createCipheriv +exports.createDecipher = exports.Decipher = createDecipher +exports.createDecipheriv = exports.Decipheriv = createDecipheriv +function getCiphers () { + return Object.keys(desModes).concat(aes.getCiphers()) +} +exports.listCiphers = exports.getCiphers = getCiphers + +},{"browserify-aes/browser":45,"browserify-aes/modes":49,"browserify-des":59,"browserify-des/modes":60,"evp_bytestokey":106}],59:[function(require,module,exports){ +(function (Buffer){ +var CipherBase = require('cipher-base') +var des = require('des.js') +var inherits = require('inherits') + +var modes = { + 'des-ede3-cbc': des.CBC.instantiate(des.EDE), + 'des-ede3': des.EDE, + 'des-ede-cbc': des.CBC.instantiate(des.EDE), + 'des-ede': des.EDE, + 'des-cbc': des.CBC.instantiate(des.DES), + 'des-ecb': des.DES +} +modes.des = modes['des-cbc'] +modes.des3 = modes['des-ede3-cbc'] +module.exports = DES +inherits(DES, CipherBase) +function DES (opts) { + CipherBase.call(this) + var modeName = opts.mode.toLowerCase() + var mode = modes[modeName] + var type + if (opts.decrypt) { + type = 'decrypt' + } else { + type = 'encrypt' + } + var key = opts.key + if (modeName === 'des-ede' || modeName === 'des-ede-cbc') { + key = Buffer.concat([key, key.slice(0, 8)]) + } + var iv = opts.iv + this._des = mode.create({ + key: key, + iv: iv, + type: type + }) +} +DES.prototype._update = function (data) { + return new Buffer(this._des.update(data)) +} +DES.prototype._final = function () { + return new Buffer(this._des.final()) +} + +}).call(this,require("buffer").Buffer) +},{"buffer":69,"cipher-base":70,"des.js":79,"inherits":123}],60:[function(require,module,exports){ +exports['des-ecb'] = { + key: 8, + iv: 0 +} +exports['des-cbc'] = exports.des = { + key: 8, + iv: 8 +} +exports['des-ede3-cbc'] = exports.des3 = { + key: 24, + iv: 8 +} +exports['des-ede3'] = { + key: 24, + iv: 0 +} +exports['des-ede-cbc'] = { + key: 16, + iv: 8 +} +exports['des-ede'] = { + key: 16, + iv: 0 +} + +},{}],61:[function(require,module,exports){ +(function (Buffer){ +var bn = require('bn.js'); +var randomBytes = require('randombytes'); +module.exports = crt; +function blind(priv) { + var r = getr(priv); + var blinder = r.toRed(bn.mont(priv.modulus)) + .redPow(new bn(priv.publicExponent)).fromRed(); + return { + blinder: blinder, + unblinder:r.invm(priv.modulus) + }; +} +function crt(msg, priv) { + var blinds = blind(priv); + var len = priv.modulus.byteLength(); + var mod = bn.mont(priv.modulus); + var blinded = new bn(msg).mul(blinds.blinder).umod(priv.modulus); + var c1 = blinded.toRed(bn.mont(priv.prime1)); + var c2 = blinded.toRed(bn.mont(priv.prime2)); + var qinv = priv.coefficient; + var p = priv.prime1; + var q = priv.prime2; + var m1 = c1.redPow(priv.exponent1); + var m2 = c2.redPow(priv.exponent2); + m1 = m1.fromRed(); + m2 = m2.fromRed(); + var h = m1.isub(m2).imul(qinv).umod(p); + h.imul(q); + m2.iadd(h); + return new Buffer(m2.imul(blinds.unblinder).umod(priv.modulus).toArray(false, len)); +} +crt.getr = getr; +function getr(priv) { + var len = priv.modulus.byteLength(); + var r = new bn(randomBytes(len)); + while (r.cmp(priv.modulus) >= 0 || !r.umod(priv.prime1) || !r.umod(priv.prime2)) { + r = new bn(randomBytes(len)); + } + return r; +} + +}).call(this,require("buffer").Buffer) +},{"bn.js":40,"buffer":69,"randombytes":147}],62:[function(require,module,exports){ +module.exports = require('./browser/algorithms.json') + +},{"./browser/algorithms.json":63}],63:[function(require,module,exports){ +module.exports={ + "sha224WithRSAEncryption": { + "sign": "rsa", + "hash": "sha224", + "id": "302d300d06096086480165030402040500041c" + }, + "RSA-SHA224": { + "sign": "ecdsa/rsa", + "hash": "sha224", + "id": "302d300d06096086480165030402040500041c" + }, + "sha256WithRSAEncryption": { + "sign": "rsa", + "hash": "sha256", + "id": "3031300d060960864801650304020105000420" + }, + "RSA-SHA256": { + "sign": "ecdsa/rsa", + "hash": "sha256", + "id": "3031300d060960864801650304020105000420" + }, + "sha384WithRSAEncryption": { + "sign": "rsa", + "hash": "sha384", + "id": "3041300d060960864801650304020205000430" + }, + "RSA-SHA384": { + "sign": "ecdsa/rsa", + "hash": "sha384", + "id": "3041300d060960864801650304020205000430" + }, + "sha512WithRSAEncryption": { + "sign": "rsa", + "hash": "sha512", + "id": "3051300d060960864801650304020305000440" + }, + "RSA-SHA512": { + "sign": "ecdsa/rsa", + "hash": "sha512", + "id": "3051300d060960864801650304020305000440" + }, + "RSA-SHA1": { + "sign": "rsa", + "hash": "sha1", + "id": "3021300906052b0e03021a05000414" + }, + "ecdsa-with-SHA1": { + "sign": "ecdsa", + "hash": "sha1", + "id": "" + }, + "sha256": { + "sign": "ecdsa", + "hash": "sha256", + "id": "" + }, + "sha224": { + "sign": "ecdsa", + "hash": "sha224", + "id": "" + }, + "sha384": { + "sign": "ecdsa", + "hash": "sha384", + "id": "" + }, + "sha512": { + "sign": "ecdsa", + "hash": "sha512", + "id": "" + }, + "DSA-SHA": { + "sign": "dsa", + "hash": "sha1", + "id": "" + }, + "DSA-SHA1": { + "sign": "dsa", + "hash": "sha1", + "id": "" + }, + "DSA": { + "sign": "dsa", + "hash": "sha1", + "id": "" + }, + "DSA-WITH-SHA224": { + "sign": "dsa", + "hash": "sha224", + "id": "" + }, + "DSA-SHA224": { + "sign": "dsa", + "hash": "sha224", + "id": "" + }, + "DSA-WITH-SHA256": { + "sign": "dsa", + "hash": "sha256", + "id": "" + }, + "DSA-SHA256": { + "sign": "dsa", + "hash": "sha256", + "id": "" + }, + "DSA-WITH-SHA384": { + "sign": "dsa", + "hash": "sha384", + "id": "" + }, + "DSA-SHA384": { + "sign": "dsa", + "hash": "sha384", + "id": "" + }, + "DSA-WITH-SHA512": { + "sign": "dsa", + "hash": "sha512", + "id": "" + }, + "DSA-SHA512": { + "sign": "dsa", + "hash": "sha512", + "id": "" + }, + "DSA-RIPEMD160": { + "sign": "dsa", + "hash": "rmd160", + "id": "" + }, + "ripemd160WithRSA": { + "sign": "rsa", + "hash": "rmd160", + "id": "3021300906052b2403020105000414" + }, + "RSA-RIPEMD160": { + "sign": "rsa", + "hash": "rmd160", + "id": "3021300906052b2403020105000414" + }, + "md5WithRSAEncryption": { + "sign": "rsa", + "hash": "md5", + "id": "3020300c06082a864886f70d020505000410" + }, + "RSA-MD5": { + "sign": "rsa", + "hash": "md5", + "id": "3020300c06082a864886f70d020505000410" + } +} + +},{}],64:[function(require,module,exports){ +module.exports={ + "1.3.132.0.10": "secp256k1", + "1.3.132.0.33": "p224", + "1.2.840.10045.3.1.1": "p192", + "1.2.840.10045.3.1.7": "p256", + "1.3.132.0.34": "p384", + "1.3.132.0.35": "p521" +} + +},{}],65:[function(require,module,exports){ +(function (Buffer){ +var createHash = require('create-hash') +var stream = require('stream') +var inherits = require('inherits') +var sign = require('./sign') +var verify = require('./verify') + +var algorithms = require('./algorithms.json') +Object.keys(algorithms).forEach(function (key) { + algorithms[key].id = new Buffer(algorithms[key].id, 'hex') + algorithms[key.toLowerCase()] = algorithms[key] +}) + +function Sign (algorithm) { + stream.Writable.call(this) + + var data = algorithms[algorithm] + if (!data) throw new Error('Unknown message digest') + + this._hashType = data.hash + this._hash = createHash(data.hash) + this._tag = data.id + this._signType = data.sign +} +inherits(Sign, stream.Writable) + +Sign.prototype._write = function _write (data, _, done) { + this._hash.update(data) + done() +} + +Sign.prototype.update = function update (data, enc) { + if (typeof data === 'string') data = new Buffer(data, enc) + + this._hash.update(data) + return this +} + +Sign.prototype.sign = function signMethod (key, enc) { + this.end() + var hash = this._hash.digest() + var sig = sign(hash, key, this._hashType, this._signType, this._tag) + + return enc ? sig.toString(enc) : sig +} + +function Verify (algorithm) { + stream.Writable.call(this) + + var data = algorithms[algorithm] + if (!data) throw new Error('Unknown message digest') + + this._hash = createHash(data.hash) + this._tag = data.id + this._signType = data.sign +} +inherits(Verify, stream.Writable) + +Verify.prototype._write = function _write (data, _, done) { + this._hash.update(data) + done() +} + +Verify.prototype.update = function update (data, enc) { + if (typeof data === 'string') data = new Buffer(data, enc) + + this._hash.update(data) + return this +} + +Verify.prototype.verify = function verifyMethod (key, sig, enc) { + if (typeof sig === 'string') sig = new Buffer(sig, enc) + + this.end() + var hash = this._hash.digest() + return verify(sig, hash, key, this._signType, this._tag) +} + +function createSign (algorithm) { + return new Sign(algorithm) +} + +function createVerify (algorithm) { + return new Verify(algorithm) +} + +module.exports = { + Sign: createSign, + Verify: createVerify, + createSign: createSign, + createVerify: createVerify +} + +}).call(this,require("buffer").Buffer) +},{"./algorithms.json":63,"./sign":66,"./verify":67,"buffer":69,"create-hash":73,"inherits":123,"stream":171}],66:[function(require,module,exports){ +(function (Buffer){ +// much of this based on https://github.com/indutny/self-signed/blob/gh-pages/lib/rsa.js +var createHmac = require('create-hmac') +var crt = require('browserify-rsa') +var EC = require('elliptic').ec +var BN = require('bn.js') +var parseKeys = require('parse-asn1') +var curves = require('./curves.json') + +function sign (hash, key, hashType, signType, tag) { + var priv = parseKeys(key) + if (priv.curve) { + // rsa keys can be interpreted as ecdsa ones in openssl + if (signType !== 'ecdsa' && signType !== 'ecdsa/rsa') throw new Error('wrong private key type') + return ecSign(hash, priv) + } else if (priv.type === 'dsa') { + if (signType !== 'dsa') throw new Error('wrong private key type') + return dsaSign(hash, priv, hashType) + } else { + if (signType !== 'rsa' && signType !== 'ecdsa/rsa') throw new Error('wrong private key type') + } + hash = Buffer.concat([tag, hash]) + var len = priv.modulus.byteLength() + var pad = [ 0, 1 ] + while (hash.length + pad.length + 1 < len) pad.push(0xff) + pad.push(0x00) + var i = -1 + while (++i < hash.length) pad.push(hash[i]) + + var out = crt(pad, priv) + return out +} + +function ecSign (hash, priv) { + var curveId = curves[priv.curve.join('.')] + if (!curveId) throw new Error('unknown curve ' + priv.curve.join('.')) + + var curve = new EC(curveId) + var key = curve.keyFromPrivate(priv.privateKey) + var out = key.sign(hash) + + return new Buffer(out.toDER()) +} + +function dsaSign (hash, priv, algo) { + var x = priv.params.priv_key + var p = priv.params.p + var q = priv.params.q + var g = priv.params.g + var r = new BN(0) + var k + var H = bits2int(hash, q).mod(q) + var s = false + var kv = getKey(x, q, hash, algo) + while (s === false) { + k = makeKey(q, kv, algo) + r = makeR(g, k, p, q) + s = k.invm(q).imul(H.add(x.mul(r))).mod(q) + if (s.cmpn(0) === 0) { + s = false + r = new BN(0) + } + } + return toDER(r, s) +} + +function toDER (r, s) { + r = r.toArray() + s = s.toArray() + + // Pad values + if (r[0] & 0x80) r = [ 0 ].concat(r) + if (s[0] & 0x80) s = [ 0 ].concat(s) + + var total = r.length + s.length + 4 + var res = [ 0x30, total, 0x02, r.length ] + res = res.concat(r, [ 0x02, s.length ], s) + return new Buffer(res) +} + +function getKey (x, q, hash, algo) { + x = new Buffer(x.toArray()) + if (x.length < q.byteLength()) { + var zeros = new Buffer(q.byteLength() - x.length) + zeros.fill(0) + x = Buffer.concat([ zeros, x ]) + } + var hlen = hash.length + var hbits = bits2octets(hash, q) + var v = new Buffer(hlen) + v.fill(1) + var k = new Buffer(hlen) + k.fill(0) + k = createHmac(algo, k).update(v).update(new Buffer([ 0 ])).update(x).update(hbits).digest() + v = createHmac(algo, k).update(v).digest() + k = createHmac(algo, k).update(v).update(new Buffer([ 1 ])).update(x).update(hbits).digest() + v = createHmac(algo, k).update(v).digest() + return { k: k, v: v } +} + +function bits2int (obits, q) { + var bits = new BN(obits) + var shift = (obits.length << 3) - q.bitLength() + if (shift > 0) bits.ishrn(shift) + return bits +} + +function bits2octets (bits, q) { + bits = bits2int(bits, q) + bits = bits.mod(q) + var out = new Buffer(bits.toArray()) + if (out.length < q.byteLength()) { + var zeros = new Buffer(q.byteLength() - out.length) + zeros.fill(0) + out = Buffer.concat([ zeros, out ]) + } + return out +} + +function makeKey (q, kv, algo) { + var t + var k + + do { + t = new Buffer(0) + + while (t.length * 8 < q.bitLength()) { + kv.v = createHmac(algo, kv.k).update(kv.v).digest() + t = Buffer.concat([ t, kv.v ]) + } + + k = bits2int(t, q) + kv.k = createHmac(algo, kv.k).update(kv.v).update(new Buffer([ 0 ])).digest() + kv.v = createHmac(algo, kv.k).update(kv.v).digest() + } while (k.cmp(q) !== -1) + + return k +} + +function makeR (g, k, p, q) { + return g.toRed(BN.mont(p)).redPow(k).fromRed().mod(q) +} + +module.exports = sign +module.exports.getKey = getKey +module.exports.makeKey = makeKey + +}).call(this,require("buffer").Buffer) +},{"./curves.json":64,"bn.js":40,"browserify-rsa":61,"buffer":69,"create-hmac":76,"elliptic":89,"parse-asn1":133}],67:[function(require,module,exports){ +(function (Buffer){ +// much of this based on https://github.com/indutny/self-signed/blob/gh-pages/lib/rsa.js +var BN = require('bn.js') +var EC = require('elliptic').ec +var parseKeys = require('parse-asn1') +var curves = require('./curves.json') + +function verify (sig, hash, key, signType, tag) { + var pub = parseKeys(key) + if (pub.type === 'ec') { + // rsa keys can be interpreted as ecdsa ones in openssl + if (signType !== 'ecdsa' && signType !== 'ecdsa/rsa') throw new Error('wrong public key type') + return ecVerify(sig, hash, pub) + } else if (pub.type === 'dsa') { + if (signType !== 'dsa') throw new Error('wrong public key type') + return dsaVerify(sig, hash, pub) + } else { + if (signType !== 'rsa' && signType !== 'ecdsa/rsa') throw new Error('wrong public key type') + } + hash = Buffer.concat([tag, hash]) + var len = pub.modulus.byteLength() + var pad = [ 1 ] + var padNum = 0 + while (hash.length + pad.length + 2 < len) { + pad.push(0xff) + padNum++ + } + pad.push(0x00) + var i = -1 + while (++i < hash.length) { + pad.push(hash[i]) + } + pad = new Buffer(pad) + var red = BN.mont(pub.modulus) + sig = new BN(sig).toRed(red) + + sig = sig.redPow(new BN(pub.publicExponent)) + sig = new Buffer(sig.fromRed().toArray()) + var out = padNum < 8 ? 1 : 0 + len = Math.min(sig.length, pad.length) + if (sig.length !== pad.length) out = 1 + + i = -1 + while (++i < len) out |= sig[i] ^ pad[i] + return out === 0 +} + +function ecVerify (sig, hash, pub) { + var curveId = curves[pub.data.algorithm.curve.join('.')] + if (!curveId) throw new Error('unknown curve ' + pub.data.algorithm.curve.join('.')) + + var curve = new EC(curveId) + var pubkey = pub.data.subjectPrivateKey.data + + return curve.verify(hash, sig, pubkey) +} + +function dsaVerify (sig, hash, pub) { + var p = pub.data.p + var q = pub.data.q + var g = pub.data.g + var y = pub.data.pub_key + var unpacked = parseKeys.signature.decode(sig, 'der') + var s = unpacked.s + var r = unpacked.r + checkValue(s, q) + checkValue(r, q) + var montp = BN.mont(p) + var w = s.invm(q) + var v = g.toRed(montp) + .redPow(new BN(hash).mul(w).mod(q)) + .fromRed() + .mul(y.toRed(montp).redPow(r.mul(w).mod(q)).fromRed()) + .mod(p) + .mod(q) + return v.cmp(r) === 0 +} + +function checkValue (b, q) { + if (b.cmpn(0) <= 0) throw new Error('invalid sig') + if (b.cmp(q) >= q) throw new Error('invalid sig') +} + +module.exports = verify + +}).call(this,require("buffer").Buffer) +},{"./curves.json":64,"bn.js":40,"buffer":69,"elliptic":89,"parse-asn1":133}],68:[function(require,module,exports){ +(function (Buffer){ +module.exports = function xor (a, b) { + var length = Math.min(a.length, b.length) + var buffer = new Buffer(length) + + for (var i = 0; i < length; ++i) { + buffer[i] = a[i] ^ b[i] + } + + return buffer +} + +}).call(this,require("buffer").Buffer) +},{"buffer":69}],69:[function(require,module,exports){ +/*! + * The buffer module from node.js, for the browser. + * + * @author Feross Aboukhadijeh + * @license MIT + */ +/* eslint-disable no-proto */ + +'use strict' + +var base64 = require('base64-js') +var ieee754 = require('ieee754') + +exports.Buffer = Buffer +exports.SlowBuffer = SlowBuffer +exports.INSPECT_MAX_BYTES = 50 + +var K_MAX_LENGTH = 0x7fffffff +exports.kMaxLength = K_MAX_LENGTH + +/** + * If `Buffer.TYPED_ARRAY_SUPPORT`: + * === true Use Uint8Array implementation (fastest) + * === false Print warning and recommend using `buffer` v4.x which has an Object + * implementation (most compatible, even IE6) + * + * Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+, + * Opera 11.6+, iOS 4.2+. + * + * We report that the browser does not support typed arrays if the are not subclassable + * using __proto__. Firefox 4-29 lacks support for adding new properties to `Uint8Array` + * (See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438). IE 10 lacks support + * for __proto__ and has a buggy typed array implementation. + */ +Buffer.TYPED_ARRAY_SUPPORT = typedArraySupport() + +if (!Buffer.TYPED_ARRAY_SUPPORT && typeof console !== 'undefined' && + typeof console.error === 'function') { + console.error( + 'This browser lacks typed array (Uint8Array) support which is required by ' + + '`buffer` v5.x. Use `buffer` v4.x if you require old browser support.' + ) +} + +function typedArraySupport () { + // Can typed array instances can be augmented? + try { + var arr = new Uint8Array(1) + arr.__proto__ = {__proto__: Uint8Array.prototype, foo: function () { return 42 }} + return arr.foo() === 42 + } catch (e) { + return false + } +} + +function createBuffer (length) { + if (length > K_MAX_LENGTH) { + throw new RangeError('Invalid typed array length') + } + // Return an augmented `Uint8Array` instance + var buf = new Uint8Array(length) + buf.__proto__ = Buffer.prototype + return buf +} + +/** + * The Buffer constructor returns instances of `Uint8Array` that have their + * prototype changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of + * `Uint8Array`, so the returned instances will have all the node `Buffer` methods + * and the `Uint8Array` methods. Square bracket notation works as expected -- it + * returns a single octet. + * + * The `Uint8Array` prototype remains unmodified. + */ + +function Buffer (arg, encodingOrOffset, length) { + // Common case. + if (typeof arg === 'number') { + if (typeof encodingOrOffset === 'string') { + throw new Error( + 'If encoding is specified then the first argument must be a string' + ) + } + return allocUnsafe(arg) + } + return from(arg, encodingOrOffset, length) +} + +// Fix subarray() in ES2016. See: https://github.com/feross/buffer/pull/97 +if (typeof Symbol !== 'undefined' && Symbol.species && + Buffer[Symbol.species] === Buffer) { + Object.defineProperty(Buffer, Symbol.species, { + value: null, + configurable: true, + enumerable: false, + writable: false + }) +} + +Buffer.poolSize = 8192 // not used by this implementation + +function from (value, encodingOrOffset, length) { + if (typeof value === 'number') { + throw new TypeError('"value" argument must not be a number') + } + + if (value instanceof ArrayBuffer) { + return fromArrayBuffer(value, encodingOrOffset, length) + } + + if (typeof value === 'string') { + return fromString(value, encodingOrOffset) + } + + return fromObject(value) +} + +/** + * Functionally equivalent to Buffer(arg, encoding) but throws a TypeError + * if value is a number. + * Buffer.from(str[, encoding]) + * Buffer.from(array) + * Buffer.from(buffer) + * Buffer.from(arrayBuffer[, byteOffset[, length]]) + **/ +Buffer.from = function (value, encodingOrOffset, length) { + return from(value, encodingOrOffset, length) +} + +// Note: Change prototype *after* Buffer.from is defined to workaround Chrome bug: +// https://github.com/feross/buffer/pull/148 +Buffer.prototype.__proto__ = Uint8Array.prototype +Buffer.__proto__ = Uint8Array + +function assertSize (size) { + if (typeof size !== 'number') { + throw new TypeError('"size" argument must be a number') + } else if (size < 0) { + throw new RangeError('"size" argument must not be negative') + } +} + +function alloc (size, fill, encoding) { + assertSize(size) + if (size <= 0) { + return createBuffer(size) + } + if (fill !== undefined) { + // Only pay attention to encoding if it's a string. This + // prevents accidentally sending in a number that would + // be interpretted as a start offset. + return typeof encoding === 'string' + ? createBuffer(size).fill(fill, encoding) + : createBuffer(size).fill(fill) + } + return createBuffer(size) +} + +/** + * Creates a new filled Buffer instance. + * alloc(size[, fill[, encoding]]) + **/ +Buffer.alloc = function (size, fill, encoding) { + return alloc(size, fill, encoding) +} + +function allocUnsafe (size) { + assertSize(size) + return createBuffer(size < 0 ? 0 : checked(size) | 0) +} + +/** + * Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance. + * */ +Buffer.allocUnsafe = function (size) { + return allocUnsafe(size) +} +/** + * Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance. + */ +Buffer.allocUnsafeSlow = function (size) { + return allocUnsafe(size) +} + +function fromString (string, encoding) { + if (typeof encoding !== 'string' || encoding === '') { + encoding = 'utf8' + } + + if (!Buffer.isEncoding(encoding)) { + throw new TypeError('"encoding" must be a valid string encoding') + } + + var length = byteLength(string, encoding) | 0 + var buf = createBuffer(length) + + var actual = buf.write(string, encoding) + + if (actual !== length) { + // Writing a hex string, for example, that contains invalid characters will + // cause everything after the first invalid character to be ignored. (e.g. + // 'abxxcd' will be treated as 'ab') + buf = buf.slice(0, actual) + } + + return buf +} + +function fromArrayLike (array) { + var length = array.length < 0 ? 0 : checked(array.length) | 0 + var buf = createBuffer(length) + for (var i = 0; i < length; i += 1) { + buf[i] = array[i] & 255 + } + return buf +} + +function fromArrayBuffer (array, byteOffset, length) { + if (byteOffset < 0 || array.byteLength < byteOffset) { + throw new RangeError('\'offset\' is out of bounds') + } + + if (array.byteLength < byteOffset + (length || 0)) { + throw new RangeError('\'length\' is out of bounds') + } + + var buf + if (byteOffset === undefined && length === undefined) { + buf = new Uint8Array(array) + } else if (length === undefined) { + buf = new Uint8Array(array, byteOffset) + } else { + buf = new Uint8Array(array, byteOffset, length) + } + + // Return an augmented `Uint8Array` instance + buf.__proto__ = Buffer.prototype + return buf +} + +function fromObject (obj) { + if (Buffer.isBuffer(obj)) { + var len = checked(obj.length) | 0 + var buf = createBuffer(len) + + if (buf.length === 0) { + return buf + } + + obj.copy(buf, 0, 0, len) + return buf + } + + if (obj) { + if (isArrayBufferView(obj) || 'length' in obj) { + if (typeof obj.length !== 'number' || numberIsNaN(obj.length)) { + return createBuffer(0) + } + return fromArrayLike(obj) + } + + if (obj.type === 'Buffer' && Array.isArray(obj.data)) { + return fromArrayLike(obj.data) + } + } + + throw new TypeError('First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object.') +} + +function checked (length) { + // Note: cannot use `length < K_MAX_LENGTH` here because that fails when + // length is NaN (which is otherwise coerced to zero.) + if (length >= K_MAX_LENGTH) { + throw new RangeError('Attempt to allocate Buffer larger than maximum ' + + 'size: 0x' + K_MAX_LENGTH.toString(16) + ' bytes') + } + return length | 0 +} + +function SlowBuffer (length) { + if (+length != length) { // eslint-disable-line eqeqeq + length = 0 + } + return Buffer.alloc(+length) +} + +Buffer.isBuffer = function isBuffer (b) { + return b != null && b._isBuffer === true +} + +Buffer.compare = function compare (a, b) { + if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) { + throw new TypeError('Arguments must be Buffers') + } + + if (a === b) return 0 + + var x = a.length + var y = b.length + + for (var i = 0, len = Math.min(x, y); i < len; ++i) { + if (a[i] !== b[i]) { + x = a[i] + y = b[i] + break + } + } + + if (x < y) return -1 + if (y < x) return 1 + return 0 +} + +Buffer.isEncoding = function isEncoding (encoding) { + switch (String(encoding).toLowerCase()) { + case 'hex': + case 'utf8': + case 'utf-8': + case 'ascii': + case 'latin1': + case 'binary': + case 'base64': + case 'ucs2': + case 'ucs-2': + case 'utf16le': + case 'utf-16le': + return true + default: + return false + } +} + +Buffer.concat = function concat (list, length) { + if (!Array.isArray(list)) { + throw new TypeError('"list" argument must be an Array of Buffers') + } + + if (list.length === 0) { + return Buffer.alloc(0) + } + + var i + if (length === undefined) { + length = 0 + for (i = 0; i < list.length; ++i) { + length += list[i].length + } + } + + var buffer = Buffer.allocUnsafe(length) + var pos = 0 + for (i = 0; i < list.length; ++i) { + var buf = list[i] + if (!Buffer.isBuffer(buf)) { + throw new TypeError('"list" argument must be an Array of Buffers') + } + buf.copy(buffer, pos) + pos += buf.length + } + return buffer +} + +function byteLength (string, encoding) { + if (Buffer.isBuffer(string)) { + return string.length + } + if (isArrayBufferView(string) || string instanceof ArrayBuffer) { + return string.byteLength + } + if (typeof string !== 'string') { + string = '' + string + } + + var len = string.length + if (len === 0) return 0 + + // Use a for loop to avoid recursion + var loweredCase = false + for (;;) { + switch (encoding) { + case 'ascii': + case 'latin1': + case 'binary': + return len + case 'utf8': + case 'utf-8': + case undefined: + return utf8ToBytes(string).length + case 'ucs2': + case 'ucs-2': + case 'utf16le': + case 'utf-16le': + return len * 2 + case 'hex': + return len >>> 1 + case 'base64': + return base64ToBytes(string).length + default: + if (loweredCase) return utf8ToBytes(string).length // assume utf8 + encoding = ('' + encoding).toLowerCase() + loweredCase = true + } + } +} +Buffer.byteLength = byteLength + +function slowToString (encoding, start, end) { + var loweredCase = false + + // No need to verify that "this.length <= MAX_UINT32" since it's a read-only + // property of a typed array. + + // This behaves neither like String nor Uint8Array in that we set start/end + // to their upper/lower bounds if the value passed is out of range. + // undefined is handled specially as per ECMA-262 6th Edition, + // Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization. + if (start === undefined || start < 0) { + start = 0 + } + // Return early if start > this.length. Done here to prevent potential uint32 + // coercion fail below. + if (start > this.length) { + return '' + } + + if (end === undefined || end > this.length) { + end = this.length + } + + if (end <= 0) { + return '' + } + + // Force coersion to uint32. This will also coerce falsey/NaN values to 0. + end >>>= 0 + start >>>= 0 + + if (end <= start) { + return '' + } + + if (!encoding) encoding = 'utf8' + + while (true) { + switch (encoding) { + case 'hex': + return hexSlice(this, start, end) + + case 'utf8': + case 'utf-8': + return utf8Slice(this, start, end) + + case 'ascii': + return asciiSlice(this, start, end) + + case 'latin1': + case 'binary': + return latin1Slice(this, start, end) + + case 'base64': + return base64Slice(this, start, end) + + case 'ucs2': + case 'ucs-2': + case 'utf16le': + case 'utf-16le': + return utf16leSlice(this, start, end) + + default: + if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding) + encoding = (encoding + '').toLowerCase() + loweredCase = true + } + } +} + +// This property is used by `Buffer.isBuffer` (and the `is-buffer` npm package) +// to detect a Buffer instance. It's not possible to use `instanceof Buffer` +// reliably in a browserify context because there could be multiple different +// copies of the 'buffer' package in use. This method works even for Buffer +// instances that were created from another copy of the `buffer` package. +// See: https://github.com/feross/buffer/issues/154 +Buffer.prototype._isBuffer = true + +function swap (b, n, m) { + var i = b[n] + b[n] = b[m] + b[m] = i +} + +Buffer.prototype.swap16 = function swap16 () { + var len = this.length + if (len % 2 !== 0) { + throw new RangeError('Buffer size must be a multiple of 16-bits') + } + for (var i = 0; i < len; i += 2) { + swap(this, i, i + 1) + } + return this +} + +Buffer.prototype.swap32 = function swap32 () { + var len = this.length + if (len % 4 !== 0) { + throw new RangeError('Buffer size must be a multiple of 32-bits') + } + for (var i = 0; i < len; i += 4) { + swap(this, i, i + 3) + swap(this, i + 1, i + 2) + } + return this +} + +Buffer.prototype.swap64 = function swap64 () { + var len = this.length + if (len % 8 !== 0) { + throw new RangeError('Buffer size must be a multiple of 64-bits') + } + for (var i = 0; i < len; i += 8) { + swap(this, i, i + 7) + swap(this, i + 1, i + 6) + swap(this, i + 2, i + 5) + swap(this, i + 3, i + 4) + } + return this +} + +Buffer.prototype.toString = function toString () { + var length = this.length + if (length === 0) return '' + if (arguments.length === 0) return utf8Slice(this, 0, length) + return slowToString.apply(this, arguments) +} + +Buffer.prototype.equals = function equals (b) { + if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer') + if (this === b) return true + return Buffer.compare(this, b) === 0 +} + +Buffer.prototype.inspect = function inspect () { + var str = '' + var max = exports.INSPECT_MAX_BYTES + if (this.length > 0) { + str = this.toString('hex', 0, max).match(/.{2}/g).join(' ') + if (this.length > max) str += ' ... ' + } + return '' +} + +Buffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) { + if (!Buffer.isBuffer(target)) { + throw new TypeError('Argument must be a Buffer') + } + + if (start === undefined) { + start = 0 + } + if (end === undefined) { + end = target ? target.length : 0 + } + if (thisStart === undefined) { + thisStart = 0 + } + if (thisEnd === undefined) { + thisEnd = this.length + } + + if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) { + throw new RangeError('out of range index') + } + + if (thisStart >= thisEnd && start >= end) { + return 0 + } + if (thisStart >= thisEnd) { + return -1 + } + if (start >= end) { + return 1 + } + + start >>>= 0 + end >>>= 0 + thisStart >>>= 0 + thisEnd >>>= 0 + + if (this === target) return 0 + + var x = thisEnd - thisStart + var y = end - start + var len = Math.min(x, y) + + var thisCopy = this.slice(thisStart, thisEnd) + var targetCopy = target.slice(start, end) + + for (var i = 0; i < len; ++i) { + if (thisCopy[i] !== targetCopy[i]) { + x = thisCopy[i] + y = targetCopy[i] + break + } + } + + if (x < y) return -1 + if (y < x) return 1 + return 0 +} + +// Finds either the first index of `val` in `buffer` at offset >= `byteOffset`, +// OR the last index of `val` in `buffer` at offset <= `byteOffset`. +// +// Arguments: +// - buffer - a Buffer to search +// - val - a string, Buffer, or number +// - byteOffset - an index into `buffer`; will be clamped to an int32 +// - encoding - an optional encoding, relevant is val is a string +// - dir - true for indexOf, false for lastIndexOf +function bidirectionalIndexOf (buffer, val, byteOffset, encoding, dir) { + // Empty buffer means no match + if (buffer.length === 0) return -1 + + // Normalize byteOffset + if (typeof byteOffset === 'string') { + encoding = byteOffset + byteOffset = 0 + } else if (byteOffset > 0x7fffffff) { + byteOffset = 0x7fffffff + } else if (byteOffset < -0x80000000) { + byteOffset = -0x80000000 + } + byteOffset = +byteOffset // Coerce to Number. + if (numberIsNaN(byteOffset)) { + // byteOffset: it it's undefined, null, NaN, "foo", etc, search whole buffer + byteOffset = dir ? 0 : (buffer.length - 1) + } + + // Normalize byteOffset: negative offsets start from the end of the buffer + if (byteOffset < 0) byteOffset = buffer.length + byteOffset + if (byteOffset >= buffer.length) { + if (dir) return -1 + else byteOffset = buffer.length - 1 + } else if (byteOffset < 0) { + if (dir) byteOffset = 0 + else return -1 + } + + // Normalize val + if (typeof val === 'string') { + val = Buffer.from(val, encoding) + } + + // Finally, search either indexOf (if dir is true) or lastIndexOf + if (Buffer.isBuffer(val)) { + // Special case: looking for empty string/buffer always fails + if (val.length === 0) { + return -1 + } + return arrayIndexOf(buffer, val, byteOffset, encoding, dir) + } else if (typeof val === 'number') { + val = val & 0xFF // Search for a byte value [0-255] + if (typeof Uint8Array.prototype.indexOf === 'function') { + if (dir) { + return Uint8Array.prototype.indexOf.call(buffer, val, byteOffset) + } else { + return Uint8Array.prototype.lastIndexOf.call(buffer, val, byteOffset) + } + } + return arrayIndexOf(buffer, [ val ], byteOffset, encoding, dir) + } + + throw new TypeError('val must be string, number or Buffer') +} + +function arrayIndexOf (arr, val, byteOffset, encoding, dir) { + var indexSize = 1 + var arrLength = arr.length + var valLength = val.length + + if (encoding !== undefined) { + encoding = String(encoding).toLowerCase() + if (encoding === 'ucs2' || encoding === 'ucs-2' || + encoding === 'utf16le' || encoding === 'utf-16le') { + if (arr.length < 2 || val.length < 2) { + return -1 + } + indexSize = 2 + arrLength /= 2 + valLength /= 2 + byteOffset /= 2 + } + } + + function read (buf, i) { + if (indexSize === 1) { + return buf[i] + } else { + return buf.readUInt16BE(i * indexSize) + } + } + + var i + if (dir) { + var foundIndex = -1 + for (i = byteOffset; i < arrLength; i++) { + if (read(arr, i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) { + if (foundIndex === -1) foundIndex = i + if (i - foundIndex + 1 === valLength) return foundIndex * indexSize + } else { + if (foundIndex !== -1) i -= i - foundIndex + foundIndex = -1 + } + } + } else { + if (byteOffset + valLength > arrLength) byteOffset = arrLength - valLength + for (i = byteOffset; i >= 0; i--) { + var found = true + for (var j = 0; j < valLength; j++) { + if (read(arr, i + j) !== read(val, j)) { + found = false + break + } + } + if (found) return i + } + } + + return -1 +} + +Buffer.prototype.includes = function includes (val, byteOffset, encoding) { + return this.indexOf(val, byteOffset, encoding) !== -1 +} + +Buffer.prototype.indexOf = function indexOf (val, byteOffset, encoding) { + return bidirectionalIndexOf(this, val, byteOffset, encoding, true) +} + +Buffer.prototype.lastIndexOf = function lastIndexOf (val, byteOffset, encoding) { + return bidirectionalIndexOf(this, val, byteOffset, encoding, false) +} + +function hexWrite (buf, string, offset, length) { + offset = Number(offset) || 0 + var remaining = buf.length - offset + if (!length) { + length = remaining + } else { + length = Number(length) + if (length > remaining) { + length = remaining + } + } + + // must be an even number of digits + var strLen = string.length + if (strLen % 2 !== 0) throw new TypeError('Invalid hex string') + + if (length > strLen / 2) { + length = strLen / 2 + } + for (var i = 0; i < length; ++i) { + var parsed = parseInt(string.substr(i * 2, 2), 16) + if (numberIsNaN(parsed)) return i + buf[offset + i] = parsed + } + return i +} + +function utf8Write (buf, string, offset, length) { + return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length) +} + +function asciiWrite (buf, string, offset, length) { + return blitBuffer(asciiToBytes(string), buf, offset, length) +} + +function latin1Write (buf, string, offset, length) { + return asciiWrite(buf, string, offset, length) +} + +function base64Write (buf, string, offset, length) { + return blitBuffer(base64ToBytes(string), buf, offset, length) +} + +function ucs2Write (buf, string, offset, length) { + return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length) +} + +Buffer.prototype.write = function write (string, offset, length, encoding) { + // Buffer#write(string) + if (offset === undefined) { + encoding = 'utf8' + length = this.length + offset = 0 + // Buffer#write(string, encoding) + } else if (length === undefined && typeof offset === 'string') { + encoding = offset + length = this.length + offset = 0 + // Buffer#write(string, offset[, length][, encoding]) + } else if (isFinite(offset)) { + offset = offset >>> 0 + if (isFinite(length)) { + length = length >>> 0 + if (encoding === undefined) encoding = 'utf8' + } else { + encoding = length + length = undefined + } + } else { + throw new Error( + 'Buffer.write(string, encoding, offset[, length]) is no longer supported' + ) + } + + var remaining = this.length - offset + if (length === undefined || length > remaining) length = remaining + + if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) { + throw new RangeError('Attempt to write outside buffer bounds') + } + + if (!encoding) encoding = 'utf8' + + var loweredCase = false + for (;;) { + switch (encoding) { + case 'hex': + return hexWrite(this, string, offset, length) + + case 'utf8': + case 'utf-8': + return utf8Write(this, string, offset, length) + + case 'ascii': + return asciiWrite(this, string, offset, length) + + case 'latin1': + case 'binary': + return latin1Write(this, string, offset, length) + + case 'base64': + // Warning: maxLength not taken into account in base64Write + return base64Write(this, string, offset, length) + + case 'ucs2': + case 'ucs-2': + case 'utf16le': + case 'utf-16le': + return ucs2Write(this, string, offset, length) + + default: + if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding) + encoding = ('' + encoding).toLowerCase() + loweredCase = true + } + } +} + +Buffer.prototype.toJSON = function toJSON () { + return { + type: 'Buffer', + data: Array.prototype.slice.call(this._arr || this, 0) + } +} + +function base64Slice (buf, start, end) { + if (start === 0 && end === buf.length) { + return base64.fromByteArray(buf) + } else { + return base64.fromByteArray(buf.slice(start, end)) + } +} + +function utf8Slice (buf, start, end) { + end = Math.min(buf.length, end) + var res = [] + + var i = start + while (i < end) { + var firstByte = buf[i] + var codePoint = null + var bytesPerSequence = (firstByte > 0xEF) ? 4 + : (firstByte > 0xDF) ? 3 + : (firstByte > 0xBF) ? 2 + : 1 + + if (i + bytesPerSequence <= end) { + var secondByte, thirdByte, fourthByte, tempCodePoint + + switch (bytesPerSequence) { + case 1: + if (firstByte < 0x80) { + codePoint = firstByte + } + break + case 2: + secondByte = buf[i + 1] + if ((secondByte & 0xC0) === 0x80) { + tempCodePoint = (firstByte & 0x1F) << 0x6 | (secondByte & 0x3F) + if (tempCodePoint > 0x7F) { + codePoint = tempCodePoint + } + } + break + case 3: + secondByte = buf[i + 1] + thirdByte = buf[i + 2] + if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) { + tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | (thirdByte & 0x3F) + if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) { + codePoint = tempCodePoint + } + } + break + case 4: + secondByte = buf[i + 1] + thirdByte = buf[i + 2] + fourthByte = buf[i + 3] + if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) { + tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | (fourthByte & 0x3F) + if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) { + codePoint = tempCodePoint + } + } + } + } + + if (codePoint === null) { + // we did not generate a valid codePoint so insert a + // replacement char (U+FFFD) and advance only 1 byte + codePoint = 0xFFFD + bytesPerSequence = 1 + } else if (codePoint > 0xFFFF) { + // encode to utf16 (surrogate pair dance) + codePoint -= 0x10000 + res.push(codePoint >>> 10 & 0x3FF | 0xD800) + codePoint = 0xDC00 | codePoint & 0x3FF + } + + res.push(codePoint) + i += bytesPerSequence + } + + return decodeCodePointsArray(res) +} + +// Based on http://stackoverflow.com/a/22747272/680742, the browser with +// the lowest limit is Chrome, with 0x10000 args. +// We go 1 magnitude less, for safety +var MAX_ARGUMENTS_LENGTH = 0x1000 + +function decodeCodePointsArray (codePoints) { + var len = codePoints.length + if (len <= MAX_ARGUMENTS_LENGTH) { + return String.fromCharCode.apply(String, codePoints) // avoid extra slice() + } + + // Decode in chunks to avoid "call stack size exceeded". + var res = '' + var i = 0 + while (i < len) { + res += String.fromCharCode.apply( + String, + codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH) + ) + } + return res +} + +function asciiSlice (buf, start, end) { + var ret = '' + end = Math.min(buf.length, end) + + for (var i = start; i < end; ++i) { + ret += String.fromCharCode(buf[i] & 0x7F) + } + return ret +} + +function latin1Slice (buf, start, end) { + var ret = '' + end = Math.min(buf.length, end) + + for (var i = start; i < end; ++i) { + ret += String.fromCharCode(buf[i]) + } + return ret +} + +function hexSlice (buf, start, end) { + var len = buf.length + + if (!start || start < 0) start = 0 + if (!end || end < 0 || end > len) end = len + + var out = '' + for (var i = start; i < end; ++i) { + out += toHex(buf[i]) + } + return out +} + +function utf16leSlice (buf, start, end) { + var bytes = buf.slice(start, end) + var res = '' + for (var i = 0; i < bytes.length; i += 2) { + res += String.fromCharCode(bytes[i] + (bytes[i + 1] * 256)) + } + return res +} + +Buffer.prototype.slice = function slice (start, end) { + var len = this.length + start = ~~start + end = end === undefined ? len : ~~end + + if (start < 0) { + start += len + if (start < 0) start = 0 + } else if (start > len) { + start = len + } + + if (end < 0) { + end += len + if (end < 0) end = 0 + } else if (end > len) { + end = len + } + + if (end < start) end = start + + var newBuf = this.subarray(start, end) + // Return an augmented `Uint8Array` instance + newBuf.__proto__ = Buffer.prototype + return newBuf +} + +/* + * Need to make sure that buffer isn't trying to write out of bounds. + */ +function checkOffset (offset, ext, length) { + if ((offset % 1) !== 0 || offset < 0) throw new RangeError('offset is not uint') + if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length') +} + +Buffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) { + offset = offset >>> 0 + byteLength = byteLength >>> 0 + if (!noAssert) checkOffset(offset, byteLength, this.length) + + var val = this[offset] + var mul = 1 + var i = 0 + while (++i < byteLength && (mul *= 0x100)) { + val += this[offset + i] * mul + } + + return val +} + +Buffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) { + offset = offset >>> 0 + byteLength = byteLength >>> 0 + if (!noAssert) { + checkOffset(offset, byteLength, this.length) + } + + var val = this[offset + --byteLength] + var mul = 1 + while (byteLength > 0 && (mul *= 0x100)) { + val += this[offset + --byteLength] * mul + } + + return val +} + +Buffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 1, this.length) + return this[offset] +} + +Buffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 2, this.length) + return this[offset] | (this[offset + 1] << 8) +} + +Buffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 2, this.length) + return (this[offset] << 8) | this[offset + 1] +} + +Buffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 4, this.length) + + return ((this[offset]) | + (this[offset + 1] << 8) | + (this[offset + 2] << 16)) + + (this[offset + 3] * 0x1000000) +} + +Buffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 4, this.length) + + return (this[offset] * 0x1000000) + + ((this[offset + 1] << 16) | + (this[offset + 2] << 8) | + this[offset + 3]) +} + +Buffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) { + offset = offset >>> 0 + byteLength = byteLength >>> 0 + if (!noAssert) checkOffset(offset, byteLength, this.length) + + var val = this[offset] + var mul = 1 + var i = 0 + while (++i < byteLength && (mul *= 0x100)) { + val += this[offset + i] * mul + } + mul *= 0x80 + + if (val >= mul) val -= Math.pow(2, 8 * byteLength) + + return val +} + +Buffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) { + offset = offset >>> 0 + byteLength = byteLength >>> 0 + if (!noAssert) checkOffset(offset, byteLength, this.length) + + var i = byteLength + var mul = 1 + var val = this[offset + --i] + while (i > 0 && (mul *= 0x100)) { + val += this[offset + --i] * mul + } + mul *= 0x80 + + if (val >= mul) val -= Math.pow(2, 8 * byteLength) + + return val +} + +Buffer.prototype.readInt8 = function readInt8 (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 1, this.length) + if (!(this[offset] & 0x80)) return (this[offset]) + return ((0xff - this[offset] + 1) * -1) +} + +Buffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 2, this.length) + var val = this[offset] | (this[offset + 1] << 8) + return (val & 0x8000) ? val | 0xFFFF0000 : val +} + +Buffer.prototype.readInt16BE = function readInt16BE (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 2, this.length) + var val = this[offset + 1] | (this[offset] << 8) + return (val & 0x8000) ? val | 0xFFFF0000 : val +} + +Buffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 4, this.length) + + return (this[offset]) | + (this[offset + 1] << 8) | + (this[offset + 2] << 16) | + (this[offset + 3] << 24) +} + +Buffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 4, this.length) + + return (this[offset] << 24) | + (this[offset + 1] << 16) | + (this[offset + 2] << 8) | + (this[offset + 3]) +} + +Buffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 4, this.length) + return ieee754.read(this, offset, true, 23, 4) +} + +Buffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 4, this.length) + return ieee754.read(this, offset, false, 23, 4) +} + +Buffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 8, this.length) + return ieee754.read(this, offset, true, 52, 8) +} + +Buffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 8, this.length) + return ieee754.read(this, offset, false, 52, 8) +} + +function checkInt (buf, value, offset, ext, max, min) { + if (!Buffer.isBuffer(buf)) throw new TypeError('"buffer" argument must be a Buffer instance') + if (value > max || value < min) throw new RangeError('"value" argument is out of bounds') + if (offset + ext > buf.length) throw new RangeError('Index out of range') +} + +Buffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) { + value = +value + offset = offset >>> 0 + byteLength = byteLength >>> 0 + if (!noAssert) { + var maxBytes = Math.pow(2, 8 * byteLength) - 1 + checkInt(this, value, offset, byteLength, maxBytes, 0) + } + + var mul = 1 + var i = 0 + this[offset] = value & 0xFF + while (++i < byteLength && (mul *= 0x100)) { + this[offset + i] = (value / mul) & 0xFF + } + + return offset + byteLength +} + +Buffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) { + value = +value + offset = offset >>> 0 + byteLength = byteLength >>> 0 + if (!noAssert) { + var maxBytes = Math.pow(2, 8 * byteLength) - 1 + checkInt(this, value, offset, byteLength, maxBytes, 0) + } + + var i = byteLength - 1 + var mul = 1 + this[offset + i] = value & 0xFF + while (--i >= 0 && (mul *= 0x100)) { + this[offset + i] = (value / mul) & 0xFF + } + + return offset + byteLength +} + +Buffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0) + this[offset] = (value & 0xff) + return offset + 1 +} + +Buffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0) + this[offset] = (value & 0xff) + this[offset + 1] = (value >>> 8) + return offset + 2 +} + +Buffer.prototype.writeUInt16BE = function writeUInt16BE (value, offset, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0) + this[offset] = (value >>> 8) + this[offset + 1] = (value & 0xff) + return offset + 2 +} + +Buffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0) + this[offset + 3] = (value >>> 24) + this[offset + 2] = (value >>> 16) + this[offset + 1] = (value >>> 8) + this[offset] = (value & 0xff) + return offset + 4 +} + +Buffer.prototype.writeUInt32BE = function writeUInt32BE (value, offset, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0) + this[offset] = (value >>> 24) + this[offset + 1] = (value >>> 16) + this[offset + 2] = (value >>> 8) + this[offset + 3] = (value & 0xff) + return offset + 4 +} + +Buffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) { + var limit = Math.pow(2, (8 * byteLength) - 1) + + checkInt(this, value, offset, byteLength, limit - 1, -limit) + } + + var i = 0 + var mul = 1 + var sub = 0 + this[offset] = value & 0xFF + while (++i < byteLength && (mul *= 0x100)) { + if (value < 0 && sub === 0 && this[offset + i - 1] !== 0) { + sub = 1 + } + this[offset + i] = ((value / mul) >> 0) - sub & 0xFF + } + + return offset + byteLength +} + +Buffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) { + var limit = Math.pow(2, (8 * byteLength) - 1) + + checkInt(this, value, offset, byteLength, limit - 1, -limit) + } + + var i = byteLength - 1 + var mul = 1 + var sub = 0 + this[offset + i] = value & 0xFF + while (--i >= 0 && (mul *= 0x100)) { + if (value < 0 && sub === 0 && this[offset + i + 1] !== 0) { + sub = 1 + } + this[offset + i] = ((value / mul) >> 0) - sub & 0xFF + } + + return offset + byteLength +} + +Buffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80) + if (value < 0) value = 0xff + value + 1 + this[offset] = (value & 0xff) + return offset + 1 +} + +Buffer.prototype.writeInt16LE = function writeInt16LE (value, offset, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000) + this[offset] = (value & 0xff) + this[offset + 1] = (value >>> 8) + return offset + 2 +} + +Buffer.prototype.writeInt16BE = function writeInt16BE (value, offset, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000) + this[offset] = (value >>> 8) + this[offset + 1] = (value & 0xff) + return offset + 2 +} + +Buffer.prototype.writeInt32LE = function writeInt32LE (value, offset, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000) + this[offset] = (value & 0xff) + this[offset + 1] = (value >>> 8) + this[offset + 2] = (value >>> 16) + this[offset + 3] = (value >>> 24) + return offset + 4 +} + +Buffer.prototype.writeInt32BE = function writeInt32BE (value, offset, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000) + if (value < 0) value = 0xffffffff + value + 1 + this[offset] = (value >>> 24) + this[offset + 1] = (value >>> 16) + this[offset + 2] = (value >>> 8) + this[offset + 3] = (value & 0xff) + return offset + 4 +} + +function checkIEEE754 (buf, value, offset, ext, max, min) { + if (offset + ext > buf.length) throw new RangeError('Index out of range') + if (offset < 0) throw new RangeError('Index out of range') +} + +function writeFloat (buf, value, offset, littleEndian, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) { + checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38) + } + ieee754.write(buf, value, offset, littleEndian, 23, 4) + return offset + 4 +} + +Buffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) { + return writeFloat(this, value, offset, true, noAssert) +} + +Buffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) { + return writeFloat(this, value, offset, false, noAssert) +} + +function writeDouble (buf, value, offset, littleEndian, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) { + checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308) + } + ieee754.write(buf, value, offset, littleEndian, 52, 8) + return offset + 8 +} + +Buffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) { + return writeDouble(this, value, offset, true, noAssert) +} + +Buffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) { + return writeDouble(this, value, offset, false, noAssert) +} + +// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length) +Buffer.prototype.copy = function copy (target, targetStart, start, end) { + if (!start) start = 0 + if (!end && end !== 0) end = this.length + if (targetStart >= target.length) targetStart = target.length + if (!targetStart) targetStart = 0 + if (end > 0 && end < start) end = start + + // Copy 0 bytes; we're done + if (end === start) return 0 + if (target.length === 0 || this.length === 0) return 0 + + // Fatal error conditions + if (targetStart < 0) { + throw new RangeError('targetStart out of bounds') + } + if (start < 0 || start >= this.length) throw new RangeError('sourceStart out of bounds') + if (end < 0) throw new RangeError('sourceEnd out of bounds') + + // Are we oob? + if (end > this.length) end = this.length + if (target.length - targetStart < end - start) { + end = target.length - targetStart + start + } + + var len = end - start + var i + + if (this === target && start < targetStart && targetStart < end) { + // descending copy from end + for (i = len - 1; i >= 0; --i) { + target[i + targetStart] = this[i + start] + } + } else if (len < 1000) { + // ascending copy from start + for (i = 0; i < len; ++i) { + target[i + targetStart] = this[i + start] + } + } else { + Uint8Array.prototype.set.call( + target, + this.subarray(start, start + len), + targetStart + ) + } + + return len +} + +// Usage: +// buffer.fill(number[, offset[, end]]) +// buffer.fill(buffer[, offset[, end]]) +// buffer.fill(string[, offset[, end]][, encoding]) +Buffer.prototype.fill = function fill (val, start, end, encoding) { + // Handle string cases: + if (typeof val === 'string') { + if (typeof start === 'string') { + encoding = start + start = 0 + end = this.length + } else if (typeof end === 'string') { + encoding = end + end = this.length + } + if (val.length === 1) { + var code = val.charCodeAt(0) + if (code < 256) { + val = code + } + } + if (encoding !== undefined && typeof encoding !== 'string') { + throw new TypeError('encoding must be a string') + } + if (typeof encoding === 'string' && !Buffer.isEncoding(encoding)) { + throw new TypeError('Unknown encoding: ' + encoding) + } + } else if (typeof val === 'number') { + val = val & 255 + } + + // Invalid ranges are not set to a default, so can range check early. + if (start < 0 || this.length < start || this.length < end) { + throw new RangeError('Out of range index') + } + + if (end <= start) { + return this + } + + start = start >>> 0 + end = end === undefined ? this.length : end >>> 0 + + if (!val) val = 0 + + var i + if (typeof val === 'number') { + for (i = start; i < end; ++i) { + this[i] = val + } + } else { + var bytes = Buffer.isBuffer(val) + ? val + : new Buffer(val, encoding) + var len = bytes.length + for (i = 0; i < end - start; ++i) { + this[i + start] = bytes[i % len] + } + } + + return this +} + +// HELPER FUNCTIONS +// ================ + +var INVALID_BASE64_RE = /[^+/0-9A-Za-z-_]/g + +function base64clean (str) { + // Node strips out invalid characters like \n and \t from the string, base64-js does not + str = str.trim().replace(INVALID_BASE64_RE, '') + // Node converts strings with length < 2 to '' + if (str.length < 2) return '' + // Node allows for non-padded base64 strings (missing trailing ===), base64-js does not + while (str.length % 4 !== 0) { + str = str + '=' + } + return str +} + +function toHex (n) { + if (n < 16) return '0' + n.toString(16) + return n.toString(16) +} + +function utf8ToBytes (string, units) { + units = units || Infinity + var codePoint + var length = string.length + var leadSurrogate = null + var bytes = [] + + for (var i = 0; i < length; ++i) { + codePoint = string.charCodeAt(i) + + // is surrogate component + if (codePoint > 0xD7FF && codePoint < 0xE000) { + // last char was a lead + if (!leadSurrogate) { + // no lead yet + if (codePoint > 0xDBFF) { + // unexpected trail + if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD) + continue + } else if (i + 1 === length) { + // unpaired lead + if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD) + continue + } + + // valid lead + leadSurrogate = codePoint + + continue + } + + // 2 leads in a row + if (codePoint < 0xDC00) { + if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD) + leadSurrogate = codePoint + continue + } + + // valid surrogate pair + codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000 + } else if (leadSurrogate) { + // valid bmp char, but last char was a lead + if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD) + } + + leadSurrogate = null + + // encode utf8 + if (codePoint < 0x80) { + if ((units -= 1) < 0) break + bytes.push(codePoint) + } else if (codePoint < 0x800) { + if ((units -= 2) < 0) break + bytes.push( + codePoint >> 0x6 | 0xC0, + codePoint & 0x3F | 0x80 + ) + } else if (codePoint < 0x10000) { + if ((units -= 3) < 0) break + bytes.push( + codePoint >> 0xC | 0xE0, + codePoint >> 0x6 & 0x3F | 0x80, + codePoint & 0x3F | 0x80 + ) + } else if (codePoint < 0x110000) { + if ((units -= 4) < 0) break + bytes.push( + codePoint >> 0x12 | 0xF0, + codePoint >> 0xC & 0x3F | 0x80, + codePoint >> 0x6 & 0x3F | 0x80, + codePoint & 0x3F | 0x80 + ) + } else { + throw new Error('Invalid code point') + } + } + + return bytes +} + +function asciiToBytes (str) { + var byteArray = [] + for (var i = 0; i < str.length; ++i) { + // Node's code seems to be doing this and not & 0x7F.. + byteArray.push(str.charCodeAt(i) & 0xFF) + } + return byteArray +} + +function utf16leToBytes (str, units) { + var c, hi, lo + var byteArray = [] + for (var i = 0; i < str.length; ++i) { + if ((units -= 2) < 0) break + + c = str.charCodeAt(i) + hi = c >> 8 + lo = c % 256 + byteArray.push(lo) + byteArray.push(hi) + } + + return byteArray +} + +function base64ToBytes (str) { + return base64.toByteArray(base64clean(str)) +} + +function blitBuffer (src, dst, offset, length) { + for (var i = 0; i < length; ++i) { + if ((i + offset >= dst.length) || (i >= src.length)) break + dst[i + offset] = src[i] + } + return i +} + +// Node 0.10 supports `ArrayBuffer` but lacks `ArrayBuffer.isView` +function isArrayBufferView (obj) { + return (typeof ArrayBuffer.isView === 'function') && ArrayBuffer.isView(obj) +} + +function numberIsNaN (obj) { + return obj !== obj // eslint-disable-line no-self-compare +} + +},{"base64-js":39,"ieee754":121}],70:[function(require,module,exports){ +(function (Buffer){ +var Transform = require('stream').Transform +var inherits = require('inherits') +var StringDecoder = require('string_decoder').StringDecoder +module.exports = CipherBase +inherits(CipherBase, Transform) +function CipherBase (hashMode) { + Transform.call(this) + this.hashMode = typeof hashMode === 'string' + if (this.hashMode) { + this[hashMode] = this._finalOrDigest + } else { + this.final = this._finalOrDigest + } + this._decoder = null + this._encoding = null +} +CipherBase.prototype.update = function (data, inputEnc, outputEnc) { + if (typeof data === 'string') { + data = new Buffer(data, inputEnc) + } + var outData = this._update(data) + if (this.hashMode) { + return this + } + if (outputEnc) { + outData = this._toString(outData, outputEnc) + } + return outData +} + +CipherBase.prototype.setAutoPadding = function () {} + +CipherBase.prototype.getAuthTag = function () { + throw new Error('trying to get auth tag in unsupported state') +} + +CipherBase.prototype.setAuthTag = function () { + throw new Error('trying to set auth tag in unsupported state') +} + +CipherBase.prototype.setAAD = function () { + throw new Error('trying to set aad in unsupported state') +} + +CipherBase.prototype._transform = function (data, _, next) { + var err + try { + if (this.hashMode) { + this._update(data) + } else { + this.push(this._update(data)) + } + } catch (e) { + err = e + } finally { + next(err) + } +} +CipherBase.prototype._flush = function (done) { + var err + try { + this.push(this._final()) + } catch (e) { + err = e + } finally { + done(err) + } +} +CipherBase.prototype._finalOrDigest = function (outputEnc) { + var outData = this._final() || new Buffer('') + if (outputEnc) { + outData = this._toString(outData, outputEnc, true) + } + return outData +} + +CipherBase.prototype._toString = function (value, enc, fin) { + if (!this._decoder) { + this._decoder = new StringDecoder(enc) + this._encoding = enc + } + if (this._encoding !== enc) { + throw new Error('can\'t switch encodings') + } + var out = this._decoder.write(value) + if (fin) { + out += this._decoder.end() + } + return out +} + +}).call(this,require("buffer").Buffer) +},{"buffer":69,"inherits":123,"stream":171,"string_decoder":172}],71:[function(require,module,exports){ +(function (Buffer){ +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +// NOTE: These type checking functions intentionally don't use `instanceof` +// because it is fragile and can be easily faked with `Object.create()`. + +function isArray(arg) { + if (Array.isArray) { + return Array.isArray(arg); + } + return objectToString(arg) === '[object Array]'; +} +exports.isArray = isArray; + +function isBoolean(arg) { + return typeof arg === 'boolean'; +} +exports.isBoolean = isBoolean; + +function isNull(arg) { + return arg === null; +} +exports.isNull = isNull; + +function isNullOrUndefined(arg) { + return arg == null; +} +exports.isNullOrUndefined = isNullOrUndefined; + +function isNumber(arg) { + return typeof arg === 'number'; +} +exports.isNumber = isNumber; + +function isString(arg) { + return typeof arg === 'string'; +} +exports.isString = isString; + +function isSymbol(arg) { + return typeof arg === 'symbol'; +} +exports.isSymbol = isSymbol; + +function isUndefined(arg) { + return arg === void 0; +} +exports.isUndefined = isUndefined; + +function isRegExp(re) { + return objectToString(re) === '[object RegExp]'; +} +exports.isRegExp = isRegExp; + +function isObject(arg) { + return typeof arg === 'object' && arg !== null; +} +exports.isObject = isObject; + +function isDate(d) { + return objectToString(d) === '[object Date]'; +} +exports.isDate = isDate; + +function isError(e) { + return (objectToString(e) === '[object Error]' || e instanceof Error); +} +exports.isError = isError; + +function isFunction(arg) { + return typeof arg === 'function'; +} +exports.isFunction = isFunction; + +function isPrimitive(arg) { + return arg === null || + typeof arg === 'boolean' || + typeof arg === 'number' || + typeof arg === 'string' || + typeof arg === 'symbol' || // ES6 symbol + typeof arg === 'undefined'; +} +exports.isPrimitive = isPrimitive; + +exports.isBuffer = Buffer.isBuffer; + +function objectToString(o) { + return Object.prototype.toString.call(o); +} + +}).call(this,{"isBuffer":require("../../is-buffer/index.js")}) +},{"../../is-buffer/index.js":124}],72:[function(require,module,exports){ +(function (Buffer){ +var elliptic = require('elliptic'); +var BN = require('bn.js'); + +module.exports = function createECDH(curve) { + return new ECDH(curve); +}; + +var aliases = { + secp256k1: { + name: 'secp256k1', + byteLength: 32 + }, + secp224r1: { + name: 'p224', + byteLength: 28 + }, + prime256v1: { + name: 'p256', + byteLength: 32 + }, + prime192v1: { + name: 'p192', + byteLength: 24 + }, + ed25519: { + name: 'ed25519', + byteLength: 32 + }, + secp384r1: { + name: 'p384', + byteLength: 48 + }, + secp521r1: { + name: 'p521', + byteLength: 66 + } +}; + +aliases.p224 = aliases.secp224r1; +aliases.p256 = aliases.secp256r1 = aliases.prime256v1; +aliases.p192 = aliases.secp192r1 = aliases.prime192v1; +aliases.p384 = aliases.secp384r1; +aliases.p521 = aliases.secp521r1; + +function ECDH(curve) { + this.curveType = aliases[curve]; + if (!this.curveType ) { + this.curveType = { + name: curve + }; + } + this.curve = new elliptic.ec(this.curveType.name); + this.keys = void 0; +} + +ECDH.prototype.generateKeys = function (enc, format) { + this.keys = this.curve.genKeyPair(); + return this.getPublicKey(enc, format); +}; + +ECDH.prototype.computeSecret = function (other, inenc, enc) { + inenc = inenc || 'utf8'; + if (!Buffer.isBuffer(other)) { + other = new Buffer(other, inenc); + } + var otherPub = this.curve.keyFromPublic(other).getPublic(); + var out = otherPub.mul(this.keys.getPrivate()).getX(); + return formatReturnValue(out, enc, this.curveType.byteLength); +}; + +ECDH.prototype.getPublicKey = function (enc, format) { + var key = this.keys.getPublic(format === 'compressed', true); + if (format === 'hybrid') { + if (key[key.length - 1] % 2) { + key[0] = 7; + } else { + key [0] = 6; + } + } + return formatReturnValue(key, enc); +}; + +ECDH.prototype.getPrivateKey = function (enc) { + return formatReturnValue(this.keys.getPrivate(), enc); +}; + +ECDH.prototype.setPublicKey = function (pub, enc) { + enc = enc || 'utf8'; + if (!Buffer.isBuffer(pub)) { + pub = new Buffer(pub, enc); + } + this.keys._importPublic(pub); + return this; +}; + +ECDH.prototype.setPrivateKey = function (priv, enc) { + enc = enc || 'utf8'; + if (!Buffer.isBuffer(priv)) { + priv = new Buffer(priv, enc); + } + var _priv = new BN(priv); + _priv = _priv.toString(16); + this.keys._importPrivate(_priv); + return this; +}; + +function formatReturnValue(bn, enc, len) { + if (!Array.isArray(bn)) { + bn = bn.toArray(); + } + var buf = new Buffer(bn); + if (len && buf.length < len) { + var zeros = new Buffer(len - buf.length); + zeros.fill(0); + buf = Buffer.concat([zeros, buf]); + } + if (!enc) { + return buf; + } else { + return buf.toString(enc); + } +} + +}).call(this,require("buffer").Buffer) +},{"bn.js":40,"buffer":69,"elliptic":89}],73:[function(require,module,exports){ +(function (Buffer){ +'use strict' +var inherits = require('inherits') +var md5 = require('./md5') +var RIPEMD160 = require('ripemd160') +var sha = require('sha.js') + +var Base = require('cipher-base') + +function HashNoConstructor (hash) { + Base.call(this, 'digest') + + this._hash = hash + this.buffers = [] +} + +inherits(HashNoConstructor, Base) + +HashNoConstructor.prototype._update = function (data) { + this.buffers.push(data) +} + +HashNoConstructor.prototype._final = function () { + var buf = Buffer.concat(this.buffers) + var r = this._hash(buf) + this.buffers = null + + return r +} + +function Hash (hash) { + Base.call(this, 'digest') + + this._hash = hash +} + +inherits(Hash, Base) + +Hash.prototype._update = function (data) { + this._hash.update(data) +} + +Hash.prototype._final = function () { + return this._hash.digest() +} + +module.exports = function createHash (alg) { + alg = alg.toLowerCase() + if (alg === 'md5') return new HashNoConstructor(md5) + if (alg === 'rmd160' || alg === 'ripemd160') return new Hash(new RIPEMD160()) + + return new Hash(sha(alg)) +} + +}).call(this,require("buffer").Buffer) +},{"./md5":75,"buffer":69,"cipher-base":70,"inherits":123,"ripemd160":161,"sha.js":164}],74:[function(require,module,exports){ +arguments[4][9][0].apply(exports,arguments) +},{"buffer":69,"dup":9}],75:[function(require,module,exports){ +arguments[4][10][0].apply(exports,arguments) +},{"./make-hash":74,"dup":10}],76:[function(require,module,exports){ +'use strict' +var inherits = require('inherits') +var Legacy = require('./legacy') +var Base = require('cipher-base') +var Buffer = require('safe-buffer').Buffer +var md5 = require('create-hash/md5') +var RIPEMD160 = require('ripemd160') + +var sha = require('sha.js') + +var ZEROS = Buffer.alloc(128) + +function Hmac (alg, key) { + Base.call(this, 'digest') + if (typeof key === 'string') { + key = Buffer.from(key) + } + + var blocksize = (alg === 'sha512' || alg === 'sha384') ? 128 : 64 + + this._alg = alg + this._key = key + if (key.length > blocksize) { + var hash = alg === 'rmd160' ? new RIPEMD160() : sha(alg) + key = hash.update(key).digest() + } else if (key.length < blocksize) { + key = Buffer.concat([key, ZEROS], blocksize) + } + + var ipad = this._ipad = Buffer.allocUnsafe(blocksize) + var opad = this._opad = Buffer.allocUnsafe(blocksize) + + for (var i = 0; i < blocksize; i++) { + ipad[i] = key[i] ^ 0x36 + opad[i] = key[i] ^ 0x5C + } + this._hash = alg === 'rmd160' ? new RIPEMD160() : sha(alg) + this._hash.update(ipad) +} + +inherits(Hmac, Base) + +Hmac.prototype._update = function (data) { + this._hash.update(data) +} + +Hmac.prototype._final = function () { + var h = this._hash.digest() + var hash = this._alg === 'rmd160' ? new RIPEMD160() : sha(this._alg) + return hash.update(this._opad).update(h).digest() +} + +module.exports = function createHmac (alg, key) { + alg = alg.toLowerCase() + if (alg === 'rmd160' || alg === 'ripemd160') { + return new Hmac('rmd160', key) + } + if (alg === 'md5') { + return new Legacy(md5, key) + } + return new Hmac(alg, key) +} + +},{"./legacy":77,"cipher-base":70,"create-hash/md5":75,"inherits":123,"ripemd160":161,"safe-buffer":162,"sha.js":164}],77:[function(require,module,exports){ +'use strict' +var inherits = require('inherits') +var Buffer = require('safe-buffer').Buffer + +var Base = require('cipher-base') + +var ZEROS = Buffer.alloc(128) +var blocksize = 64 + +function Hmac (alg, key) { + Base.call(this, 'digest') + if (typeof key === 'string') { + key = Buffer.from(key) + } + + this._alg = alg + this._key = key + + if (key.length > blocksize) { + key = alg(key) + } else if (key.length < blocksize) { + key = Buffer.concat([key, ZEROS], blocksize) + } + + var ipad = this._ipad = Buffer.allocUnsafe(blocksize) + var opad = this._opad = Buffer.allocUnsafe(blocksize) + + for (var i = 0; i < blocksize; i++) { + ipad[i] = key[i] ^ 0x36 + opad[i] = key[i] ^ 0x5C + } + + this._hash = [ipad] +} + +inherits(Hmac, Base) + +Hmac.prototype._update = function (data) { + this._hash.push(data) +} + +Hmac.prototype._final = function () { + var h = this._alg(Buffer.concat(this._hash)) + return this._alg(Buffer.concat([this._opad, h])) +} +module.exports = Hmac + +},{"cipher-base":70,"inherits":123,"safe-buffer":162}],78:[function(require,module,exports){ +'use strict' + +exports.randomBytes = exports.rng = exports.pseudoRandomBytes = exports.prng = require('randombytes') +exports.createHash = exports.Hash = require('create-hash') +exports.createHmac = exports.Hmac = require('create-hmac') + +var hashes = ['sha1', 'sha224', 'sha256', 'sha384', 'sha512', 'md5', 'rmd160'].concat(Object.keys(require('browserify-sign/algos'))) +exports.getHashes = function () { + return hashes +} + +var p = require('pbkdf2') +exports.pbkdf2 = p.pbkdf2 +exports.pbkdf2Sync = p.pbkdf2Sync + +var aes = require('browserify-cipher') +;[ + 'Cipher', + 'createCipher', + 'Cipheriv', + 'createCipheriv', + 'Decipher', + 'createDecipher', + 'Decipheriv', + 'createDecipheriv', + 'getCiphers', + 'listCiphers' +].forEach(function (key) { + exports[key] = aes[key] +}) + +var dh = require('diffie-hellman') +;[ + 'DiffieHellmanGroup', + 'createDiffieHellmanGroup', + 'getDiffieHellman', + 'createDiffieHellman', + 'DiffieHellman' +].forEach(function (key) { + exports[key] = dh[key] +}) + +var sign = require('browserify-sign') +;[ + 'createSign', + 'Sign', + 'createVerify', + 'Verify' +].forEach(function (key) { + exports[key] = sign[key] +}) + +exports.createECDH = require('create-ecdh') + +var publicEncrypt = require('public-encrypt') + +;[ + 'publicEncrypt', + 'privateEncrypt', + 'publicDecrypt', + 'privateDecrypt' +].forEach(function (key) { + exports[key] = publicEncrypt[key] +}) + +// the least I can do is make error messages for the rest of the node.js/crypto api. +;[ + 'createCredentials' +].forEach(function (name) { + exports[name] = function () { + throw new Error([ + 'sorry, ' + name + ' is not implemented yet', + 'we accept pull requests', + 'https://github.com/crypto-browserify/crypto-browserify' + ].join('\n')) + } +}) + +},{"browserify-cipher":58,"browserify-sign":65,"browserify-sign/algos":62,"create-ecdh":72,"create-hash":73,"create-hmac":76,"diffie-hellman":85,"pbkdf2":134,"public-encrypt":141,"randombytes":147}],79:[function(require,module,exports){ +'use strict'; + +exports.utils = require('./des/utils'); +exports.Cipher = require('./des/cipher'); +exports.DES = require('./des/des'); +exports.CBC = require('./des/cbc'); +exports.EDE = require('./des/ede'); + +},{"./des/cbc":80,"./des/cipher":81,"./des/des":82,"./des/ede":83,"./des/utils":84}],80:[function(require,module,exports){ +'use strict'; + +var assert = require('minimalistic-assert'); +var inherits = require('inherits'); + +var proto = {}; + +function CBCState(iv) { + assert.equal(iv.length, 8, 'Invalid IV length'); + + this.iv = new Array(8); + for (var i = 0; i < this.iv.length; i++) + this.iv[i] = iv[i]; +} + +function instantiate(Base) { + function CBC(options) { + Base.call(this, options); + this._cbcInit(); + } + inherits(CBC, Base); + + var keys = Object.keys(proto); + for (var i = 0; i < keys.length; i++) { + var key = keys[i]; + CBC.prototype[key] = proto[key]; + } + + CBC.create = function create(options) { + return new CBC(options); + }; + + return CBC; +} + +exports.instantiate = instantiate; + +proto._cbcInit = function _cbcInit() { + var state = new CBCState(this.options.iv); + this._cbcState = state; +}; + +proto._update = function _update(inp, inOff, out, outOff) { + var state = this._cbcState; + var superProto = this.constructor.super_.prototype; + + var iv = state.iv; + if (this.type === 'encrypt') { + for (var i = 0; i < this.blockSize; i++) + iv[i] ^= inp[inOff + i]; + + superProto._update.call(this, iv, 0, out, outOff); + + for (var i = 0; i < this.blockSize; i++) + iv[i] = out[outOff + i]; + } else { + superProto._update.call(this, inp, inOff, out, outOff); + + for (var i = 0; i < this.blockSize; i++) + out[outOff + i] ^= iv[i]; + + for (var i = 0; i < this.blockSize; i++) + iv[i] = inp[inOff + i]; + } +}; + +},{"inherits":123,"minimalistic-assert":127}],81:[function(require,module,exports){ +'use strict'; + +var assert = require('minimalistic-assert'); + +function Cipher(options) { + this.options = options; + + this.type = this.options.type; + this.blockSize = 8; + this._init(); + + this.buffer = new Array(this.blockSize); + this.bufferOff = 0; +} +module.exports = Cipher; + +Cipher.prototype._init = function _init() { + // Might be overrided +}; + +Cipher.prototype.update = function update(data) { + if (data.length === 0) + return []; + + if (this.type === 'decrypt') + return this._updateDecrypt(data); + else + return this._updateEncrypt(data); +}; + +Cipher.prototype._buffer = function _buffer(data, off) { + // Append data to buffer + var min = Math.min(this.buffer.length - this.bufferOff, data.length - off); + for (var i = 0; i < min; i++) + this.buffer[this.bufferOff + i] = data[off + i]; + this.bufferOff += min; + + // Shift next + return min; +}; + +Cipher.prototype._flushBuffer = function _flushBuffer(out, off) { + this._update(this.buffer, 0, out, off); + this.bufferOff = 0; + return this.blockSize; +}; + +Cipher.prototype._updateEncrypt = function _updateEncrypt(data) { + var inputOff = 0; + var outputOff = 0; + + var count = ((this.bufferOff + data.length) / this.blockSize) | 0; + var out = new Array(count * this.blockSize); + + if (this.bufferOff !== 0) { + inputOff += this._buffer(data, inputOff); + + if (this.bufferOff === this.buffer.length) + outputOff += this._flushBuffer(out, outputOff); + } + + // Write blocks + var max = data.length - ((data.length - inputOff) % this.blockSize); + for (; inputOff < max; inputOff += this.blockSize) { + this._update(data, inputOff, out, outputOff); + outputOff += this.blockSize; + } + + // Queue rest + for (; inputOff < data.length; inputOff++, this.bufferOff++) + this.buffer[this.bufferOff] = data[inputOff]; + + return out; +}; + +Cipher.prototype._updateDecrypt = function _updateDecrypt(data) { + var inputOff = 0; + var outputOff = 0; + + var count = Math.ceil((this.bufferOff + data.length) / this.blockSize) - 1; + var out = new Array(count * this.blockSize); + + // TODO(indutny): optimize it, this is far from optimal + for (; count > 0; count--) { + inputOff += this._buffer(data, inputOff); + outputOff += this._flushBuffer(out, outputOff); + } + + // Buffer rest of the input + inputOff += this._buffer(data, inputOff); + + return out; +}; + +Cipher.prototype.final = function final(buffer) { + var first; + if (buffer) + first = this.update(buffer); + + var last; + if (this.type === 'encrypt') + last = this._finalEncrypt(); + else + last = this._finalDecrypt(); + + if (first) + return first.concat(last); + else + return last; +}; + +Cipher.prototype._pad = function _pad(buffer, off) { + if (off === 0) + return false; + + while (off < buffer.length) + buffer[off++] = 0; + + return true; +}; + +Cipher.prototype._finalEncrypt = function _finalEncrypt() { + if (!this._pad(this.buffer, this.bufferOff)) + return []; + + var out = new Array(this.blockSize); + this._update(this.buffer, 0, out, 0); + return out; +}; + +Cipher.prototype._unpad = function _unpad(buffer) { + return buffer; +}; + +Cipher.prototype._finalDecrypt = function _finalDecrypt() { + assert.equal(this.bufferOff, this.blockSize, 'Not enough data to decrypt'); + var out = new Array(this.blockSize); + this._flushBuffer(out, 0); + + return this._unpad(out); +}; + +},{"minimalistic-assert":127}],82:[function(require,module,exports){ +'use strict'; + +var assert = require('minimalistic-assert'); +var inherits = require('inherits'); + +var des = require('../des'); +var utils = des.utils; +var Cipher = des.Cipher; + +function DESState() { + this.tmp = new Array(2); + this.keys = null; +} + +function DES(options) { + Cipher.call(this, options); + + var state = new DESState(); + this._desState = state; + + this.deriveKeys(state, options.key); +} +inherits(DES, Cipher); +module.exports = DES; + +DES.create = function create(options) { + return new DES(options); +}; + +var shiftTable = [ + 1, 1, 2, 2, 2, 2, 2, 2, + 1, 2, 2, 2, 2, 2, 2, 1 +]; + +DES.prototype.deriveKeys = function deriveKeys(state, key) { + state.keys = new Array(16 * 2); + + assert.equal(key.length, this.blockSize, 'Invalid key length'); + + var kL = utils.readUInt32BE(key, 0); + var kR = utils.readUInt32BE(key, 4); + + utils.pc1(kL, kR, state.tmp, 0); + kL = state.tmp[0]; + kR = state.tmp[1]; + for (var i = 0; i < state.keys.length; i += 2) { + var shift = shiftTable[i >>> 1]; + kL = utils.r28shl(kL, shift); + kR = utils.r28shl(kR, shift); + utils.pc2(kL, kR, state.keys, i); + } +}; + +DES.prototype._update = function _update(inp, inOff, out, outOff) { + var state = this._desState; + + var l = utils.readUInt32BE(inp, inOff); + var r = utils.readUInt32BE(inp, inOff + 4); + + // Initial Permutation + utils.ip(l, r, state.tmp, 0); + l = state.tmp[0]; + r = state.tmp[1]; + + if (this.type === 'encrypt') + this._encrypt(state, l, r, state.tmp, 0); + else + this._decrypt(state, l, r, state.tmp, 0); + + l = state.tmp[0]; + r = state.tmp[1]; + + utils.writeUInt32BE(out, l, outOff); + utils.writeUInt32BE(out, r, outOff + 4); +}; + +DES.prototype._pad = function _pad(buffer, off) { + var value = buffer.length - off; + for (var i = off; i < buffer.length; i++) + buffer[i] = value; + + return true; +}; + +DES.prototype._unpad = function _unpad(buffer) { + var pad = buffer[buffer.length - 1]; + for (var i = buffer.length - pad; i < buffer.length; i++) + assert.equal(buffer[i], pad); + + return buffer.slice(0, buffer.length - pad); +}; + +DES.prototype._encrypt = function _encrypt(state, lStart, rStart, out, off) { + var l = lStart; + var r = rStart; + + // Apply f() x16 times + for (var i = 0; i < state.keys.length; i += 2) { + var keyL = state.keys[i]; + var keyR = state.keys[i + 1]; + + // f(r, k) + utils.expand(r, state.tmp, 0); + + keyL ^= state.tmp[0]; + keyR ^= state.tmp[1]; + var s = utils.substitute(keyL, keyR); + var f = utils.permute(s); + + var t = r; + r = (l ^ f) >>> 0; + l = t; + } + + // Reverse Initial Permutation + utils.rip(r, l, out, off); +}; + +DES.prototype._decrypt = function _decrypt(state, lStart, rStart, out, off) { + var l = rStart; + var r = lStart; + + // Apply f() x16 times + for (var i = state.keys.length - 2; i >= 0; i -= 2) { + var keyL = state.keys[i]; + var keyR = state.keys[i + 1]; + + // f(r, k) + utils.expand(l, state.tmp, 0); + + keyL ^= state.tmp[0]; + keyR ^= state.tmp[1]; + var s = utils.substitute(keyL, keyR); + var f = utils.permute(s); + + var t = l; + l = (r ^ f) >>> 0; + r = t; + } + + // Reverse Initial Permutation + utils.rip(l, r, out, off); +}; + +},{"../des":79,"inherits":123,"minimalistic-assert":127}],83:[function(require,module,exports){ +'use strict'; + +var assert = require('minimalistic-assert'); +var inherits = require('inherits'); + +var des = require('../des'); +var Cipher = des.Cipher; +var DES = des.DES; + +function EDEState(type, key) { + assert.equal(key.length, 24, 'Invalid key length'); + + var k1 = key.slice(0, 8); + var k2 = key.slice(8, 16); + var k3 = key.slice(16, 24); + + if (type === 'encrypt') { + this.ciphers = [ + DES.create({ type: 'encrypt', key: k1 }), + DES.create({ type: 'decrypt', key: k2 }), + DES.create({ type: 'encrypt', key: k3 }) + ]; + } else { + this.ciphers = [ + DES.create({ type: 'decrypt', key: k3 }), + DES.create({ type: 'encrypt', key: k2 }), + DES.create({ type: 'decrypt', key: k1 }) + ]; + } +} + +function EDE(options) { + Cipher.call(this, options); + + var state = new EDEState(this.type, this.options.key); + this._edeState = state; +} +inherits(EDE, Cipher); + +module.exports = EDE; + +EDE.create = function create(options) { + return new EDE(options); +}; + +EDE.prototype._update = function _update(inp, inOff, out, outOff) { + var state = this._edeState; + + state.ciphers[0]._update(inp, inOff, out, outOff); + state.ciphers[1]._update(out, outOff, out, outOff); + state.ciphers[2]._update(out, outOff, out, outOff); +}; + +EDE.prototype._pad = DES.prototype._pad; +EDE.prototype._unpad = DES.prototype._unpad; + +},{"../des":79,"inherits":123,"minimalistic-assert":127}],84:[function(require,module,exports){ +'use strict'; + +exports.readUInt32BE = function readUInt32BE(bytes, off) { + var res = (bytes[0 + off] << 24) | + (bytes[1 + off] << 16) | + (bytes[2 + off] << 8) | + bytes[3 + off]; + return res >>> 0; +}; + +exports.writeUInt32BE = function writeUInt32BE(bytes, value, off) { + bytes[0 + off] = value >>> 24; + bytes[1 + off] = (value >>> 16) & 0xff; + bytes[2 + off] = (value >>> 8) & 0xff; + bytes[3 + off] = value & 0xff; +}; + +exports.ip = function ip(inL, inR, out, off) { + var outL = 0; + var outR = 0; + + for (var i = 6; i >= 0; i -= 2) { + for (var j = 0; j <= 24; j += 8) { + outL <<= 1; + outL |= (inR >>> (j + i)) & 1; + } + for (var j = 0; j <= 24; j += 8) { + outL <<= 1; + outL |= (inL >>> (j + i)) & 1; + } + } + + for (var i = 6; i >= 0; i -= 2) { + for (var j = 1; j <= 25; j += 8) { + outR <<= 1; + outR |= (inR >>> (j + i)) & 1; + } + for (var j = 1; j <= 25; j += 8) { + outR <<= 1; + outR |= (inL >>> (j + i)) & 1; + } + } + + out[off + 0] = outL >>> 0; + out[off + 1] = outR >>> 0; +}; + +exports.rip = function rip(inL, inR, out, off) { + var outL = 0; + var outR = 0; + + for (var i = 0; i < 4; i++) { + for (var j = 24; j >= 0; j -= 8) { + outL <<= 1; + outL |= (inR >>> (j + i)) & 1; + outL <<= 1; + outL |= (inL >>> (j + i)) & 1; + } + } + for (var i = 4; i < 8; i++) { + for (var j = 24; j >= 0; j -= 8) { + outR <<= 1; + outR |= (inR >>> (j + i)) & 1; + outR <<= 1; + outR |= (inL >>> (j + i)) & 1; + } + } + + out[off + 0] = outL >>> 0; + out[off + 1] = outR >>> 0; +}; + +exports.pc1 = function pc1(inL, inR, out, off) { + var outL = 0; + var outR = 0; + + // 7, 15, 23, 31, 39, 47, 55, 63 + // 6, 14, 22, 30, 39, 47, 55, 63 + // 5, 13, 21, 29, 39, 47, 55, 63 + // 4, 12, 20, 28 + for (var i = 7; i >= 5; i--) { + for (var j = 0; j <= 24; j += 8) { + outL <<= 1; + outL |= (inR >> (j + i)) & 1; + } + for (var j = 0; j <= 24; j += 8) { + outL <<= 1; + outL |= (inL >> (j + i)) & 1; + } + } + for (var j = 0; j <= 24; j += 8) { + outL <<= 1; + outL |= (inR >> (j + i)) & 1; + } + + // 1, 9, 17, 25, 33, 41, 49, 57 + // 2, 10, 18, 26, 34, 42, 50, 58 + // 3, 11, 19, 27, 35, 43, 51, 59 + // 36, 44, 52, 60 + for (var i = 1; i <= 3; i++) { + for (var j = 0; j <= 24; j += 8) { + outR <<= 1; + outR |= (inR >> (j + i)) & 1; + } + for (var j = 0; j <= 24; j += 8) { + outR <<= 1; + outR |= (inL >> (j + i)) & 1; + } + } + for (var j = 0; j <= 24; j += 8) { + outR <<= 1; + outR |= (inL >> (j + i)) & 1; + } + + out[off + 0] = outL >>> 0; + out[off + 1] = outR >>> 0; +}; + +exports.r28shl = function r28shl(num, shift) { + return ((num << shift) & 0xfffffff) | (num >>> (28 - shift)); +}; + +var pc2table = [ + // inL => outL + 14, 11, 17, 4, 27, 23, 25, 0, + 13, 22, 7, 18, 5, 9, 16, 24, + 2, 20, 12, 21, 1, 8, 15, 26, + + // inR => outR + 15, 4, 25, 19, 9, 1, 26, 16, + 5, 11, 23, 8, 12, 7, 17, 0, + 22, 3, 10, 14, 6, 20, 27, 24 +]; + +exports.pc2 = function pc2(inL, inR, out, off) { + var outL = 0; + var outR = 0; + + var len = pc2table.length >>> 1; + for (var i = 0; i < len; i++) { + outL <<= 1; + outL |= (inL >>> pc2table[i]) & 0x1; + } + for (var i = len; i < pc2table.length; i++) { + outR <<= 1; + outR |= (inR >>> pc2table[i]) & 0x1; + } + + out[off + 0] = outL >>> 0; + out[off + 1] = outR >>> 0; +}; + +exports.expand = function expand(r, out, off) { + var outL = 0; + var outR = 0; + + outL = ((r & 1) << 5) | (r >>> 27); + for (var i = 23; i >= 15; i -= 4) { + outL <<= 6; + outL |= (r >>> i) & 0x3f; + } + for (var i = 11; i >= 3; i -= 4) { + outR |= (r >>> i) & 0x3f; + outR <<= 6; + } + outR |= ((r & 0x1f) << 1) | (r >>> 31); + + out[off + 0] = outL >>> 0; + out[off + 1] = outR >>> 0; +}; + +var sTable = [ + 14, 0, 4, 15, 13, 7, 1, 4, 2, 14, 15, 2, 11, 13, 8, 1, + 3, 10, 10, 6, 6, 12, 12, 11, 5, 9, 9, 5, 0, 3, 7, 8, + 4, 15, 1, 12, 14, 8, 8, 2, 13, 4, 6, 9, 2, 1, 11, 7, + 15, 5, 12, 11, 9, 3, 7, 14, 3, 10, 10, 0, 5, 6, 0, 13, + + 15, 3, 1, 13, 8, 4, 14, 7, 6, 15, 11, 2, 3, 8, 4, 14, + 9, 12, 7, 0, 2, 1, 13, 10, 12, 6, 0, 9, 5, 11, 10, 5, + 0, 13, 14, 8, 7, 10, 11, 1, 10, 3, 4, 15, 13, 4, 1, 2, + 5, 11, 8, 6, 12, 7, 6, 12, 9, 0, 3, 5, 2, 14, 15, 9, + + 10, 13, 0, 7, 9, 0, 14, 9, 6, 3, 3, 4, 15, 6, 5, 10, + 1, 2, 13, 8, 12, 5, 7, 14, 11, 12, 4, 11, 2, 15, 8, 1, + 13, 1, 6, 10, 4, 13, 9, 0, 8, 6, 15, 9, 3, 8, 0, 7, + 11, 4, 1, 15, 2, 14, 12, 3, 5, 11, 10, 5, 14, 2, 7, 12, + + 7, 13, 13, 8, 14, 11, 3, 5, 0, 6, 6, 15, 9, 0, 10, 3, + 1, 4, 2, 7, 8, 2, 5, 12, 11, 1, 12, 10, 4, 14, 15, 9, + 10, 3, 6, 15, 9, 0, 0, 6, 12, 10, 11, 1, 7, 13, 13, 8, + 15, 9, 1, 4, 3, 5, 14, 11, 5, 12, 2, 7, 8, 2, 4, 14, + + 2, 14, 12, 11, 4, 2, 1, 12, 7, 4, 10, 7, 11, 13, 6, 1, + 8, 5, 5, 0, 3, 15, 15, 10, 13, 3, 0, 9, 14, 8, 9, 6, + 4, 11, 2, 8, 1, 12, 11, 7, 10, 1, 13, 14, 7, 2, 8, 13, + 15, 6, 9, 15, 12, 0, 5, 9, 6, 10, 3, 4, 0, 5, 14, 3, + + 12, 10, 1, 15, 10, 4, 15, 2, 9, 7, 2, 12, 6, 9, 8, 5, + 0, 6, 13, 1, 3, 13, 4, 14, 14, 0, 7, 11, 5, 3, 11, 8, + 9, 4, 14, 3, 15, 2, 5, 12, 2, 9, 8, 5, 12, 15, 3, 10, + 7, 11, 0, 14, 4, 1, 10, 7, 1, 6, 13, 0, 11, 8, 6, 13, + + 4, 13, 11, 0, 2, 11, 14, 7, 15, 4, 0, 9, 8, 1, 13, 10, + 3, 14, 12, 3, 9, 5, 7, 12, 5, 2, 10, 15, 6, 8, 1, 6, + 1, 6, 4, 11, 11, 13, 13, 8, 12, 1, 3, 4, 7, 10, 14, 7, + 10, 9, 15, 5, 6, 0, 8, 15, 0, 14, 5, 2, 9, 3, 2, 12, + + 13, 1, 2, 15, 8, 13, 4, 8, 6, 10, 15, 3, 11, 7, 1, 4, + 10, 12, 9, 5, 3, 6, 14, 11, 5, 0, 0, 14, 12, 9, 7, 2, + 7, 2, 11, 1, 4, 14, 1, 7, 9, 4, 12, 10, 14, 8, 2, 13, + 0, 15, 6, 12, 10, 9, 13, 0, 15, 3, 3, 5, 5, 6, 8, 11 +]; + +exports.substitute = function substitute(inL, inR) { + var out = 0; + for (var i = 0; i < 4; i++) { + var b = (inL >>> (18 - i * 6)) & 0x3f; + var sb = sTable[i * 0x40 + b]; + + out <<= 4; + out |= sb; + } + for (var i = 0; i < 4; i++) { + var b = (inR >>> (18 - i * 6)) & 0x3f; + var sb = sTable[4 * 0x40 + i * 0x40 + b]; + + out <<= 4; + out |= sb; + } + return out >>> 0; +}; + +var permuteTable = [ + 16, 25, 12, 11, 3, 20, 4, 15, 31, 17, 9, 6, 27, 14, 1, 22, + 30, 24, 8, 18, 0, 5, 29, 23, 13, 19, 2, 26, 10, 21, 28, 7 +]; + +exports.permute = function permute(num) { + var out = 0; + for (var i = 0; i < permuteTable.length; i++) { + out <<= 1; + out |= (num >>> permuteTable[i]) & 0x1; + } + return out >>> 0; +}; + +exports.padSplit = function padSplit(num, size, group) { + var str = num.toString(2); + while (str.length < size) + str = '0' + str; + + var out = []; + for (var i = 0; i < size; i += group) + out.push(str.slice(i, i + group)); + return out.join(' '); +}; + +},{}],85:[function(require,module,exports){ +(function (Buffer){ +var generatePrime = require('./lib/generatePrime') +var primes = require('./lib/primes.json') + +var DH = require('./lib/dh') + +function getDiffieHellman (mod) { + var prime = new Buffer(primes[mod].prime, 'hex') + var gen = new Buffer(primes[mod].gen, 'hex') + + return new DH(prime, gen) +} + +var ENCODINGS = { + 'binary': true, 'hex': true, 'base64': true +} + +function createDiffieHellman (prime, enc, generator, genc) { + if (Buffer.isBuffer(enc) || ENCODINGS[enc] === undefined) { + return createDiffieHellman(prime, 'binary', enc, generator) + } + + enc = enc || 'binary' + genc = genc || 'binary' + generator = generator || new Buffer([2]) + + if (!Buffer.isBuffer(generator)) { + generator = new Buffer(generator, genc) + } + + if (typeof prime === 'number') { + return new DH(generatePrime(prime, generator), generator, true) + } + + if (!Buffer.isBuffer(prime)) { + prime = new Buffer(prime, enc) + } + + return new DH(prime, generator, true) +} + +exports.DiffieHellmanGroup = exports.createDiffieHellmanGroup = exports.getDiffieHellman = getDiffieHellman +exports.createDiffieHellman = exports.DiffieHellman = createDiffieHellman + +}).call(this,require("buffer").Buffer) +},{"./lib/dh":86,"./lib/generatePrime":87,"./lib/primes.json":88,"buffer":69}],86:[function(require,module,exports){ +(function (Buffer){ +var BN = require('bn.js'); +var MillerRabin = require('miller-rabin'); +var millerRabin = new MillerRabin(); +var TWENTYFOUR = new BN(24); +var ELEVEN = new BN(11); +var TEN = new BN(10); +var THREE = new BN(3); +var SEVEN = new BN(7); +var primes = require('./generatePrime'); +var randomBytes = require('randombytes'); +module.exports = DH; + +function setPublicKey(pub, enc) { + enc = enc || 'utf8'; + if (!Buffer.isBuffer(pub)) { + pub = new Buffer(pub, enc); + } + this._pub = new BN(pub); + return this; +} + +function setPrivateKey(priv, enc) { + enc = enc || 'utf8'; + if (!Buffer.isBuffer(priv)) { + priv = new Buffer(priv, enc); + } + this._priv = new BN(priv); + return this; +} + +var primeCache = {}; +function checkPrime(prime, generator) { + var gen = generator.toString('hex'); + var hex = [gen, prime.toString(16)].join('_'); + if (hex in primeCache) { + return primeCache[hex]; + } + var error = 0; + + if (prime.isEven() || + !primes.simpleSieve || + !primes.fermatTest(prime) || + !millerRabin.test(prime)) { + //not a prime so +1 + error += 1; + + if (gen === '02' || gen === '05') { + // we'd be able to check the generator + // it would fail so +8 + error += 8; + } else { + //we wouldn't be able to test the generator + // so +4 + error += 4; + } + primeCache[hex] = error; + return error; + } + if (!millerRabin.test(prime.shrn(1))) { + //not a safe prime + error += 2; + } + var rem; + switch (gen) { + case '02': + if (prime.mod(TWENTYFOUR).cmp(ELEVEN)) { + // unsuidable generator + error += 8; + } + break; + case '05': + rem = prime.mod(TEN); + if (rem.cmp(THREE) && rem.cmp(SEVEN)) { + // prime mod 10 needs to equal 3 or 7 + error += 8; + } + break; + default: + error += 4; + } + primeCache[hex] = error; + return error; +} + +function DH(prime, generator, malleable) { + this.setGenerator(generator); + this.__prime = new BN(prime); + this._prime = BN.mont(this.__prime); + this._primeLen = prime.length; + this._pub = undefined; + this._priv = undefined; + this._primeCode = undefined; + if (malleable) { + this.setPublicKey = setPublicKey; + this.setPrivateKey = setPrivateKey; + } else { + this._primeCode = 8; + } +} +Object.defineProperty(DH.prototype, 'verifyError', { + enumerable: true, + get: function () { + if (typeof this._primeCode !== 'number') { + this._primeCode = checkPrime(this.__prime, this.__gen); + } + return this._primeCode; + } +}); +DH.prototype.generateKeys = function () { + if (!this._priv) { + this._priv = new BN(randomBytes(this._primeLen)); + } + this._pub = this._gen.toRed(this._prime).redPow(this._priv).fromRed(); + return this.getPublicKey(); +}; + +DH.prototype.computeSecret = function (other) { + other = new BN(other); + other = other.toRed(this._prime); + var secret = other.redPow(this._priv).fromRed(); + var out = new Buffer(secret.toArray()); + var prime = this.getPrime(); + if (out.length < prime.length) { + var front = new Buffer(prime.length - out.length); + front.fill(0); + out = Buffer.concat([front, out]); + } + return out; +}; + +DH.prototype.getPublicKey = function getPublicKey(enc) { + return formatReturnValue(this._pub, enc); +}; + +DH.prototype.getPrivateKey = function getPrivateKey(enc) { + return formatReturnValue(this._priv, enc); +}; + +DH.prototype.getPrime = function (enc) { + return formatReturnValue(this.__prime, enc); +}; + +DH.prototype.getGenerator = function (enc) { + return formatReturnValue(this._gen, enc); +}; + +DH.prototype.setGenerator = function (gen, enc) { + enc = enc || 'utf8'; + if (!Buffer.isBuffer(gen)) { + gen = new Buffer(gen, enc); + } + this.__gen = gen; + this._gen = new BN(gen); + return this; +}; + +function formatReturnValue(bn, enc) { + var buf = new Buffer(bn.toArray()); + if (!enc) { + return buf; + } else { + return buf.toString(enc); + } +} + +}).call(this,require("buffer").Buffer) +},{"./generatePrime":87,"bn.js":40,"buffer":69,"miller-rabin":126,"randombytes":147}],87:[function(require,module,exports){ +var randomBytes = require('randombytes'); +module.exports = findPrime; +findPrime.simpleSieve = simpleSieve; +findPrime.fermatTest = fermatTest; +var BN = require('bn.js'); +var TWENTYFOUR = new BN(24); +var MillerRabin = require('miller-rabin'); +var millerRabin = new MillerRabin(); +var ONE = new BN(1); +var TWO = new BN(2); +var FIVE = new BN(5); +var SIXTEEN = new BN(16); +var EIGHT = new BN(8); +var TEN = new BN(10); +var THREE = new BN(3); +var SEVEN = new BN(7); +var ELEVEN = new BN(11); +var FOUR = new BN(4); +var TWELVE = new BN(12); +var primes = null; + +function _getPrimes() { + if (primes !== null) + return primes; + + var limit = 0x100000; + var res = []; + res[0] = 2; + for (var i = 1, k = 3; k < limit; k += 2) { + var sqrt = Math.ceil(Math.sqrt(k)); + for (var j = 0; j < i && res[j] <= sqrt; j++) + if (k % res[j] === 0) + break; + + if (i !== j && res[j] <= sqrt) + continue; + + res[i++] = k; + } + primes = res; + return res; +} + +function simpleSieve(p) { + var primes = _getPrimes(); + + for (var i = 0; i < primes.length; i++) + if (p.modn(primes[i]) === 0) { + if (p.cmpn(primes[i]) === 0) { + return true; + } else { + return false; + } + } + + return true; +} + +function fermatTest(p) { + var red = BN.mont(p); + return TWO.toRed(red).redPow(p.subn(1)).fromRed().cmpn(1) === 0; +} + +function findPrime(bits, gen) { + if (bits < 16) { + // this is what openssl does + if (gen === 2 || gen === 5) { + return new BN([0x8c, 0x7b]); + } else { + return new BN([0x8c, 0x27]); + } + } + gen = new BN(gen); + + var num, n2; + + while (true) { + num = new BN(randomBytes(Math.ceil(bits / 8))); + while (num.bitLength() > bits) { + num.ishrn(1); + } + if (num.isEven()) { + num.iadd(ONE); + } + if (!num.testn(1)) { + num.iadd(TWO); + } + if (!gen.cmp(TWO)) { + while (num.mod(TWENTYFOUR).cmp(ELEVEN)) { + num.iadd(FOUR); + } + } else if (!gen.cmp(FIVE)) { + while (num.mod(TEN).cmp(THREE)) { + num.iadd(FOUR); + } + } + n2 = num.shrn(1); + if (simpleSieve(n2) && simpleSieve(num) && + fermatTest(n2) && fermatTest(num) && + millerRabin.test(n2) && millerRabin.test(num)) { + return num; + } + } + +} + +},{"bn.js":40,"miller-rabin":126,"randombytes":147}],88:[function(require,module,exports){ +module.exports={ + "modp1": { + "gen": "02", + "prime": "ffffffffffffffffc90fdaa22168c234c4c6628b80dc1cd129024e088a67cc74020bbea63b139b22514a08798e3404ddef9519b3cd3a431b302b0a6df25f14374fe1356d6d51c245e485b576625e7ec6f44c42e9a63a3620ffffffffffffffff" + }, + "modp2": { + "gen": "02", + "prime": "ffffffffffffffffc90fdaa22168c234c4c6628b80dc1cd129024e088a67cc74020bbea63b139b22514a08798e3404ddef9519b3cd3a431b302b0a6df25f14374fe1356d6d51c245e485b576625e7ec6f44c42e9a637ed6b0bff5cb6f406b7edee386bfb5a899fa5ae9f24117c4b1fe649286651ece65381ffffffffffffffff" + }, + "modp5": { + "gen": "02", + "prime": "ffffffffffffffffc90fdaa22168c234c4c6628b80dc1cd129024e088a67cc74020bbea63b139b22514a08798e3404ddef9519b3cd3a431b302b0a6df25f14374fe1356d6d51c245e485b576625e7ec6f44c42e9a637ed6b0bff5cb6f406b7edee386bfb5a899fa5ae9f24117c4b1fe649286651ece45b3dc2007cb8a163bf0598da48361c55d39a69163fa8fd24cf5f83655d23dca3ad961c62f356208552bb9ed529077096966d670c354e4abc9804f1746c08ca237327ffffffffffffffff" + }, + "modp14": { + "gen": "02", + "prime": "ffffffffffffffffc90fdaa22168c234c4c6628b80dc1cd129024e088a67cc74020bbea63b139b22514a08798e3404ddef9519b3cd3a431b302b0a6df25f14374fe1356d6d51c245e485b576625e7ec6f44c42e9a637ed6b0bff5cb6f406b7edee386bfb5a899fa5ae9f24117c4b1fe649286651ece45b3dc2007cb8a163bf0598da48361c55d39a69163fa8fd24cf5f83655d23dca3ad961c62f356208552bb9ed529077096966d670c354e4abc9804f1746c08ca18217c32905e462e36ce3be39e772c180e86039b2783a2ec07a28fb5c55df06f4c52c9de2bcbf6955817183995497cea956ae515d2261898fa051015728e5a8aacaa68ffffffffffffffff" + }, + "modp15": { + "gen": "02", + "prime": "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" + }, + "modp16": { + "gen": "02", + "prime": "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" + }, + "modp17": { + "gen": "02", + "prime": "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" + }, + "modp18": { + "gen": "02", + "prime": "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" + } +} +},{}],89:[function(require,module,exports){ +'use strict'; + +var elliptic = exports; + +elliptic.version = require('../package.json').version; +elliptic.utils = require('./elliptic/utils'); +elliptic.rand = require('brorand'); +elliptic.curve = require('./elliptic/curve'); +elliptic.curves = require('./elliptic/curves'); + +// Protocols +elliptic.ec = require('./elliptic/ec'); +elliptic.eddsa = require('./elliptic/eddsa'); + +},{"../package.json":104,"./elliptic/curve":92,"./elliptic/curves":95,"./elliptic/ec":96,"./elliptic/eddsa":99,"./elliptic/utils":103,"brorand":41}],90:[function(require,module,exports){ +'use strict'; + +var BN = require('bn.js'); +var elliptic = require('../../elliptic'); +var utils = elliptic.utils; +var getNAF = utils.getNAF; +var getJSF = utils.getJSF; +var assert = utils.assert; + +function BaseCurve(type, conf) { + this.type = type; + this.p = new BN(conf.p, 16); + + // Use Montgomery, when there is no fast reduction for the prime + this.red = conf.prime ? BN.red(conf.prime) : BN.mont(this.p); + + // Useful for many curves + this.zero = new BN(0).toRed(this.red); + this.one = new BN(1).toRed(this.red); + this.two = new BN(2).toRed(this.red); + + // Curve configuration, optional + this.n = conf.n && new BN(conf.n, 16); + this.g = conf.g && this.pointFromJSON(conf.g, conf.gRed); + + // Temporary arrays + this._wnafT1 = new Array(4); + this._wnafT2 = new Array(4); + this._wnafT3 = new Array(4); + this._wnafT4 = new Array(4); + + // Generalized Greg Maxwell's trick + var adjustCount = this.n && this.p.div(this.n); + if (!adjustCount || adjustCount.cmpn(100) > 0) { + this.redN = null; + } else { + this._maxwellTrick = true; + this.redN = this.n.toRed(this.red); + } +} +module.exports = BaseCurve; + +BaseCurve.prototype.point = function point() { + throw new Error('Not implemented'); +}; + +BaseCurve.prototype.validate = function validate() { + throw new Error('Not implemented'); +}; + +BaseCurve.prototype._fixedNafMul = function _fixedNafMul(p, k) { + assert(p.precomputed); + var doubles = p._getDoubles(); + + var naf = getNAF(k, 1); + var I = (1 << (doubles.step + 1)) - (doubles.step % 2 === 0 ? 2 : 1); + I /= 3; + + // Translate into more windowed form + var repr = []; + for (var j = 0; j < naf.length; j += doubles.step) { + var nafW = 0; + for (var k = j + doubles.step - 1; k >= j; k--) + nafW = (nafW << 1) + naf[k]; + repr.push(nafW); + } + + var a = this.jpoint(null, null, null); + var b = this.jpoint(null, null, null); + for (var i = I; i > 0; i--) { + for (var j = 0; j < repr.length; j++) { + var nafW = repr[j]; + if (nafW === i) + b = b.mixedAdd(doubles.points[j]); + else if (nafW === -i) + b = b.mixedAdd(doubles.points[j].neg()); + } + a = a.add(b); + } + return a.toP(); +}; + +BaseCurve.prototype._wnafMul = function _wnafMul(p, k) { + var w = 4; + + // Precompute window + var nafPoints = p._getNAFPoints(w); + w = nafPoints.wnd; + var wnd = nafPoints.points; + + // Get NAF form + var naf = getNAF(k, w); + + // Add `this`*(N+1) for every w-NAF index + var acc = this.jpoint(null, null, null); + for (var i = naf.length - 1; i >= 0; i--) { + // Count zeroes + for (var k = 0; i >= 0 && naf[i] === 0; i--) + k++; + if (i >= 0) + k++; + acc = acc.dblp(k); + + if (i < 0) + break; + var z = naf[i]; + assert(z !== 0); + if (p.type === 'affine') { + // J +- P + if (z > 0) + acc = acc.mixedAdd(wnd[(z - 1) >> 1]); + else + acc = acc.mixedAdd(wnd[(-z - 1) >> 1].neg()); + } else { + // J +- J + if (z > 0) + acc = acc.add(wnd[(z - 1) >> 1]); + else + acc = acc.add(wnd[(-z - 1) >> 1].neg()); + } + } + return p.type === 'affine' ? acc.toP() : acc; +}; + +BaseCurve.prototype._wnafMulAdd = function _wnafMulAdd(defW, + points, + coeffs, + len, + jacobianResult) { + var wndWidth = this._wnafT1; + var wnd = this._wnafT2; + var naf = this._wnafT3; + + // Fill all arrays + var max = 0; + for (var i = 0; i < len; i++) { + var p = points[i]; + var nafPoints = p._getNAFPoints(defW); + wndWidth[i] = nafPoints.wnd; + wnd[i] = nafPoints.points; + } + + // Comb small window NAFs + for (var i = len - 1; i >= 1; i -= 2) { + var a = i - 1; + var b = i; + if (wndWidth[a] !== 1 || wndWidth[b] !== 1) { + naf[a] = getNAF(coeffs[a], wndWidth[a]); + naf[b] = getNAF(coeffs[b], wndWidth[b]); + max = Math.max(naf[a].length, max); + max = Math.max(naf[b].length, max); + continue; + } + + var comb = [ + points[a], /* 1 */ + null, /* 3 */ + null, /* 5 */ + points[b] /* 7 */ + ]; + + // Try to avoid Projective points, if possible + if (points[a].y.cmp(points[b].y) === 0) { + comb[1] = points[a].add(points[b]); + comb[2] = points[a].toJ().mixedAdd(points[b].neg()); + } else if (points[a].y.cmp(points[b].y.redNeg()) === 0) { + comb[1] = points[a].toJ().mixedAdd(points[b]); + comb[2] = points[a].add(points[b].neg()); + } else { + comb[1] = points[a].toJ().mixedAdd(points[b]); + comb[2] = points[a].toJ().mixedAdd(points[b].neg()); + } + + var index = [ + -3, /* -1 -1 */ + -1, /* -1 0 */ + -5, /* -1 1 */ + -7, /* 0 -1 */ + 0, /* 0 0 */ + 7, /* 0 1 */ + 5, /* 1 -1 */ + 1, /* 1 0 */ + 3 /* 1 1 */ + ]; + + var jsf = getJSF(coeffs[a], coeffs[b]); + max = Math.max(jsf[0].length, max); + naf[a] = new Array(max); + naf[b] = new Array(max); + for (var j = 0; j < max; j++) { + var ja = jsf[0][j] | 0; + var jb = jsf[1][j] | 0; + + naf[a][j] = index[(ja + 1) * 3 + (jb + 1)]; + naf[b][j] = 0; + wnd[a] = comb; + } + } + + var acc = this.jpoint(null, null, null); + var tmp = this._wnafT4; + for (var i = max; i >= 0; i--) { + var k = 0; + + while (i >= 0) { + var zero = true; + for (var j = 0; j < len; j++) { + tmp[j] = naf[j][i] | 0; + if (tmp[j] !== 0) + zero = false; + } + if (!zero) + break; + k++; + i--; + } + if (i >= 0) + k++; + acc = acc.dblp(k); + if (i < 0) + break; + + for (var j = 0; j < len; j++) { + var z = tmp[j]; + var p; + if (z === 0) + continue; + else if (z > 0) + p = wnd[j][(z - 1) >> 1]; + else if (z < 0) + p = wnd[j][(-z - 1) >> 1].neg(); + + if (p.type === 'affine') + acc = acc.mixedAdd(p); + else + acc = acc.add(p); + } + } + // Zeroify references + for (var i = 0; i < len; i++) + wnd[i] = null; + + if (jacobianResult) + return acc; + else + return acc.toP(); +}; + +function BasePoint(curve, type) { + this.curve = curve; + this.type = type; + this.precomputed = null; +} +BaseCurve.BasePoint = BasePoint; + +BasePoint.prototype.eq = function eq(/*other*/) { + throw new Error('Not implemented'); +}; + +BasePoint.prototype.validate = function validate() { + return this.curve.validate(this); +}; + +BaseCurve.prototype.decodePoint = function decodePoint(bytes, enc) { + bytes = utils.toArray(bytes, enc); + + var len = this.p.byteLength(); + + // uncompressed, hybrid-odd, hybrid-even + if ((bytes[0] === 0x04 || bytes[0] === 0x06 || bytes[0] === 0x07) && + bytes.length - 1 === 2 * len) { + if (bytes[0] === 0x06) + assert(bytes[bytes.length - 1] % 2 === 0); + else if (bytes[0] === 0x07) + assert(bytes[bytes.length - 1] % 2 === 1); + + var res = this.point(bytes.slice(1, 1 + len), + bytes.slice(1 + len, 1 + 2 * len)); + + return res; + } else if ((bytes[0] === 0x02 || bytes[0] === 0x03) && + bytes.length - 1 === len) { + return this.pointFromX(bytes.slice(1, 1 + len), bytes[0] === 0x03); + } + throw new Error('Unknown point format'); +}; + +BasePoint.prototype.encodeCompressed = function encodeCompressed(enc) { + return this.encode(enc, true); +}; + +BasePoint.prototype._encode = function _encode(compact) { + var len = this.curve.p.byteLength(); + var x = this.getX().toArray('be', len); + + if (compact) + return [ this.getY().isEven() ? 0x02 : 0x03 ].concat(x); + + return [ 0x04 ].concat(x, this.getY().toArray('be', len)) ; +}; + +BasePoint.prototype.encode = function encode(enc, compact) { + return utils.encode(this._encode(compact), enc); +}; + +BasePoint.prototype.precompute = function precompute(power) { + if (this.precomputed) + return this; + + var precomputed = { + doubles: null, + naf: null, + beta: null + }; + precomputed.naf = this._getNAFPoints(8); + precomputed.doubles = this._getDoubles(4, power); + precomputed.beta = this._getBeta(); + this.precomputed = precomputed; + + return this; +}; + +BasePoint.prototype._hasDoubles = function _hasDoubles(k) { + if (!this.precomputed) + return false; + + var doubles = this.precomputed.doubles; + if (!doubles) + return false; + + return doubles.points.length >= Math.ceil((k.bitLength() + 1) / doubles.step); +}; + +BasePoint.prototype._getDoubles = function _getDoubles(step, power) { + if (this.precomputed && this.precomputed.doubles) + return this.precomputed.doubles; + + var doubles = [ this ]; + var acc = this; + for (var i = 0; i < power; i += step) { + for (var j = 0; j < step; j++) + acc = acc.dbl(); + doubles.push(acc); + } + return { + step: step, + points: doubles + }; +}; + +BasePoint.prototype._getNAFPoints = function _getNAFPoints(wnd) { + if (this.precomputed && this.precomputed.naf) + return this.precomputed.naf; + + var res = [ this ]; + var max = (1 << wnd) - 1; + var dbl = max === 1 ? null : this.dbl(); + for (var i = 1; i < max; i++) + res[i] = res[i - 1].add(dbl); + return { + wnd: wnd, + points: res + }; +}; + +BasePoint.prototype._getBeta = function _getBeta() { + return null; +}; + +BasePoint.prototype.dblp = function dblp(k) { + var r = this; + for (var i = 0; i < k; i++) + r = r.dbl(); + return r; +}; + +},{"../../elliptic":89,"bn.js":40}],91:[function(require,module,exports){ +'use strict'; + +var curve = require('../curve'); +var elliptic = require('../../elliptic'); +var BN = require('bn.js'); +var inherits = require('inherits'); +var Base = curve.base; + +var assert = elliptic.utils.assert; + +function EdwardsCurve(conf) { + // NOTE: Important as we are creating point in Base.call() + this.twisted = (conf.a | 0) !== 1; + this.mOneA = this.twisted && (conf.a | 0) === -1; + this.extended = this.mOneA; + + Base.call(this, 'edwards', conf); + + this.a = new BN(conf.a, 16).umod(this.red.m); + this.a = this.a.toRed(this.red); + this.c = new BN(conf.c, 16).toRed(this.red); + this.c2 = this.c.redSqr(); + this.d = new BN(conf.d, 16).toRed(this.red); + this.dd = this.d.redAdd(this.d); + + assert(!this.twisted || this.c.fromRed().cmpn(1) === 0); + this.oneC = (conf.c | 0) === 1; +} +inherits(EdwardsCurve, Base); +module.exports = EdwardsCurve; + +EdwardsCurve.prototype._mulA = function _mulA(num) { + if (this.mOneA) + return num.redNeg(); + else + return this.a.redMul(num); +}; + +EdwardsCurve.prototype._mulC = function _mulC(num) { + if (this.oneC) + return num; + else + return this.c.redMul(num); +}; + +// Just for compatibility with Short curve +EdwardsCurve.prototype.jpoint = function jpoint(x, y, z, t) { + return this.point(x, y, z, t); +}; + +EdwardsCurve.prototype.pointFromX = function pointFromX(x, odd) { + x = new BN(x, 16); + if (!x.red) + x = x.toRed(this.red); + + var x2 = x.redSqr(); + var rhs = this.c2.redSub(this.a.redMul(x2)); + var lhs = this.one.redSub(this.c2.redMul(this.d).redMul(x2)); + + var y2 = rhs.redMul(lhs.redInvm()); + var y = y2.redSqrt(); + if (y.redSqr().redSub(y2).cmp(this.zero) !== 0) + throw new Error('invalid point'); + + var isOdd = y.fromRed().isOdd(); + if (odd && !isOdd || !odd && isOdd) + y = y.redNeg(); + + return this.point(x, y); +}; + +EdwardsCurve.prototype.pointFromY = function pointFromY(y, odd) { + y = new BN(y, 16); + if (!y.red) + y = y.toRed(this.red); + + // x^2 = (y^2 - 1) / (d y^2 + 1) + var y2 = y.redSqr(); + var lhs = y2.redSub(this.one); + var rhs = y2.redMul(this.d).redAdd(this.one); + var x2 = lhs.redMul(rhs.redInvm()); + + if (x2.cmp(this.zero) === 0) { + if (odd) + throw new Error('invalid point'); + else + return this.point(this.zero, y); + } + + var x = x2.redSqrt(); + if (x.redSqr().redSub(x2).cmp(this.zero) !== 0) + throw new Error('invalid point'); + + if (x.isOdd() !== odd) + x = x.redNeg(); + + return this.point(x, y); +}; + +EdwardsCurve.prototype.validate = function validate(point) { + if (point.isInfinity()) + return true; + + // Curve: A * X^2 + Y^2 = C^2 * (1 + D * X^2 * Y^2) + point.normalize(); + + var x2 = point.x.redSqr(); + var y2 = point.y.redSqr(); + var lhs = x2.redMul(this.a).redAdd(y2); + var rhs = this.c2.redMul(this.one.redAdd(this.d.redMul(x2).redMul(y2))); + + return lhs.cmp(rhs) === 0; +}; + +function Point(curve, x, y, z, t) { + Base.BasePoint.call(this, curve, 'projective'); + if (x === null && y === null && z === null) { + this.x = this.curve.zero; + this.y = this.curve.one; + this.z = this.curve.one; + this.t = this.curve.zero; + this.zOne = true; + } else { + this.x = new BN(x, 16); + this.y = new BN(y, 16); + this.z = z ? new BN(z, 16) : this.curve.one; + this.t = t && new BN(t, 16); + if (!this.x.red) + this.x = this.x.toRed(this.curve.red); + if (!this.y.red) + this.y = this.y.toRed(this.curve.red); + if (!this.z.red) + this.z = this.z.toRed(this.curve.red); + if (this.t && !this.t.red) + this.t = this.t.toRed(this.curve.red); + this.zOne = this.z === this.curve.one; + + // Use extended coordinates + if (this.curve.extended && !this.t) { + this.t = this.x.redMul(this.y); + if (!this.zOne) + this.t = this.t.redMul(this.z.redInvm()); + } + } +} +inherits(Point, Base.BasePoint); + +EdwardsCurve.prototype.pointFromJSON = function pointFromJSON(obj) { + return Point.fromJSON(this, obj); +}; + +EdwardsCurve.prototype.point = function point(x, y, z, t) { + return new Point(this, x, y, z, t); +}; + +Point.fromJSON = function fromJSON(curve, obj) { + return new Point(curve, obj[0], obj[1], obj[2]); +}; + +Point.prototype.inspect = function inspect() { + if (this.isInfinity()) + return ''; + return ''; +}; + +Point.prototype.isInfinity = function isInfinity() { + // XXX This code assumes that zero is always zero in red + return this.x.cmpn(0) === 0 && + this.y.cmp(this.z) === 0; +}; + +Point.prototype._extDbl = function _extDbl() { + // hyperelliptic.org/EFD/g1p/auto-twisted-extended-1.html + // #doubling-dbl-2008-hwcd + // 4M + 4S + + // A = X1^2 + var a = this.x.redSqr(); + // B = Y1^2 + var b = this.y.redSqr(); + // C = 2 * Z1^2 + var c = this.z.redSqr(); + c = c.redIAdd(c); + // D = a * A + var d = this.curve._mulA(a); + // E = (X1 + Y1)^2 - A - B + var e = this.x.redAdd(this.y).redSqr().redISub(a).redISub(b); + // G = D + B + var g = d.redAdd(b); + // F = G - C + var f = g.redSub(c); + // H = D - B + var h = d.redSub(b); + // X3 = E * F + var nx = e.redMul(f); + // Y3 = G * H + var ny = g.redMul(h); + // T3 = E * H + var nt = e.redMul(h); + // Z3 = F * G + var nz = f.redMul(g); + return this.curve.point(nx, ny, nz, nt); +}; + +Point.prototype._projDbl = function _projDbl() { + // hyperelliptic.org/EFD/g1p/auto-twisted-projective.html + // #doubling-dbl-2008-bbjlp + // #doubling-dbl-2007-bl + // and others + // Generally 3M + 4S or 2M + 4S + + // B = (X1 + Y1)^2 + var b = this.x.redAdd(this.y).redSqr(); + // C = X1^2 + var c = this.x.redSqr(); + // D = Y1^2 + var d = this.y.redSqr(); + + var nx; + var ny; + var nz; + if (this.curve.twisted) { + // E = a * C + var e = this.curve._mulA(c); + // F = E + D + var f = e.redAdd(d); + if (this.zOne) { + // X3 = (B - C - D) * (F - 2) + nx = b.redSub(c).redSub(d).redMul(f.redSub(this.curve.two)); + // Y3 = F * (E - D) + ny = f.redMul(e.redSub(d)); + // Z3 = F^2 - 2 * F + nz = f.redSqr().redSub(f).redSub(f); + } else { + // H = Z1^2 + var h = this.z.redSqr(); + // J = F - 2 * H + var j = f.redSub(h).redISub(h); + // X3 = (B-C-D)*J + nx = b.redSub(c).redISub(d).redMul(j); + // Y3 = F * (E - D) + ny = f.redMul(e.redSub(d)); + // Z3 = F * J + nz = f.redMul(j); + } + } else { + // E = C + D + var e = c.redAdd(d); + // H = (c * Z1)^2 + var h = this.curve._mulC(this.c.redMul(this.z)).redSqr(); + // J = E - 2 * H + var j = e.redSub(h).redSub(h); + // X3 = c * (B - E) * J + nx = this.curve._mulC(b.redISub(e)).redMul(j); + // Y3 = c * E * (C - D) + ny = this.curve._mulC(e).redMul(c.redISub(d)); + // Z3 = E * J + nz = e.redMul(j); + } + return this.curve.point(nx, ny, nz); +}; + +Point.prototype.dbl = function dbl() { + if (this.isInfinity()) + return this; + + // Double in extended coordinates + if (this.curve.extended) + return this._extDbl(); + else + return this._projDbl(); +}; + +Point.prototype._extAdd = function _extAdd(p) { + // hyperelliptic.org/EFD/g1p/auto-twisted-extended-1.html + // #addition-add-2008-hwcd-3 + // 8M + + // A = (Y1 - X1) * (Y2 - X2) + var a = this.y.redSub(this.x).redMul(p.y.redSub(p.x)); + // B = (Y1 + X1) * (Y2 + X2) + var b = this.y.redAdd(this.x).redMul(p.y.redAdd(p.x)); + // C = T1 * k * T2 + var c = this.t.redMul(this.curve.dd).redMul(p.t); + // D = Z1 * 2 * Z2 + var d = this.z.redMul(p.z.redAdd(p.z)); + // E = B - A + var e = b.redSub(a); + // F = D - C + var f = d.redSub(c); + // G = D + C + var g = d.redAdd(c); + // H = B + A + var h = b.redAdd(a); + // X3 = E * F + var nx = e.redMul(f); + // Y3 = G * H + var ny = g.redMul(h); + // T3 = E * H + var nt = e.redMul(h); + // Z3 = F * G + var nz = f.redMul(g); + return this.curve.point(nx, ny, nz, nt); +}; + +Point.prototype._projAdd = function _projAdd(p) { + // hyperelliptic.org/EFD/g1p/auto-twisted-projective.html + // #addition-add-2008-bbjlp + // #addition-add-2007-bl + // 10M + 1S + + // A = Z1 * Z2 + var a = this.z.redMul(p.z); + // B = A^2 + var b = a.redSqr(); + // C = X1 * X2 + var c = this.x.redMul(p.x); + // D = Y1 * Y2 + var d = this.y.redMul(p.y); + // E = d * C * D + var e = this.curve.d.redMul(c).redMul(d); + // F = B - E + var f = b.redSub(e); + // G = B + E + var g = b.redAdd(e); + // X3 = A * F * ((X1 + Y1) * (X2 + Y2) - C - D) + var tmp = this.x.redAdd(this.y).redMul(p.x.redAdd(p.y)).redISub(c).redISub(d); + var nx = a.redMul(f).redMul(tmp); + var ny; + var nz; + if (this.curve.twisted) { + // Y3 = A * G * (D - a * C) + ny = a.redMul(g).redMul(d.redSub(this.curve._mulA(c))); + // Z3 = F * G + nz = f.redMul(g); + } else { + // Y3 = A * G * (D - C) + ny = a.redMul(g).redMul(d.redSub(c)); + // Z3 = c * F * G + nz = this.curve._mulC(f).redMul(g); + } + return this.curve.point(nx, ny, nz); +}; + +Point.prototype.add = function add(p) { + if (this.isInfinity()) + return p; + if (p.isInfinity()) + return this; + + if (this.curve.extended) + return this._extAdd(p); + else + return this._projAdd(p); +}; + +Point.prototype.mul = function mul(k) { + if (this._hasDoubles(k)) + return this.curve._fixedNafMul(this, k); + else + return this.curve._wnafMul(this, k); +}; + +Point.prototype.mulAdd = function mulAdd(k1, p, k2) { + return this.curve._wnafMulAdd(1, [ this, p ], [ k1, k2 ], 2, false); +}; + +Point.prototype.jmulAdd = function jmulAdd(k1, p, k2) { + return this.curve._wnafMulAdd(1, [ this, p ], [ k1, k2 ], 2, true); +}; + +Point.prototype.normalize = function normalize() { + if (this.zOne) + return this; + + // Normalize coordinates + var zi = this.z.redInvm(); + this.x = this.x.redMul(zi); + this.y = this.y.redMul(zi); + if (this.t) + this.t = this.t.redMul(zi); + this.z = this.curve.one; + this.zOne = true; + return this; +}; + +Point.prototype.neg = function neg() { + return this.curve.point(this.x.redNeg(), + this.y, + this.z, + this.t && this.t.redNeg()); +}; + +Point.prototype.getX = function getX() { + this.normalize(); + return this.x.fromRed(); +}; + +Point.prototype.getY = function getY() { + this.normalize(); + return this.y.fromRed(); +}; + +Point.prototype.eq = function eq(other) { + return this === other || + this.getX().cmp(other.getX()) === 0 && + this.getY().cmp(other.getY()) === 0; +}; + +Point.prototype.eqXToP = function eqXToP(x) { + var rx = x.toRed(this.curve.red).redMul(this.z); + if (this.x.cmp(rx) === 0) + return true; + + var xc = x.clone(); + var t = this.curve.redN.redMul(this.z); + for (;;) { + xc.iadd(this.curve.n); + if (xc.cmp(this.curve.p) >= 0) + return false; + + rx.redIAdd(t); + if (this.x.cmp(rx) === 0) + return true; + } + return false; +}; + +// Compatibility with BaseCurve +Point.prototype.toP = Point.prototype.normalize; +Point.prototype.mixedAdd = Point.prototype.add; + +},{"../../elliptic":89,"../curve":92,"bn.js":40,"inherits":123}],92:[function(require,module,exports){ +'use strict'; + +var curve = exports; + +curve.base = require('./base'); +curve.short = require('./short'); +curve.mont = require('./mont'); +curve.edwards = require('./edwards'); + +},{"./base":90,"./edwards":91,"./mont":93,"./short":94}],93:[function(require,module,exports){ +'use strict'; + +var curve = require('../curve'); +var BN = require('bn.js'); +var inherits = require('inherits'); +var Base = curve.base; + +var elliptic = require('../../elliptic'); +var utils = elliptic.utils; + +function MontCurve(conf) { + Base.call(this, 'mont', conf); + + this.a = new BN(conf.a, 16).toRed(this.red); + this.b = new BN(conf.b, 16).toRed(this.red); + this.i4 = new BN(4).toRed(this.red).redInvm(); + this.two = new BN(2).toRed(this.red); + this.a24 = this.i4.redMul(this.a.redAdd(this.two)); +} +inherits(MontCurve, Base); +module.exports = MontCurve; + +MontCurve.prototype.validate = function validate(point) { + var x = point.normalize().x; + var x2 = x.redSqr(); + var rhs = x2.redMul(x).redAdd(x2.redMul(this.a)).redAdd(x); + var y = rhs.redSqrt(); + + return y.redSqr().cmp(rhs) === 0; +}; + +function Point(curve, x, z) { + Base.BasePoint.call(this, curve, 'projective'); + if (x === null && z === null) { + this.x = this.curve.one; + this.z = this.curve.zero; + } else { + this.x = new BN(x, 16); + this.z = new BN(z, 16); + if (!this.x.red) + this.x = this.x.toRed(this.curve.red); + if (!this.z.red) + this.z = this.z.toRed(this.curve.red); + } +} +inherits(Point, Base.BasePoint); + +MontCurve.prototype.decodePoint = function decodePoint(bytes, enc) { + return this.point(utils.toArray(bytes, enc), 1); +}; + +MontCurve.prototype.point = function point(x, z) { + return new Point(this, x, z); +}; + +MontCurve.prototype.pointFromJSON = function pointFromJSON(obj) { + return Point.fromJSON(this, obj); +}; + +Point.prototype.precompute = function precompute() { + // No-op +}; + +Point.prototype._encode = function _encode() { + return this.getX().toArray('be', this.curve.p.byteLength()); +}; + +Point.fromJSON = function fromJSON(curve, obj) { + return new Point(curve, obj[0], obj[1] || curve.one); +}; + +Point.prototype.inspect = function inspect() { + if (this.isInfinity()) + return ''; + return ''; +}; + +Point.prototype.isInfinity = function isInfinity() { + // XXX This code assumes that zero is always zero in red + return this.z.cmpn(0) === 0; +}; + +Point.prototype.dbl = function dbl() { + // http://hyperelliptic.org/EFD/g1p/auto-montgom-xz.html#doubling-dbl-1987-m-3 + // 2M + 2S + 4A + + // A = X1 + Z1 + var a = this.x.redAdd(this.z); + // AA = A^2 + var aa = a.redSqr(); + // B = X1 - Z1 + var b = this.x.redSub(this.z); + // BB = B^2 + var bb = b.redSqr(); + // C = AA - BB + var c = aa.redSub(bb); + // X3 = AA * BB + var nx = aa.redMul(bb); + // Z3 = C * (BB + A24 * C) + var nz = c.redMul(bb.redAdd(this.curve.a24.redMul(c))); + return this.curve.point(nx, nz); +}; + +Point.prototype.add = function add() { + throw new Error('Not supported on Montgomery curve'); +}; + +Point.prototype.diffAdd = function diffAdd(p, diff) { + // http://hyperelliptic.org/EFD/g1p/auto-montgom-xz.html#diffadd-dadd-1987-m-3 + // 4M + 2S + 6A + + // A = X2 + Z2 + var a = this.x.redAdd(this.z); + // B = X2 - Z2 + var b = this.x.redSub(this.z); + // C = X3 + Z3 + var c = p.x.redAdd(p.z); + // D = X3 - Z3 + var d = p.x.redSub(p.z); + // DA = D * A + var da = d.redMul(a); + // CB = C * B + var cb = c.redMul(b); + // X5 = Z1 * (DA + CB)^2 + var nx = diff.z.redMul(da.redAdd(cb).redSqr()); + // Z5 = X1 * (DA - CB)^2 + var nz = diff.x.redMul(da.redISub(cb).redSqr()); + return this.curve.point(nx, nz); +}; + +Point.prototype.mul = function mul(k) { + var t = k.clone(); + var a = this; // (N / 2) * Q + Q + var b = this.curve.point(null, null); // (N / 2) * Q + var c = this; // Q + + for (var bits = []; t.cmpn(0) !== 0; t.iushrn(1)) + bits.push(t.andln(1)); + + for (var i = bits.length - 1; i >= 0; i--) { + if (bits[i] === 0) { + // N * Q + Q = ((N / 2) * Q + Q)) + (N / 2) * Q + a = a.diffAdd(b, c); + // N * Q = 2 * ((N / 2) * Q + Q)) + b = b.dbl(); + } else { + // N * Q = ((N / 2) * Q + Q) + ((N / 2) * Q) + b = a.diffAdd(b, c); + // N * Q + Q = 2 * ((N / 2) * Q + Q) + a = a.dbl(); + } + } + return b; +}; + +Point.prototype.mulAdd = function mulAdd() { + throw new Error('Not supported on Montgomery curve'); +}; + +Point.prototype.jumlAdd = function jumlAdd() { + throw new Error('Not supported on Montgomery curve'); +}; + +Point.prototype.eq = function eq(other) { + return this.getX().cmp(other.getX()) === 0; +}; + +Point.prototype.normalize = function normalize() { + this.x = this.x.redMul(this.z.redInvm()); + this.z = this.curve.one; + return this; +}; + +Point.prototype.getX = function getX() { + // Normalize coordinates + this.normalize(); + + return this.x.fromRed(); +}; + +},{"../../elliptic":89,"../curve":92,"bn.js":40,"inherits":123}],94:[function(require,module,exports){ +'use strict'; + +var curve = require('../curve'); +var elliptic = require('../../elliptic'); +var BN = require('bn.js'); +var inherits = require('inherits'); +var Base = curve.base; + +var assert = elliptic.utils.assert; + +function ShortCurve(conf) { + Base.call(this, 'short', conf); + + this.a = new BN(conf.a, 16).toRed(this.red); + this.b = new BN(conf.b, 16).toRed(this.red); + this.tinv = this.two.redInvm(); + + this.zeroA = this.a.fromRed().cmpn(0) === 0; + this.threeA = this.a.fromRed().sub(this.p).cmpn(-3) === 0; + + // If the curve is endomorphic, precalculate beta and lambda + this.endo = this._getEndomorphism(conf); + this._endoWnafT1 = new Array(4); + this._endoWnafT2 = new Array(4); +} +inherits(ShortCurve, Base); +module.exports = ShortCurve; + +ShortCurve.prototype._getEndomorphism = function _getEndomorphism(conf) { + // No efficient endomorphism + if (!this.zeroA || !this.g || !this.n || this.p.modn(3) !== 1) + return; + + // Compute beta and lambda, that lambda * P = (beta * Px; Py) + var beta; + var lambda; + if (conf.beta) { + beta = new BN(conf.beta, 16).toRed(this.red); + } else { + var betas = this._getEndoRoots(this.p); + // Choose the smallest beta + beta = betas[0].cmp(betas[1]) < 0 ? betas[0] : betas[1]; + beta = beta.toRed(this.red); + } + if (conf.lambda) { + lambda = new BN(conf.lambda, 16); + } else { + // Choose the lambda that is matching selected beta + var lambdas = this._getEndoRoots(this.n); + if (this.g.mul(lambdas[0]).x.cmp(this.g.x.redMul(beta)) === 0) { + lambda = lambdas[0]; + } else { + lambda = lambdas[1]; + assert(this.g.mul(lambda).x.cmp(this.g.x.redMul(beta)) === 0); + } + } + + // Get basis vectors, used for balanced length-two representation + var basis; + if (conf.basis) { + basis = conf.basis.map(function(vec) { + return { + a: new BN(vec.a, 16), + b: new BN(vec.b, 16) + }; + }); + } else { + basis = this._getEndoBasis(lambda); + } + + return { + beta: beta, + lambda: lambda, + basis: basis + }; +}; + +ShortCurve.prototype._getEndoRoots = function _getEndoRoots(num) { + // Find roots of for x^2 + x + 1 in F + // Root = (-1 +- Sqrt(-3)) / 2 + // + var red = num === this.p ? this.red : BN.mont(num); + var tinv = new BN(2).toRed(red).redInvm(); + var ntinv = tinv.redNeg(); + + var s = new BN(3).toRed(red).redNeg().redSqrt().redMul(tinv); + + var l1 = ntinv.redAdd(s).fromRed(); + var l2 = ntinv.redSub(s).fromRed(); + return [ l1, l2 ]; +}; + +ShortCurve.prototype._getEndoBasis = function _getEndoBasis(lambda) { + // aprxSqrt >= sqrt(this.n) + var aprxSqrt = this.n.ushrn(Math.floor(this.n.bitLength() / 2)); + + // 3.74 + // Run EGCD, until r(L + 1) < aprxSqrt + var u = lambda; + var v = this.n.clone(); + var x1 = new BN(1); + var y1 = new BN(0); + var x2 = new BN(0); + var y2 = new BN(1); + + // NOTE: all vectors are roots of: a + b * lambda = 0 (mod n) + var a0; + var b0; + // First vector + var a1; + var b1; + // Second vector + var a2; + var b2; + + var prevR; + var i = 0; + var r; + var x; + while (u.cmpn(0) !== 0) { + var q = v.div(u); + r = v.sub(q.mul(u)); + x = x2.sub(q.mul(x1)); + var y = y2.sub(q.mul(y1)); + + if (!a1 && r.cmp(aprxSqrt) < 0) { + a0 = prevR.neg(); + b0 = x1; + a1 = r.neg(); + b1 = x; + } else if (a1 && ++i === 2) { + break; + } + prevR = r; + + v = u; + u = r; + x2 = x1; + x1 = x; + y2 = y1; + y1 = y; + } + a2 = r.neg(); + b2 = x; + + var len1 = a1.sqr().add(b1.sqr()); + var len2 = a2.sqr().add(b2.sqr()); + if (len2.cmp(len1) >= 0) { + a2 = a0; + b2 = b0; + } + + // Normalize signs + if (a1.negative) { + a1 = a1.neg(); + b1 = b1.neg(); + } + if (a2.negative) { + a2 = a2.neg(); + b2 = b2.neg(); + } + + return [ + { a: a1, b: b1 }, + { a: a2, b: b2 } + ]; +}; + +ShortCurve.prototype._endoSplit = function _endoSplit(k) { + var basis = this.endo.basis; + var v1 = basis[0]; + var v2 = basis[1]; + + var c1 = v2.b.mul(k).divRound(this.n); + var c2 = v1.b.neg().mul(k).divRound(this.n); + + var p1 = c1.mul(v1.a); + var p2 = c2.mul(v2.a); + var q1 = c1.mul(v1.b); + var q2 = c2.mul(v2.b); + + // Calculate answer + var k1 = k.sub(p1).sub(p2); + var k2 = q1.add(q2).neg(); + return { k1: k1, k2: k2 }; +}; + +ShortCurve.prototype.pointFromX = function pointFromX(x, odd) { + x = new BN(x, 16); + if (!x.red) + x = x.toRed(this.red); + + var y2 = x.redSqr().redMul(x).redIAdd(x.redMul(this.a)).redIAdd(this.b); + var y = y2.redSqrt(); + if (y.redSqr().redSub(y2).cmp(this.zero) !== 0) + throw new Error('invalid point'); + + // XXX Is there any way to tell if the number is odd without converting it + // to non-red form? + var isOdd = y.fromRed().isOdd(); + if (odd && !isOdd || !odd && isOdd) + y = y.redNeg(); + + return this.point(x, y); +}; + +ShortCurve.prototype.validate = function validate(point) { + if (point.inf) + return true; + + var x = point.x; + var y = point.y; + + var ax = this.a.redMul(x); + var rhs = x.redSqr().redMul(x).redIAdd(ax).redIAdd(this.b); + return y.redSqr().redISub(rhs).cmpn(0) === 0; +}; + +ShortCurve.prototype._endoWnafMulAdd = + function _endoWnafMulAdd(points, coeffs, jacobianResult) { + var npoints = this._endoWnafT1; + var ncoeffs = this._endoWnafT2; + for (var i = 0; i < points.length; i++) { + var split = this._endoSplit(coeffs[i]); + var p = points[i]; + var beta = p._getBeta(); + + if (split.k1.negative) { + split.k1.ineg(); + p = p.neg(true); + } + if (split.k2.negative) { + split.k2.ineg(); + beta = beta.neg(true); + } + + npoints[i * 2] = p; + npoints[i * 2 + 1] = beta; + ncoeffs[i * 2] = split.k1; + ncoeffs[i * 2 + 1] = split.k2; + } + var res = this._wnafMulAdd(1, npoints, ncoeffs, i * 2, jacobianResult); + + // Clean-up references to points and coefficients + for (var j = 0; j < i * 2; j++) { + npoints[j] = null; + ncoeffs[j] = null; + } + return res; +}; + +function Point(curve, x, y, isRed) { + Base.BasePoint.call(this, curve, 'affine'); + if (x === null && y === null) { + this.x = null; + this.y = null; + this.inf = true; + } else { + this.x = new BN(x, 16); + this.y = new BN(y, 16); + // Force redgomery representation when loading from JSON + if (isRed) { + this.x.forceRed(this.curve.red); + this.y.forceRed(this.curve.red); + } + if (!this.x.red) + this.x = this.x.toRed(this.curve.red); + if (!this.y.red) + this.y = this.y.toRed(this.curve.red); + this.inf = false; + } +} +inherits(Point, Base.BasePoint); + +ShortCurve.prototype.point = function point(x, y, isRed) { + return new Point(this, x, y, isRed); +}; + +ShortCurve.prototype.pointFromJSON = function pointFromJSON(obj, red) { + return Point.fromJSON(this, obj, red); +}; + +Point.prototype._getBeta = function _getBeta() { + if (!this.curve.endo) + return; + + var pre = this.precomputed; + if (pre && pre.beta) + return pre.beta; + + var beta = this.curve.point(this.x.redMul(this.curve.endo.beta), this.y); + if (pre) { + var curve = this.curve; + var endoMul = function(p) { + return curve.point(p.x.redMul(curve.endo.beta), p.y); + }; + pre.beta = beta; + beta.precomputed = { + beta: null, + naf: pre.naf && { + wnd: pre.naf.wnd, + points: pre.naf.points.map(endoMul) + }, + doubles: pre.doubles && { + step: pre.doubles.step, + points: pre.doubles.points.map(endoMul) + } + }; + } + return beta; +}; + +Point.prototype.toJSON = function toJSON() { + if (!this.precomputed) + return [ this.x, this.y ]; + + return [ this.x, this.y, this.precomputed && { + doubles: this.precomputed.doubles && { + step: this.precomputed.doubles.step, + points: this.precomputed.doubles.points.slice(1) + }, + naf: this.precomputed.naf && { + wnd: this.precomputed.naf.wnd, + points: this.precomputed.naf.points.slice(1) + } + } ]; +}; + +Point.fromJSON = function fromJSON(curve, obj, red) { + if (typeof obj === 'string') + obj = JSON.parse(obj); + var res = curve.point(obj[0], obj[1], red); + if (!obj[2]) + return res; + + function obj2point(obj) { + return curve.point(obj[0], obj[1], red); + } + + var pre = obj[2]; + res.precomputed = { + beta: null, + doubles: pre.doubles && { + step: pre.doubles.step, + points: [ res ].concat(pre.doubles.points.map(obj2point)) + }, + naf: pre.naf && { + wnd: pre.naf.wnd, + points: [ res ].concat(pre.naf.points.map(obj2point)) + } + }; + return res; +}; + +Point.prototype.inspect = function inspect() { + if (this.isInfinity()) + return ''; + return ''; +}; + +Point.prototype.isInfinity = function isInfinity() { + return this.inf; +}; + +Point.prototype.add = function add(p) { + // O + P = P + if (this.inf) + return p; + + // P + O = P + if (p.inf) + return this; + + // P + P = 2P + if (this.eq(p)) + return this.dbl(); + + // P + (-P) = O + if (this.neg().eq(p)) + return this.curve.point(null, null); + + // P + Q = O + if (this.x.cmp(p.x) === 0) + return this.curve.point(null, null); + + var c = this.y.redSub(p.y); + if (c.cmpn(0) !== 0) + c = c.redMul(this.x.redSub(p.x).redInvm()); + var nx = c.redSqr().redISub(this.x).redISub(p.x); + var ny = c.redMul(this.x.redSub(nx)).redISub(this.y); + return this.curve.point(nx, ny); +}; + +Point.prototype.dbl = function dbl() { + if (this.inf) + return this; + + // 2P = O + var ys1 = this.y.redAdd(this.y); + if (ys1.cmpn(0) === 0) + return this.curve.point(null, null); + + var a = this.curve.a; + + var x2 = this.x.redSqr(); + var dyinv = ys1.redInvm(); + var c = x2.redAdd(x2).redIAdd(x2).redIAdd(a).redMul(dyinv); + + var nx = c.redSqr().redISub(this.x.redAdd(this.x)); + var ny = c.redMul(this.x.redSub(nx)).redISub(this.y); + return this.curve.point(nx, ny); +}; + +Point.prototype.getX = function getX() { + return this.x.fromRed(); +}; + +Point.prototype.getY = function getY() { + return this.y.fromRed(); +}; + +Point.prototype.mul = function mul(k) { + k = new BN(k, 16); + + if (this._hasDoubles(k)) + return this.curve._fixedNafMul(this, k); + else if (this.curve.endo) + return this.curve._endoWnafMulAdd([ this ], [ k ]); + else + return this.curve._wnafMul(this, k); +}; + +Point.prototype.mulAdd = function mulAdd(k1, p2, k2) { + var points = [ this, p2 ]; + var coeffs = [ k1, k2 ]; + if (this.curve.endo) + return this.curve._endoWnafMulAdd(points, coeffs); + else + return this.curve._wnafMulAdd(1, points, coeffs, 2); +}; + +Point.prototype.jmulAdd = function jmulAdd(k1, p2, k2) { + var points = [ this, p2 ]; + var coeffs = [ k1, k2 ]; + if (this.curve.endo) + return this.curve._endoWnafMulAdd(points, coeffs, true); + else + return this.curve._wnafMulAdd(1, points, coeffs, 2, true); +}; + +Point.prototype.eq = function eq(p) { + return this === p || + this.inf === p.inf && + (this.inf || this.x.cmp(p.x) === 0 && this.y.cmp(p.y) === 0); +}; + +Point.prototype.neg = function neg(_precompute) { + if (this.inf) + return this; + + var res = this.curve.point(this.x, this.y.redNeg()); + if (_precompute && this.precomputed) { + var pre = this.precomputed; + var negate = function(p) { + return p.neg(); + }; + res.precomputed = { + naf: pre.naf && { + wnd: pre.naf.wnd, + points: pre.naf.points.map(negate) + }, + doubles: pre.doubles && { + step: pre.doubles.step, + points: pre.doubles.points.map(negate) + } + }; + } + return res; +}; + +Point.prototype.toJ = function toJ() { + if (this.inf) + return this.curve.jpoint(null, null, null); + + var res = this.curve.jpoint(this.x, this.y, this.curve.one); + return res; +}; + +function JPoint(curve, x, y, z) { + Base.BasePoint.call(this, curve, 'jacobian'); + if (x === null && y === null && z === null) { + this.x = this.curve.one; + this.y = this.curve.one; + this.z = new BN(0); + } else { + this.x = new BN(x, 16); + this.y = new BN(y, 16); + this.z = new BN(z, 16); + } + if (!this.x.red) + this.x = this.x.toRed(this.curve.red); + if (!this.y.red) + this.y = this.y.toRed(this.curve.red); + if (!this.z.red) + this.z = this.z.toRed(this.curve.red); + + this.zOne = this.z === this.curve.one; +} +inherits(JPoint, Base.BasePoint); + +ShortCurve.prototype.jpoint = function jpoint(x, y, z) { + return new JPoint(this, x, y, z); +}; + +JPoint.prototype.toP = function toP() { + if (this.isInfinity()) + return this.curve.point(null, null); + + var zinv = this.z.redInvm(); + var zinv2 = zinv.redSqr(); + var ax = this.x.redMul(zinv2); + var ay = this.y.redMul(zinv2).redMul(zinv); + + return this.curve.point(ax, ay); +}; + +JPoint.prototype.neg = function neg() { + return this.curve.jpoint(this.x, this.y.redNeg(), this.z); +}; + +JPoint.prototype.add = function add(p) { + // O + P = P + if (this.isInfinity()) + return p; + + // P + O = P + if (p.isInfinity()) + return this; + + // 12M + 4S + 7A + var pz2 = p.z.redSqr(); + var z2 = this.z.redSqr(); + var u1 = this.x.redMul(pz2); + var u2 = p.x.redMul(z2); + var s1 = this.y.redMul(pz2.redMul(p.z)); + var s2 = p.y.redMul(z2.redMul(this.z)); + + var h = u1.redSub(u2); + var r = s1.redSub(s2); + if (h.cmpn(0) === 0) { + if (r.cmpn(0) !== 0) + return this.curve.jpoint(null, null, null); + else + return this.dbl(); + } + + var h2 = h.redSqr(); + var h3 = h2.redMul(h); + var v = u1.redMul(h2); + + var nx = r.redSqr().redIAdd(h3).redISub(v).redISub(v); + var ny = r.redMul(v.redISub(nx)).redISub(s1.redMul(h3)); + var nz = this.z.redMul(p.z).redMul(h); + + return this.curve.jpoint(nx, ny, nz); +}; + +JPoint.prototype.mixedAdd = function mixedAdd(p) { + // O + P = P + if (this.isInfinity()) + return p.toJ(); + + // P + O = P + if (p.isInfinity()) + return this; + + // 8M + 3S + 7A + var z2 = this.z.redSqr(); + var u1 = this.x; + var u2 = p.x.redMul(z2); + var s1 = this.y; + var s2 = p.y.redMul(z2).redMul(this.z); + + var h = u1.redSub(u2); + var r = s1.redSub(s2); + if (h.cmpn(0) === 0) { + if (r.cmpn(0) !== 0) + return this.curve.jpoint(null, null, null); + else + return this.dbl(); + } + + var h2 = h.redSqr(); + var h3 = h2.redMul(h); + var v = u1.redMul(h2); + + var nx = r.redSqr().redIAdd(h3).redISub(v).redISub(v); + var ny = r.redMul(v.redISub(nx)).redISub(s1.redMul(h3)); + var nz = this.z.redMul(h); + + return this.curve.jpoint(nx, ny, nz); +}; + +JPoint.prototype.dblp = function dblp(pow) { + if (pow === 0) + return this; + if (this.isInfinity()) + return this; + if (!pow) + return this.dbl(); + + if (this.curve.zeroA || this.curve.threeA) { + var r = this; + for (var i = 0; i < pow; i++) + r = r.dbl(); + return r; + } + + // 1M + 2S + 1A + N * (4S + 5M + 8A) + // N = 1 => 6M + 6S + 9A + var a = this.curve.a; + var tinv = this.curve.tinv; + + var jx = this.x; + var jy = this.y; + var jz = this.z; + var jz4 = jz.redSqr().redSqr(); + + // Reuse results + var jyd = jy.redAdd(jy); + for (var i = 0; i < pow; i++) { + var jx2 = jx.redSqr(); + var jyd2 = jyd.redSqr(); + var jyd4 = jyd2.redSqr(); + var c = jx2.redAdd(jx2).redIAdd(jx2).redIAdd(a.redMul(jz4)); + + var t1 = jx.redMul(jyd2); + var nx = c.redSqr().redISub(t1.redAdd(t1)); + var t2 = t1.redISub(nx); + var dny = c.redMul(t2); + dny = dny.redIAdd(dny).redISub(jyd4); + var nz = jyd.redMul(jz); + if (i + 1 < pow) + jz4 = jz4.redMul(jyd4); + + jx = nx; + jz = nz; + jyd = dny; + } + + return this.curve.jpoint(jx, jyd.redMul(tinv), jz); +}; + +JPoint.prototype.dbl = function dbl() { + if (this.isInfinity()) + return this; + + if (this.curve.zeroA) + return this._zeroDbl(); + else if (this.curve.threeA) + return this._threeDbl(); + else + return this._dbl(); +}; + +JPoint.prototype._zeroDbl = function _zeroDbl() { + var nx; + var ny; + var nz; + // Z = 1 + if (this.zOne) { + // hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-0.html + // #doubling-mdbl-2007-bl + // 1M + 5S + 14A + + // XX = X1^2 + var xx = this.x.redSqr(); + // YY = Y1^2 + var yy = this.y.redSqr(); + // YYYY = YY^2 + var yyyy = yy.redSqr(); + // S = 2 * ((X1 + YY)^2 - XX - YYYY) + var s = this.x.redAdd(yy).redSqr().redISub(xx).redISub(yyyy); + s = s.redIAdd(s); + // M = 3 * XX + a; a = 0 + var m = xx.redAdd(xx).redIAdd(xx); + // T = M ^ 2 - 2*S + var t = m.redSqr().redISub(s).redISub(s); + + // 8 * YYYY + var yyyy8 = yyyy.redIAdd(yyyy); + yyyy8 = yyyy8.redIAdd(yyyy8); + yyyy8 = yyyy8.redIAdd(yyyy8); + + // X3 = T + nx = t; + // Y3 = M * (S - T) - 8 * YYYY + ny = m.redMul(s.redISub(t)).redISub(yyyy8); + // Z3 = 2*Y1 + nz = this.y.redAdd(this.y); + } else { + // hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-0.html + // #doubling-dbl-2009-l + // 2M + 5S + 13A + + // A = X1^2 + var a = this.x.redSqr(); + // B = Y1^2 + var b = this.y.redSqr(); + // C = B^2 + var c = b.redSqr(); + // D = 2 * ((X1 + B)^2 - A - C) + var d = this.x.redAdd(b).redSqr().redISub(a).redISub(c); + d = d.redIAdd(d); + // E = 3 * A + var e = a.redAdd(a).redIAdd(a); + // F = E^2 + var f = e.redSqr(); + + // 8 * C + var c8 = c.redIAdd(c); + c8 = c8.redIAdd(c8); + c8 = c8.redIAdd(c8); + + // X3 = F - 2 * D + nx = f.redISub(d).redISub(d); + // Y3 = E * (D - X3) - 8 * C + ny = e.redMul(d.redISub(nx)).redISub(c8); + // Z3 = 2 * Y1 * Z1 + nz = this.y.redMul(this.z); + nz = nz.redIAdd(nz); + } + + return this.curve.jpoint(nx, ny, nz); +}; + +JPoint.prototype._threeDbl = function _threeDbl() { + var nx; + var ny; + var nz; + // Z = 1 + if (this.zOne) { + // hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-3.html + // #doubling-mdbl-2007-bl + // 1M + 5S + 15A + + // XX = X1^2 + var xx = this.x.redSqr(); + // YY = Y1^2 + var yy = this.y.redSqr(); + // YYYY = YY^2 + var yyyy = yy.redSqr(); + // S = 2 * ((X1 + YY)^2 - XX - YYYY) + var s = this.x.redAdd(yy).redSqr().redISub(xx).redISub(yyyy); + s = s.redIAdd(s); + // M = 3 * XX + a + var m = xx.redAdd(xx).redIAdd(xx).redIAdd(this.curve.a); + // T = M^2 - 2 * S + var t = m.redSqr().redISub(s).redISub(s); + // X3 = T + nx = t; + // Y3 = M * (S - T) - 8 * YYYY + var yyyy8 = yyyy.redIAdd(yyyy); + yyyy8 = yyyy8.redIAdd(yyyy8); + yyyy8 = yyyy8.redIAdd(yyyy8); + ny = m.redMul(s.redISub(t)).redISub(yyyy8); + // Z3 = 2 * Y1 + nz = this.y.redAdd(this.y); + } else { + // hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-3.html#doubling-dbl-2001-b + // 3M + 5S + + // delta = Z1^2 + var delta = this.z.redSqr(); + // gamma = Y1^2 + var gamma = this.y.redSqr(); + // beta = X1 * gamma + var beta = this.x.redMul(gamma); + // alpha = 3 * (X1 - delta) * (X1 + delta) + var alpha = this.x.redSub(delta).redMul(this.x.redAdd(delta)); + alpha = alpha.redAdd(alpha).redIAdd(alpha); + // X3 = alpha^2 - 8 * beta + var beta4 = beta.redIAdd(beta); + beta4 = beta4.redIAdd(beta4); + var beta8 = beta4.redAdd(beta4); + nx = alpha.redSqr().redISub(beta8); + // Z3 = (Y1 + Z1)^2 - gamma - delta + nz = this.y.redAdd(this.z).redSqr().redISub(gamma).redISub(delta); + // Y3 = alpha * (4 * beta - X3) - 8 * gamma^2 + var ggamma8 = gamma.redSqr(); + ggamma8 = ggamma8.redIAdd(ggamma8); + ggamma8 = ggamma8.redIAdd(ggamma8); + ggamma8 = ggamma8.redIAdd(ggamma8); + ny = alpha.redMul(beta4.redISub(nx)).redISub(ggamma8); + } + + return this.curve.jpoint(nx, ny, nz); +}; + +JPoint.prototype._dbl = function _dbl() { + var a = this.curve.a; + + // 4M + 6S + 10A + var jx = this.x; + var jy = this.y; + var jz = this.z; + var jz4 = jz.redSqr().redSqr(); + + var jx2 = jx.redSqr(); + var jy2 = jy.redSqr(); + + var c = jx2.redAdd(jx2).redIAdd(jx2).redIAdd(a.redMul(jz4)); + + var jxd4 = jx.redAdd(jx); + jxd4 = jxd4.redIAdd(jxd4); + var t1 = jxd4.redMul(jy2); + var nx = c.redSqr().redISub(t1.redAdd(t1)); + var t2 = t1.redISub(nx); + + var jyd8 = jy2.redSqr(); + jyd8 = jyd8.redIAdd(jyd8); + jyd8 = jyd8.redIAdd(jyd8); + jyd8 = jyd8.redIAdd(jyd8); + var ny = c.redMul(t2).redISub(jyd8); + var nz = jy.redAdd(jy).redMul(jz); + + return this.curve.jpoint(nx, ny, nz); +}; + +JPoint.prototype.trpl = function trpl() { + if (!this.curve.zeroA) + return this.dbl().add(this); + + // hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-0.html#tripling-tpl-2007-bl + // 5M + 10S + ... + + // XX = X1^2 + var xx = this.x.redSqr(); + // YY = Y1^2 + var yy = this.y.redSqr(); + // ZZ = Z1^2 + var zz = this.z.redSqr(); + // YYYY = YY^2 + var yyyy = yy.redSqr(); + // M = 3 * XX + a * ZZ2; a = 0 + var m = xx.redAdd(xx).redIAdd(xx); + // MM = M^2 + var mm = m.redSqr(); + // E = 6 * ((X1 + YY)^2 - XX - YYYY) - MM + var e = this.x.redAdd(yy).redSqr().redISub(xx).redISub(yyyy); + e = e.redIAdd(e); + e = e.redAdd(e).redIAdd(e); + e = e.redISub(mm); + // EE = E^2 + var ee = e.redSqr(); + // T = 16*YYYY + var t = yyyy.redIAdd(yyyy); + t = t.redIAdd(t); + t = t.redIAdd(t); + t = t.redIAdd(t); + // U = (M + E)^2 - MM - EE - T + var u = m.redIAdd(e).redSqr().redISub(mm).redISub(ee).redISub(t); + // X3 = 4 * (X1 * EE - 4 * YY * U) + var yyu4 = yy.redMul(u); + yyu4 = yyu4.redIAdd(yyu4); + yyu4 = yyu4.redIAdd(yyu4); + var nx = this.x.redMul(ee).redISub(yyu4); + nx = nx.redIAdd(nx); + nx = nx.redIAdd(nx); + // Y3 = 8 * Y1 * (U * (T - U) - E * EE) + var ny = this.y.redMul(u.redMul(t.redISub(u)).redISub(e.redMul(ee))); + ny = ny.redIAdd(ny); + ny = ny.redIAdd(ny); + ny = ny.redIAdd(ny); + // Z3 = (Z1 + E)^2 - ZZ - EE + var nz = this.z.redAdd(e).redSqr().redISub(zz).redISub(ee); + + return this.curve.jpoint(nx, ny, nz); +}; + +JPoint.prototype.mul = function mul(k, kbase) { + k = new BN(k, kbase); + + return this.curve._wnafMul(this, k); +}; + +JPoint.prototype.eq = function eq(p) { + if (p.type === 'affine') + return this.eq(p.toJ()); + + if (this === p) + return true; + + // x1 * z2^2 == x2 * z1^2 + var z2 = this.z.redSqr(); + var pz2 = p.z.redSqr(); + if (this.x.redMul(pz2).redISub(p.x.redMul(z2)).cmpn(0) !== 0) + return false; + + // y1 * z2^3 == y2 * z1^3 + var z3 = z2.redMul(this.z); + var pz3 = pz2.redMul(p.z); + return this.y.redMul(pz3).redISub(p.y.redMul(z3)).cmpn(0) === 0; +}; + +JPoint.prototype.eqXToP = function eqXToP(x) { + var zs = this.z.redSqr(); + var rx = x.toRed(this.curve.red).redMul(zs); + if (this.x.cmp(rx) === 0) + return true; + + var xc = x.clone(); + var t = this.curve.redN.redMul(zs); + for (;;) { + xc.iadd(this.curve.n); + if (xc.cmp(this.curve.p) >= 0) + return false; + + rx.redIAdd(t); + if (this.x.cmp(rx) === 0) + return true; + } + return false; +}; + +JPoint.prototype.inspect = function inspect() { + if (this.isInfinity()) + return ''; + return ''; +}; + +JPoint.prototype.isInfinity = function isInfinity() { + // XXX This code assumes that zero is always zero in red + return this.z.cmpn(0) === 0; +}; + +},{"../../elliptic":89,"../curve":92,"bn.js":40,"inherits":123}],95:[function(require,module,exports){ +'use strict'; + +var curves = exports; + +var hash = require('hash.js'); +var elliptic = require('../elliptic'); + +var assert = elliptic.utils.assert; + +function PresetCurve(options) { + if (options.type === 'short') + this.curve = new elliptic.curve.short(options); + else if (options.type === 'edwards') + this.curve = new elliptic.curve.edwards(options); + else + this.curve = new elliptic.curve.mont(options); + this.g = this.curve.g; + this.n = this.curve.n; + this.hash = options.hash; + + assert(this.g.validate(), 'Invalid curve'); + assert(this.g.mul(this.n).isInfinity(), 'Invalid curve, G*N != O'); +} +curves.PresetCurve = PresetCurve; + +function defineCurve(name, options) { + Object.defineProperty(curves, name, { + configurable: true, + enumerable: true, + get: function() { + var curve = new PresetCurve(options); + Object.defineProperty(curves, name, { + configurable: true, + enumerable: true, + value: curve + }); + return curve; + } + }); +} + +defineCurve('p192', { + type: 'short', + prime: 'p192', + p: 'ffffffff ffffffff ffffffff fffffffe ffffffff ffffffff', + a: 'ffffffff ffffffff ffffffff fffffffe ffffffff fffffffc', + b: '64210519 e59c80e7 0fa7e9ab 72243049 feb8deec c146b9b1', + n: 'ffffffff ffffffff ffffffff 99def836 146bc9b1 b4d22831', + hash: hash.sha256, + gRed: false, + g: [ + '188da80e b03090f6 7cbf20eb 43a18800 f4ff0afd 82ff1012', + '07192b95 ffc8da78 631011ed 6b24cdd5 73f977a1 1e794811' + ] +}); + +defineCurve('p224', { + type: 'short', + prime: 'p224', + p: 'ffffffff ffffffff ffffffff ffffffff 00000000 00000000 00000001', + a: 'ffffffff ffffffff ffffffff fffffffe ffffffff ffffffff fffffffe', + b: 'b4050a85 0c04b3ab f5413256 5044b0b7 d7bfd8ba 270b3943 2355ffb4', + n: 'ffffffff ffffffff ffffffff ffff16a2 e0b8f03e 13dd2945 5c5c2a3d', + hash: hash.sha256, + gRed: false, + g: [ + 'b70e0cbd 6bb4bf7f 321390b9 4a03c1d3 56c21122 343280d6 115c1d21', + 'bd376388 b5f723fb 4c22dfe6 cd4375a0 5a074764 44d58199 85007e34' + ] +}); + +defineCurve('p256', { + type: 'short', + prime: null, + p: 'ffffffff 00000001 00000000 00000000 00000000 ffffffff ffffffff ffffffff', + a: 'ffffffff 00000001 00000000 00000000 00000000 ffffffff ffffffff fffffffc', + b: '5ac635d8 aa3a93e7 b3ebbd55 769886bc 651d06b0 cc53b0f6 3bce3c3e 27d2604b', + n: 'ffffffff 00000000 ffffffff ffffffff bce6faad a7179e84 f3b9cac2 fc632551', + hash: hash.sha256, + gRed: false, + g: [ + '6b17d1f2 e12c4247 f8bce6e5 63a440f2 77037d81 2deb33a0 f4a13945 d898c296', + '4fe342e2 fe1a7f9b 8ee7eb4a 7c0f9e16 2bce3357 6b315ece cbb64068 37bf51f5' + ] +}); + +defineCurve('p384', { + type: 'short', + prime: null, + p: 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ' + + 'fffffffe ffffffff 00000000 00000000 ffffffff', + a: 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ' + + 'fffffffe ffffffff 00000000 00000000 fffffffc', + b: 'b3312fa7 e23ee7e4 988e056b e3f82d19 181d9c6e fe814112 0314088f ' + + '5013875a c656398d 8a2ed19d 2a85c8ed d3ec2aef', + n: 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff c7634d81 ' + + 'f4372ddf 581a0db2 48b0a77a ecec196a ccc52973', + hash: hash.sha384, + gRed: false, + g: [ + 'aa87ca22 be8b0537 8eb1c71e f320ad74 6e1d3b62 8ba79b98 59f741e0 82542a38 ' + + '5502f25d bf55296c 3a545e38 72760ab7', + '3617de4a 96262c6f 5d9e98bf 9292dc29 f8f41dbd 289a147c e9da3113 b5f0b8c0 ' + + '0a60b1ce 1d7e819d 7a431d7c 90ea0e5f' + ] +}); + +defineCurve('p521', { + type: 'short', + prime: null, + p: '000001ff ffffffff ffffffff ffffffff ffffffff ffffffff ' + + 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ' + + 'ffffffff ffffffff ffffffff ffffffff ffffffff', + a: '000001ff ffffffff ffffffff ffffffff ffffffff ffffffff ' + + 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ' + + 'ffffffff ffffffff ffffffff ffffffff fffffffc', + b: '00000051 953eb961 8e1c9a1f 929a21a0 b68540ee a2da725b ' + + '99b315f3 b8b48991 8ef109e1 56193951 ec7e937b 1652c0bd ' + + '3bb1bf07 3573df88 3d2c34f1 ef451fd4 6b503f00', + n: '000001ff ffffffff ffffffff ffffffff ffffffff ffffffff ' + + 'ffffffff ffffffff fffffffa 51868783 bf2f966b 7fcc0148 ' + + 'f709a5d0 3bb5c9b8 899c47ae bb6fb71e 91386409', + hash: hash.sha512, + gRed: false, + g: [ + '000000c6 858e06b7 0404e9cd 9e3ecb66 2395b442 9c648139 ' + + '053fb521 f828af60 6b4d3dba a14b5e77 efe75928 fe1dc127 ' + + 'a2ffa8de 3348b3c1 856a429b f97e7e31 c2e5bd66', + '00000118 39296a78 9a3bc004 5c8a5fb4 2c7d1bd9 98f54449 ' + + '579b4468 17afbd17 273e662c 97ee7299 5ef42640 c550b901 ' + + '3fad0761 353c7086 a272c240 88be9476 9fd16650' + ] +}); + +defineCurve('curve25519', { + type: 'mont', + prime: 'p25519', + p: '7fffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffed', + a: '76d06', + b: '1', + n: '1000000000000000 0000000000000000 14def9dea2f79cd6 5812631a5cf5d3ed', + hash: hash.sha256, + gRed: false, + g: [ + '9' + ] +}); + +defineCurve('ed25519', { + type: 'edwards', + prime: 'p25519', + p: '7fffffffffffffff ffffffffffffffff ffffffffffffffff ffffffffffffffed', + a: '-1', + c: '1', + // -121665 * (121666^(-1)) (mod P) + d: '52036cee2b6ffe73 8cc740797779e898 00700a4d4141d8ab 75eb4dca135978a3', + n: '1000000000000000 0000000000000000 14def9dea2f79cd6 5812631a5cf5d3ed', + hash: hash.sha256, + gRed: false, + g: [ + '216936d3cd6e53fec0a4e231fdd6dc5c692cc7609525a7b2c9562d608f25d51a', + + // 4/5 + '6666666666666666666666666666666666666666666666666666666666666658' + ] +}); + +var pre; +try { + pre = require('./precomputed/secp256k1'); +} catch (e) { + pre = undefined; +} + +defineCurve('secp256k1', { + type: 'short', + prime: 'k256', + p: 'ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff fffffffe fffffc2f', + a: '0', + b: '7', + n: 'ffffffff ffffffff ffffffff fffffffe baaedce6 af48a03b bfd25e8c d0364141', + h: '1', + hash: hash.sha256, + + // Precomputed endomorphism + beta: '7ae96a2b657c07106e64479eac3434e99cf0497512f58995c1396c28719501ee', + lambda: '5363ad4cc05c30e0a5261c028812645a122e22ea20816678df02967c1b23bd72', + basis: [ + { + a: '3086d221a7d46bcde86c90e49284eb15', + b: '-e4437ed6010e88286f547fa90abfe4c3' + }, + { + a: '114ca50f7a8e2f3f657c1108d9d44cfd8', + b: '3086d221a7d46bcde86c90e49284eb15' + } + ], + + gRed: false, + g: [ + '79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798', + '483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8', + pre + ] +}); + +},{"../elliptic":89,"./precomputed/secp256k1":102,"hash.js":108}],96:[function(require,module,exports){ +'use strict'; + +var BN = require('bn.js'); +var HmacDRBG = require('hmac-drbg'); +var elliptic = require('../../elliptic'); +var utils = elliptic.utils; +var assert = utils.assert; + +var KeyPair = require('./key'); +var Signature = require('./signature'); + +function EC(options) { + if (!(this instanceof EC)) + return new EC(options); + + // Shortcut `elliptic.ec(curve-name)` + if (typeof options === 'string') { + assert(elliptic.curves.hasOwnProperty(options), 'Unknown curve ' + options); + + options = elliptic.curves[options]; + } + + // Shortcut for `elliptic.ec(elliptic.curves.curveName)` + if (options instanceof elliptic.curves.PresetCurve) + options = { curve: options }; + + this.curve = options.curve.curve; + this.n = this.curve.n; + this.nh = this.n.ushrn(1); + this.g = this.curve.g; + + // Point on curve + this.g = options.curve.g; + this.g.precompute(options.curve.n.bitLength() + 1); + + // Hash for function for DRBG + this.hash = options.hash || options.curve.hash; +} +module.exports = EC; + +EC.prototype.keyPair = function keyPair(options) { + return new KeyPair(this, options); +}; + +EC.prototype.keyFromPrivate = function keyFromPrivate(priv, enc) { + return KeyPair.fromPrivate(this, priv, enc); +}; + +EC.prototype.keyFromPublic = function keyFromPublic(pub, enc) { + return KeyPair.fromPublic(this, pub, enc); +}; + +EC.prototype.genKeyPair = function genKeyPair(options) { + if (!options) + options = {}; + + // Instantiate Hmac_DRBG + var drbg = new HmacDRBG({ + hash: this.hash, + pers: options.pers, + persEnc: options.persEnc || 'utf8', + entropy: options.entropy || elliptic.rand(this.hash.hmacStrength), + entropyEnc: options.entropy && options.entropyEnc || 'utf8', + nonce: this.n.toArray() + }); + + var bytes = this.n.byteLength(); + var ns2 = this.n.sub(new BN(2)); + do { + var priv = new BN(drbg.generate(bytes)); + if (priv.cmp(ns2) > 0) + continue; + + priv.iaddn(1); + return this.keyFromPrivate(priv); + } while (true); +}; + +EC.prototype._truncateToN = function truncateToN(msg, truncOnly) { + var delta = msg.byteLength() * 8 - this.n.bitLength(); + if (delta > 0) + msg = msg.ushrn(delta); + if (!truncOnly && msg.cmp(this.n) >= 0) + return msg.sub(this.n); + else + return msg; +}; + +EC.prototype.sign = function sign(msg, key, enc, options) { + if (typeof enc === 'object') { + options = enc; + enc = null; + } + if (!options) + options = {}; + + key = this.keyFromPrivate(key, enc); + msg = this._truncateToN(new BN(msg, 16)); + + // Zero-extend key to provide enough entropy + var bytes = this.n.byteLength(); + var bkey = key.getPrivate().toArray('be', bytes); + + // Zero-extend nonce to have the same byte size as N + var nonce = msg.toArray('be', bytes); + + // Instantiate Hmac_DRBG + var drbg = new HmacDRBG({ + hash: this.hash, + entropy: bkey, + nonce: nonce, + pers: options.pers, + persEnc: options.persEnc || 'utf8' + }); + + // Number of bytes to generate + var ns1 = this.n.sub(new BN(1)); + + for (var iter = 0; true; iter++) { + var k = options.k ? + options.k(iter) : + new BN(drbg.generate(this.n.byteLength())); + k = this._truncateToN(k, true); + if (k.cmpn(1) <= 0 || k.cmp(ns1) >= 0) + continue; + + var kp = this.g.mul(k); + if (kp.isInfinity()) + continue; + + var kpX = kp.getX(); + var r = kpX.umod(this.n); + if (r.cmpn(0) === 0) + continue; + + var s = k.invm(this.n).mul(r.mul(key.getPrivate()).iadd(msg)); + s = s.umod(this.n); + if (s.cmpn(0) === 0) + continue; + + var recoveryParam = (kp.getY().isOdd() ? 1 : 0) | + (kpX.cmp(r) !== 0 ? 2 : 0); + + // Use complement of `s`, if it is > `n / 2` + if (options.canonical && s.cmp(this.nh) > 0) { + s = this.n.sub(s); + recoveryParam ^= 1; + } + + return new Signature({ r: r, s: s, recoveryParam: recoveryParam }); + } +}; + +EC.prototype.verify = function verify(msg, signature, key, enc) { + msg = this._truncateToN(new BN(msg, 16)); + key = this.keyFromPublic(key, enc); + signature = new Signature(signature, 'hex'); + + // Perform primitive values validation + var r = signature.r; + var s = signature.s; + if (r.cmpn(1) < 0 || r.cmp(this.n) >= 0) + return false; + if (s.cmpn(1) < 0 || s.cmp(this.n) >= 0) + return false; + + // Validate signature + var sinv = s.invm(this.n); + var u1 = sinv.mul(msg).umod(this.n); + var u2 = sinv.mul(r).umod(this.n); + + if (!this.curve._maxwellTrick) { + var p = this.g.mulAdd(u1, key.getPublic(), u2); + if (p.isInfinity()) + return false; + + return p.getX().umod(this.n).cmp(r) === 0; + } + + // NOTE: Greg Maxwell's trick, inspired by: + // https://git.io/vad3K + + var p = this.g.jmulAdd(u1, key.getPublic(), u2); + if (p.isInfinity()) + return false; + + // Compare `p.x` of Jacobian point with `r`, + // this will do `p.x == r * p.z^2` instead of multiplying `p.x` by the + // inverse of `p.z^2` + return p.eqXToP(r); +}; + +EC.prototype.recoverPubKey = function(msg, signature, j, enc) { + assert((3 & j) === j, 'The recovery param is more than two bits'); + signature = new Signature(signature, enc); + + var n = this.n; + var e = new BN(msg); + var r = signature.r; + var s = signature.s; + + // A set LSB signifies that the y-coordinate is odd + var isYOdd = j & 1; + var isSecondKey = j >> 1; + if (r.cmp(this.curve.p.umod(this.curve.n)) >= 0 && isSecondKey) + throw new Error('Unable to find sencond key candinate'); + + // 1.1. Let x = r + jn. + if (isSecondKey) + r = this.curve.pointFromX(r.add(this.curve.n), isYOdd); + else + r = this.curve.pointFromX(r, isYOdd); + + var rInv = signature.r.invm(n); + var s1 = n.sub(e).mul(rInv).umod(n); + var s2 = s.mul(rInv).umod(n); + + // 1.6.1 Compute Q = r^-1 (sR - eG) + // Q = r^-1 (sR + -eG) + return this.g.mulAdd(s1, r, s2); +}; + +EC.prototype.getKeyRecoveryParam = function(e, signature, Q, enc) { + signature = new Signature(signature, enc); + if (signature.recoveryParam !== null) + return signature.recoveryParam; + + for (var i = 0; i < 4; i++) { + var Qprime; + try { + Qprime = this.recoverPubKey(e, signature, i); + } catch (e) { + continue; + } + + if (Qprime.eq(Q)) + return i; + } + throw new Error('Unable to find valid recovery factor'); +}; + +},{"../../elliptic":89,"./key":97,"./signature":98,"bn.js":40,"hmac-drbg":120}],97:[function(require,module,exports){ +'use strict'; + +var BN = require('bn.js'); +var elliptic = require('../../elliptic'); +var utils = elliptic.utils; +var assert = utils.assert; + +function KeyPair(ec, options) { + this.ec = ec; + this.priv = null; + this.pub = null; + + // KeyPair(ec, { priv: ..., pub: ... }) + if (options.priv) + this._importPrivate(options.priv, options.privEnc); + if (options.pub) + this._importPublic(options.pub, options.pubEnc); +} +module.exports = KeyPair; + +KeyPair.fromPublic = function fromPublic(ec, pub, enc) { + if (pub instanceof KeyPair) + return pub; + + return new KeyPair(ec, { + pub: pub, + pubEnc: enc + }); +}; + +KeyPair.fromPrivate = function fromPrivate(ec, priv, enc) { + if (priv instanceof KeyPair) + return priv; + + return new KeyPair(ec, { + priv: priv, + privEnc: enc + }); +}; + +KeyPair.prototype.validate = function validate() { + var pub = this.getPublic(); + + if (pub.isInfinity()) + return { result: false, reason: 'Invalid public key' }; + if (!pub.validate()) + return { result: false, reason: 'Public key is not a point' }; + if (!pub.mul(this.ec.curve.n).isInfinity()) + return { result: false, reason: 'Public key * N != O' }; + + return { result: true, reason: null }; +}; + +KeyPair.prototype.getPublic = function getPublic(compact, enc) { + // compact is optional argument + if (typeof compact === 'string') { + enc = compact; + compact = null; + } + + if (!this.pub) + this.pub = this.ec.g.mul(this.priv); + + if (!enc) + return this.pub; + + return this.pub.encode(enc, compact); +}; + +KeyPair.prototype.getPrivate = function getPrivate(enc) { + if (enc === 'hex') + return this.priv.toString(16, 2); + else + return this.priv; +}; + +KeyPair.prototype._importPrivate = function _importPrivate(key, enc) { + this.priv = new BN(key, enc || 16); + + // Ensure that the priv won't be bigger than n, otherwise we may fail + // in fixed multiplication method + this.priv = this.priv.umod(this.ec.curve.n); +}; + +KeyPair.prototype._importPublic = function _importPublic(key, enc) { + if (key.x || key.y) { + // Montgomery points only have an `x` coordinate. + // Weierstrass/Edwards points on the other hand have both `x` and + // `y` coordinates. + if (this.ec.curve.type === 'mont') { + assert(key.x, 'Need x coordinate'); + } else if (this.ec.curve.type === 'short' || + this.ec.curve.type === 'edwards') { + assert(key.x && key.y, 'Need both x and y coordinate'); + } + this.pub = this.ec.curve.point(key.x, key.y); + return; + } + this.pub = this.ec.curve.decodePoint(key, enc); +}; + +// ECDH +KeyPair.prototype.derive = function derive(pub) { + return pub.mul(this.priv).getX(); +}; + +// ECDSA +KeyPair.prototype.sign = function sign(msg, enc, options) { + return this.ec.sign(msg, this, enc, options); +}; + +KeyPair.prototype.verify = function verify(msg, signature) { + return this.ec.verify(msg, signature, this); +}; + +KeyPair.prototype.inspect = function inspect() { + return ''; +}; + +},{"../../elliptic":89,"bn.js":40}],98:[function(require,module,exports){ +'use strict'; + +var BN = require('bn.js'); + +var elliptic = require('../../elliptic'); +var utils = elliptic.utils; +var assert = utils.assert; + +function Signature(options, enc) { + if (options instanceof Signature) + return options; + + if (this._importDER(options, enc)) + return; + + assert(options.r && options.s, 'Signature without r or s'); + this.r = new BN(options.r, 16); + this.s = new BN(options.s, 16); + if (options.recoveryParam === undefined) + this.recoveryParam = null; + else + this.recoveryParam = options.recoveryParam; +} +module.exports = Signature; + +function Position() { + this.place = 0; +} + +function getLength(buf, p) { + var initial = buf[p.place++]; + if (!(initial & 0x80)) { + return initial; + } + var octetLen = initial & 0xf; + var val = 0; + for (var i = 0, off = p.place; i < octetLen; i++, off++) { + val <<= 8; + val |= buf[off]; + } + p.place = off; + return val; +} + +function rmPadding(buf) { + var i = 0; + var len = buf.length - 1; + while (!buf[i] && !(buf[i + 1] & 0x80) && i < len) { + i++; + } + if (i === 0) { + return buf; + } + return buf.slice(i); +} + +Signature.prototype._importDER = function _importDER(data, enc) { + data = utils.toArray(data, enc); + var p = new Position(); + if (data[p.place++] !== 0x30) { + return false; + } + var len = getLength(data, p); + if ((len + p.place) !== data.length) { + return false; + } + if (data[p.place++] !== 0x02) { + return false; + } + var rlen = getLength(data, p); + var r = data.slice(p.place, rlen + p.place); + p.place += rlen; + if (data[p.place++] !== 0x02) { + return false; + } + var slen = getLength(data, p); + if (data.length !== slen + p.place) { + return false; + } + var s = data.slice(p.place, slen + p.place); + if (r[0] === 0 && (r[1] & 0x80)) { + r = r.slice(1); + } + if (s[0] === 0 && (s[1] & 0x80)) { + s = s.slice(1); + } + + this.r = new BN(r); + this.s = new BN(s); + this.recoveryParam = null; + + return true; +}; + +function constructLength(arr, len) { + if (len < 0x80) { + arr.push(len); + return; + } + var octets = 1 + (Math.log(len) / Math.LN2 >>> 3); + arr.push(octets | 0x80); + while (--octets) { + arr.push((len >>> (octets << 3)) & 0xff); + } + arr.push(len); +} + +Signature.prototype.toDER = function toDER(enc) { + var r = this.r.toArray(); + var s = this.s.toArray(); + + // Pad values + if (r[0] & 0x80) + r = [ 0 ].concat(r); + // Pad values + if (s[0] & 0x80) + s = [ 0 ].concat(s); + + r = rmPadding(r); + s = rmPadding(s); + + while (!s[0] && !(s[1] & 0x80)) { + s = s.slice(1); + } + var arr = [ 0x02 ]; + constructLength(arr, r.length); + arr = arr.concat(r); + arr.push(0x02); + constructLength(arr, s.length); + var backHalf = arr.concat(s); + var res = [ 0x30 ]; + constructLength(res, backHalf.length); + res = res.concat(backHalf); + return utils.encode(res, enc); +}; + +},{"../../elliptic":89,"bn.js":40}],99:[function(require,module,exports){ +'use strict'; + +var hash = require('hash.js'); +var elliptic = require('../../elliptic'); +var utils = elliptic.utils; +var assert = utils.assert; +var parseBytes = utils.parseBytes; +var KeyPair = require('./key'); +var Signature = require('./signature'); + +function EDDSA(curve) { + assert(curve === 'ed25519', 'only tested with ed25519 so far'); + + if (!(this instanceof EDDSA)) + return new EDDSA(curve); + + var curve = elliptic.curves[curve].curve; + this.curve = curve; + this.g = curve.g; + this.g.precompute(curve.n.bitLength() + 1); + + this.pointClass = curve.point().constructor; + this.encodingLength = Math.ceil(curve.n.bitLength() / 8); + this.hash = hash.sha512; +} + +module.exports = EDDSA; + +/** +* @param {Array|String} message - message bytes +* @param {Array|String|KeyPair} secret - secret bytes or a keypair +* @returns {Signature} - signature +*/ +EDDSA.prototype.sign = function sign(message, secret) { + message = parseBytes(message); + var key = this.keyFromSecret(secret); + var r = this.hashInt(key.messagePrefix(), message); + var R = this.g.mul(r); + var Rencoded = this.encodePoint(R); + var s_ = this.hashInt(Rencoded, key.pubBytes(), message) + .mul(key.priv()); + var S = r.add(s_).umod(this.curve.n); + return this.makeSignature({ R: R, S: S, Rencoded: Rencoded }); +}; + +/** +* @param {Array} message - message bytes +* @param {Array|String|Signature} sig - sig bytes +* @param {Array|String|Point|KeyPair} pub - public key +* @returns {Boolean} - true if public key matches sig of message +*/ +EDDSA.prototype.verify = function verify(message, sig, pub) { + message = parseBytes(message); + sig = this.makeSignature(sig); + var key = this.keyFromPublic(pub); + var h = this.hashInt(sig.Rencoded(), key.pubBytes(), message); + var SG = this.g.mul(sig.S()); + var RplusAh = sig.R().add(key.pub().mul(h)); + return RplusAh.eq(SG); +}; + +EDDSA.prototype.hashInt = function hashInt() { + var hash = this.hash(); + for (var i = 0; i < arguments.length; i++) + hash.update(arguments[i]); + return utils.intFromLE(hash.digest()).umod(this.curve.n); +}; + +EDDSA.prototype.keyFromPublic = function keyFromPublic(pub) { + return KeyPair.fromPublic(this, pub); +}; + +EDDSA.prototype.keyFromSecret = function keyFromSecret(secret) { + return KeyPair.fromSecret(this, secret); +}; + +EDDSA.prototype.makeSignature = function makeSignature(sig) { + if (sig instanceof Signature) + return sig; + return new Signature(this, sig); +}; + +/** +* * https://tools.ietf.org/html/draft-josefsson-eddsa-ed25519-03#section-5.2 +* +* EDDSA defines methods for encoding and decoding points and integers. These are +* helper convenience methods, that pass along to utility functions implied +* parameters. +* +*/ +EDDSA.prototype.encodePoint = function encodePoint(point) { + var enc = point.getY().toArray('le', this.encodingLength); + enc[this.encodingLength - 1] |= point.getX().isOdd() ? 0x80 : 0; + return enc; +}; + +EDDSA.prototype.decodePoint = function decodePoint(bytes) { + bytes = utils.parseBytes(bytes); + + var lastIx = bytes.length - 1; + var normed = bytes.slice(0, lastIx).concat(bytes[lastIx] & ~0x80); + var xIsOdd = (bytes[lastIx] & 0x80) !== 0; + + var y = utils.intFromLE(normed); + return this.curve.pointFromY(y, xIsOdd); +}; + +EDDSA.prototype.encodeInt = function encodeInt(num) { + return num.toArray('le', this.encodingLength); +}; + +EDDSA.prototype.decodeInt = function decodeInt(bytes) { + return utils.intFromLE(bytes); +}; + +EDDSA.prototype.isPoint = function isPoint(val) { + return val instanceof this.pointClass; +}; + +},{"../../elliptic":89,"./key":100,"./signature":101,"hash.js":108}],100:[function(require,module,exports){ +'use strict'; + +var elliptic = require('../../elliptic'); +var utils = elliptic.utils; +var assert = utils.assert; +var parseBytes = utils.parseBytes; +var cachedProperty = utils.cachedProperty; + +/** +* @param {EDDSA} eddsa - instance +* @param {Object} params - public/private key parameters +* +* @param {Array} [params.secret] - secret seed bytes +* @param {Point} [params.pub] - public key point (aka `A` in eddsa terms) +* @param {Array} [params.pub] - public key point encoded as bytes +* +*/ +function KeyPair(eddsa, params) { + this.eddsa = eddsa; + this._secret = parseBytes(params.secret); + if (eddsa.isPoint(params.pub)) + this._pub = params.pub; + else + this._pubBytes = parseBytes(params.pub); +} + +KeyPair.fromPublic = function fromPublic(eddsa, pub) { + if (pub instanceof KeyPair) + return pub; + return new KeyPair(eddsa, { pub: pub }); +}; + +KeyPair.fromSecret = function fromSecret(eddsa, secret) { + if (secret instanceof KeyPair) + return secret; + return new KeyPair(eddsa, { secret: secret }); +}; + +KeyPair.prototype.secret = function secret() { + return this._secret; +}; + +cachedProperty(KeyPair, 'pubBytes', function pubBytes() { + return this.eddsa.encodePoint(this.pub()); +}); + +cachedProperty(KeyPair, 'pub', function pub() { + if (this._pubBytes) + return this.eddsa.decodePoint(this._pubBytes); + return this.eddsa.g.mul(this.priv()); +}); + +cachedProperty(KeyPair, 'privBytes', function privBytes() { + var eddsa = this.eddsa; + var hash = this.hash(); + var lastIx = eddsa.encodingLength - 1; + + var a = hash.slice(0, eddsa.encodingLength); + a[0] &= 248; + a[lastIx] &= 127; + a[lastIx] |= 64; + + return a; +}); + +cachedProperty(KeyPair, 'priv', function priv() { + return this.eddsa.decodeInt(this.privBytes()); +}); + +cachedProperty(KeyPair, 'hash', function hash() { + return this.eddsa.hash().update(this.secret()).digest(); +}); + +cachedProperty(KeyPair, 'messagePrefix', function messagePrefix() { + return this.hash().slice(this.eddsa.encodingLength); +}); + +KeyPair.prototype.sign = function sign(message) { + assert(this._secret, 'KeyPair can only verify'); + return this.eddsa.sign(message, this); +}; + +KeyPair.prototype.verify = function verify(message, sig) { + return this.eddsa.verify(message, sig, this); +}; + +KeyPair.prototype.getSecret = function getSecret(enc) { + assert(this._secret, 'KeyPair is public only'); + return utils.encode(this.secret(), enc); +}; + +KeyPair.prototype.getPublic = function getPublic(enc) { + return utils.encode(this.pubBytes(), enc); +}; + +module.exports = KeyPair; + +},{"../../elliptic":89}],101:[function(require,module,exports){ +'use strict'; + +var BN = require('bn.js'); +var elliptic = require('../../elliptic'); +var utils = elliptic.utils; +var assert = utils.assert; +var cachedProperty = utils.cachedProperty; +var parseBytes = utils.parseBytes; + +/** +* @param {EDDSA} eddsa - eddsa instance +* @param {Array|Object} sig - +* @param {Array|Point} [sig.R] - R point as Point or bytes +* @param {Array|bn} [sig.S] - S scalar as bn or bytes +* @param {Array} [sig.Rencoded] - R point encoded +* @param {Array} [sig.Sencoded] - S scalar encoded +*/ +function Signature(eddsa, sig) { + this.eddsa = eddsa; + + if (typeof sig !== 'object') + sig = parseBytes(sig); + + if (Array.isArray(sig)) { + sig = { + R: sig.slice(0, eddsa.encodingLength), + S: sig.slice(eddsa.encodingLength) + }; + } + + assert(sig.R && sig.S, 'Signature without R or S'); + + if (eddsa.isPoint(sig.R)) + this._R = sig.R; + if (sig.S instanceof BN) + this._S = sig.S; + + this._Rencoded = Array.isArray(sig.R) ? sig.R : sig.Rencoded; + this._Sencoded = Array.isArray(sig.S) ? sig.S : sig.Sencoded; +} + +cachedProperty(Signature, 'S', function S() { + return this.eddsa.decodeInt(this.Sencoded()); +}); + +cachedProperty(Signature, 'R', function R() { + return this.eddsa.decodePoint(this.Rencoded()); +}); + +cachedProperty(Signature, 'Rencoded', function Rencoded() { + return this.eddsa.encodePoint(this.R()); +}); + +cachedProperty(Signature, 'Sencoded', function Sencoded() { + return this.eddsa.encodeInt(this.S()); +}); + +Signature.prototype.toBytes = function toBytes() { + return this.Rencoded().concat(this.Sencoded()); +}; + +Signature.prototype.toHex = function toHex() { + return utils.encode(this.toBytes(), 'hex').toUpperCase(); +}; + +module.exports = Signature; + +},{"../../elliptic":89,"bn.js":40}],102:[function(require,module,exports){ +module.exports = { + doubles: { + step: 4, + points: [ + [ + 'e60fce93b59e9ec53011aabc21c23e97b2a31369b87a5ae9c44ee89e2a6dec0a', + 'f7e3507399e595929db99f34f57937101296891e44d23f0be1f32cce69616821' + ], + [ + '8282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f51508', + '11f8a8098557dfe45e8256e830b60ace62d613ac2f7b17bed31b6eaff6e26caf' + ], + [ + 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(k.cmpn(0) !== 0 && k.andln(ws - 1) === 0) ? (w + 1) : 1; + for (var i = 1; i < shift; i++) + naf.push(0); + k.iushrn(shift); + } + + return naf; +} +utils.getNAF = getNAF; + +// Represent k1, k2 in a Joint Sparse Form +function getJSF(k1, k2) { + var jsf = [ + [], + [] + ]; + + k1 = k1.clone(); + k2 = k2.clone(); + var d1 = 0; + var d2 = 0; + while (k1.cmpn(-d1) > 0 || k2.cmpn(-d2) > 0) { + + // First phase + var m14 = (k1.andln(3) + d1) & 3; + var m24 = (k2.andln(3) + d2) & 3; + if (m14 === 3) + m14 = -1; + if (m24 === 3) + m24 = -1; + var u1; + if ((m14 & 1) === 0) { + u1 = 0; + } else { + var m8 = (k1.andln(7) + d1) & 7; + if ((m8 === 3 || m8 === 5) && m24 === 2) + u1 = -m14; + else + u1 = m14; + } + jsf[0].push(u1); + + var u2; + if ((m24 & 1) === 0) { + u2 = 0; + } else { + var m8 = (k2.andln(7) + d2) & 7; + if ((m8 === 3 || m8 === 5) && m14 === 2) + u2 = -m24; + else + u2 = m24; + } + jsf[1].push(u2); + + // Second phase + if (2 * d1 === u1 + 1) + d1 = 1 - d1; + if (2 * d2 === u2 + 1) + d2 = 1 - d2; + k1.iushrn(1); + k2.iushrn(1); + } + + return jsf; +} +utils.getJSF = getJSF; + +function cachedProperty(obj, name, computer) { + var key = '_' + name; + obj.prototype[name] = function cachedProperty() { + return this[key] !== undefined ? this[key] : + this[key] = computer.call(this); + }; +} +utils.cachedProperty = cachedProperty; + +function parseBytes(bytes) { + return typeof bytes === 'string' ? utils.toArray(bytes, 'hex') : + bytes; +} +utils.parseBytes = parseBytes; + +function intFromLE(bytes) { + return new BN(bytes, 'hex', 'le'); +} +utils.intFromLE = intFromLE; + + +},{"bn.js":40,"minimalistic-assert":127,"minimalistic-crypto-utils":128}],104:[function(require,module,exports){ +module.exports={ + "_args": [ + [ + "elliptic@^6.0.0", + "/usr/local/lib/node_modules/browserify/node_modules/browserify-sign" + ] + ], + "_from": "elliptic@>=6.0.0 <7.0.0", + "_id": "elliptic@6.4.0", + "_inCache": true, + "_installable": true, + "_location": "/browserify/elliptic", + "_nodeVersion": "7.0.0", + "_npmOperationalInternal": { + "host": "packages-18-east.internal.npmjs.com", + "tmp": "tmp/elliptic-6.4.0.tgz_1487798866428_0.30510620190761983" + }, + "_npmUser": { + "email": "fedor@indutny.com", + "name": "indutny" + }, + "_npmVersion": "3.10.8", + "_phantomChildren": {}, + "_requested": { + "name": "elliptic", + "raw": "elliptic@^6.0.0", + "rawSpec": "^6.0.0", + "scope": null, + "spec": ">=6.0.0 <7.0.0", + "type": "range" + }, + "_requiredBy": [ + "/browserify/browserify-sign", + "/browserify/create-ecdh" + ], + "_resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.4.0.tgz", + "_shasum": "cac9af8762c85836187003c8dfe193e5e2eae5df", + "_shrinkwrap": null, + "_spec": "elliptic@^6.0.0", + "_where": "/usr/local/lib/node_modules/browserify/node_modules/browserify-sign", + "author": { + "email": "fedor@indutny.com", + "name": "Fedor Indutny" + }, + "bugs": { + "url": "https://github.com/indutny/elliptic/issues" + }, + "dependencies": { + "bn.js": "^4.4.0", + "brorand": "^1.0.1", + "hash.js": "^1.0.0", + "hmac-drbg": "^1.0.0", + "inherits": "^2.0.1", + "minimalistic-assert": "^1.0.0", + "minimalistic-crypto-utils": "^1.0.0" + }, + "description": "EC cryptography", + "devDependencies": { + "brfs": "^1.4.3", + "coveralls": "^2.11.3", + "grunt": "^0.4.5", + "grunt-browserify": "^5.0.0", + "grunt-cli": "^1.2.0", + "grunt-contrib-connect": "^1.0.0", + "grunt-contrib-copy": "^1.0.0", + "grunt-contrib-uglify": "^1.0.1", + "grunt-mocha-istanbul": "^3.0.1", + "grunt-saucelabs": "^8.6.2", + "istanbul": "^0.4.2", + "jscs": "^2.9.0", + "jshint": "^2.6.0", + "mocha": "^2.1.0" + }, + "directories": {}, + "dist": { + "shasum": "cac9af8762c85836187003c8dfe193e5e2eae5df", + "tarball": "https://registry.npmjs.org/elliptic/-/elliptic-6.4.0.tgz" + }, + "files": [ + "lib" + ], + "gitHead": "6b0d2b76caae91471649c8e21f0b1d3ba0f96090", + "homepage": "https://github.com/indutny/elliptic", + "keywords": [ + "Cryptography", + "EC", + "Elliptic", + "curve" + ], + "license": "MIT", + "main": "lib/elliptic.js", + "maintainers": [ + { + "name": "indutny", + "email": "fedor@indutny.com" + } + ], + "name": "elliptic", + "optionalDependencies": {}, + "readme": "ERROR: No README data found!", + "repository": { + "type": "git", + "url": "git+ssh://git@github.com/indutny/elliptic.git" + }, + "scripts": { + "jscs": "jscs benchmarks/*.js lib/*.js lib/**/*.js lib/**/**/*.js test/index.js", + "jshint": "jscs benchmarks/*.js lib/*.js lib/**/*.js lib/**/**/*.js test/index.js", + "lint": "npm run jscs && npm run jshint", + "test": "npm run lint && npm run unit", + "unit": "istanbul test _mocha --reporter=spec test/index.js", + "version": "grunt dist && git add dist/" + }, + "version": "6.4.0" +} + +},{}],105:[function(require,module,exports){ +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +function EventEmitter() { + this._events = this._events || {}; + this._maxListeners = this._maxListeners || undefined; +} +module.exports = EventEmitter; + +// Backwards-compat with node 0.10.x +EventEmitter.EventEmitter = EventEmitter; + +EventEmitter.prototype._events = undefined; +EventEmitter.prototype._maxListeners = undefined; + +// By default EventEmitters will print a warning if more than 10 listeners are +// added to it. This is a useful default which helps finding memory leaks. +EventEmitter.defaultMaxListeners = 10; + +// Obviously not all Emitters should be limited to 10. This function allows +// that to be increased. Set to zero for unlimited. +EventEmitter.prototype.setMaxListeners = function(n) { + if (!isNumber(n) || n < 0 || isNaN(n)) + throw TypeError('n must be a positive number'); + this._maxListeners = n; + return this; +}; + +EventEmitter.prototype.emit = function(type) { + var er, handler, len, args, i, listeners; + + if (!this._events) + this._events = {}; + + // If there is no 'error' event listener then throw. + if (type === 'error') { + if (!this._events.error || + (isObject(this._events.error) && !this._events.error.length)) { + er = arguments[1]; + if (er instanceof Error) { + throw er; // Unhandled 'error' event + } else { + // At least give some kind of context to the user + var err = new Error('Uncaught, unspecified "error" event. (' + er + ')'); + err.context = er; + throw err; + } + } + } + + handler = this._events[type]; + + if (isUndefined(handler)) + return false; + + if (isFunction(handler)) { + switch (arguments.length) { + // fast cases + case 1: + handler.call(this); + break; + case 2: + handler.call(this, arguments[1]); + break; + case 3: + handler.call(this, arguments[1], arguments[2]); + break; + // slower + default: + args = Array.prototype.slice.call(arguments, 1); + handler.apply(this, args); + } + } else if (isObject(handler)) { + args = Array.prototype.slice.call(arguments, 1); + listeners = handler.slice(); + len = listeners.length; + for (i = 0; i < len; i++) + listeners[i].apply(this, args); + } + + return true; +}; + +EventEmitter.prototype.addListener = function(type, listener) { + var m; + + if (!isFunction(listener)) + throw TypeError('listener must be a function'); + + if (!this._events) + this._events = {}; + + // To avoid recursion in the case that type === "newListener"! Before + // adding it to the listeners, first emit "newListener". + if (this._events.newListener) + this.emit('newListener', type, + isFunction(listener.listener) ? + listener.listener : listener); + + if (!this._events[type]) + // Optimize the case of one listener. Don't need the extra array object. + this._events[type] = listener; + else if (isObject(this._events[type])) + // If we've already got an array, just append. + this._events[type].push(listener); + else + // Adding the second element, need to change to array. + this._events[type] = [this._events[type], listener]; + + // Check for listener leak + if (isObject(this._events[type]) && !this._events[type].warned) { + if (!isUndefined(this._maxListeners)) { + m = this._maxListeners; + } else { + m = EventEmitter.defaultMaxListeners; + } + + if (m && m > 0 && this._events[type].length > m) { + this._events[type].warned = true; + console.error('(node) warning: possible EventEmitter memory ' + + 'leak detected. %d listeners added. ' + + 'Use emitter.setMaxListeners() to increase limit.', + this._events[type].length); + if (typeof console.trace === 'function') { + // not supported in IE 10 + console.trace(); + } + } + } + + return this; +}; + +EventEmitter.prototype.on = EventEmitter.prototype.addListener; + +EventEmitter.prototype.once = function(type, listener) { + if (!isFunction(listener)) + throw TypeError('listener must be a function'); + + var fired = false; + + function g() { + this.removeListener(type, g); + + if (!fired) { + fired = true; + listener.apply(this, arguments); + } + } + + g.listener = listener; + this.on(type, g); + + return this; +}; + +// emits a 'removeListener' event iff the listener was removed +EventEmitter.prototype.removeListener = function(type, listener) { + var list, position, length, i; + + if (!isFunction(listener)) + throw TypeError('listener must be a function'); + + if (!this._events || !this._events[type]) + return this; + + list = this._events[type]; + length = list.length; + position = -1; + + if (list === listener || + (isFunction(list.listener) && list.listener === listener)) { + delete this._events[type]; + if (this._events.removeListener) + this.emit('removeListener', type, listener); + + } else if (isObject(list)) { + for (i = length; i-- > 0;) { + if (list[i] === listener || + (list[i].listener && list[i].listener === listener)) { + position = i; + break; + } + } + + if (position < 0) + return this; + + if (list.length === 1) { + list.length = 0; + delete this._events[type]; + } else { + list.splice(position, 1); + } + + if (this._events.removeListener) + this.emit('removeListener', type, listener); + } + + return this; +}; + +EventEmitter.prototype.removeAllListeners = function(type) { + var key, listeners; + + if (!this._events) + return this; + + // not listening for removeListener, no need to emit + if (!this._events.removeListener) { + if (arguments.length === 0) + this._events = {}; + else if (this._events[type]) + delete this._events[type]; + return this; + } + + // emit removeListener for all listeners on all events + if (arguments.length === 0) { + for (key in this._events) { + if (key === 'removeListener') continue; + this.removeAllListeners(key); + } + this.removeAllListeners('removeListener'); + this._events = {}; + return this; + } + + listeners = this._events[type]; + + if (isFunction(listeners)) { + this.removeListener(type, listeners); + } else if (listeners) { + // LIFO order + while (listeners.length) + this.removeListener(type, listeners[listeners.length - 1]); + } + delete this._events[type]; + + return this; +}; + +EventEmitter.prototype.listeners = function(type) { + var ret; + if (!this._events || !this._events[type]) + ret = []; + else if (isFunction(this._events[type])) + ret = [this._events[type]]; + else + ret = this._events[type].slice(); + return ret; +}; + +EventEmitter.prototype.listenerCount = function(type) { + if (this._events) { + var evlistener = this._events[type]; + + if (isFunction(evlistener)) + return 1; + else if (evlistener) + return evlistener.length; + } + return 0; +}; + +EventEmitter.listenerCount = function(emitter, type) { + return emitter.listenerCount(type); +}; + +function isFunction(arg) { + return typeof arg === 'function'; +} + +function isNumber(arg) { + return typeof arg === 'number'; +} + +function isObject(arg) { + return typeof arg === 'object' && arg !== null; +} + +function isUndefined(arg) { + return arg === void 0; +} + +},{}],106:[function(require,module,exports){ +(function (Buffer){ +var md5 = require('create-hash/md5') +module.exports = EVP_BytesToKey +function EVP_BytesToKey (password, salt, keyLen, ivLen) { + if (!Buffer.isBuffer(password)) { + password = new Buffer(password, 'binary') + } + if (salt && !Buffer.isBuffer(salt)) { + salt = new Buffer(salt, 'binary') + } + keyLen = keyLen / 8 + ivLen = ivLen || 0 + var ki = 0 + var ii = 0 + var key = new Buffer(keyLen) + var iv = new Buffer(ivLen) + var addmd = 0 + var md_buf + var i + var bufs = [] + while (true) { + if (addmd++ > 0) { + bufs.push(md_buf) + } + bufs.push(password) + if (salt) { + bufs.push(salt) + } + md_buf = md5(Buffer.concat(bufs)) + bufs = [] + i = 0 + if (keyLen > 0) { + while (true) { + if (keyLen === 0) { + break + } + if (i === md_buf.length) { + break + } + key[ki++] = md_buf[i] + keyLen-- + i++ + } + } + if (ivLen > 0 && i !== md_buf.length) { + while (true) { + if (ivLen === 0) { + break + } + if (i === md_buf.length) { + break + } + iv[ii++] = md_buf[i] + ivLen-- + i++ + } + } + if (keyLen === 0 && ivLen === 0) { + break + } + } + for (i = 0; i < md_buf.length; i++) { + md_buf[i] = 0 + } + return { + key: key, + iv: iv + } +} + +}).call(this,require("buffer").Buffer) +},{"buffer":69,"create-hash/md5":75}],107:[function(require,module,exports){ +arguments[4][12][0].apply(exports,arguments) +},{"buffer":69,"dup":12,"inherits":123,"stream":171}],108:[function(require,module,exports){ +var hash = exports; + +hash.utils = require('./hash/utils'); +hash.common = require('./hash/common'); +hash.sha = require('./hash/sha'); +hash.ripemd = require('./hash/ripemd'); +hash.hmac = require('./hash/hmac'); + +// Proxy hash functions to the main object +hash.sha1 = hash.sha.sha1; +hash.sha256 = hash.sha.sha256; +hash.sha224 = hash.sha.sha224; +hash.sha384 = hash.sha.sha384; +hash.sha512 = hash.sha.sha512; +hash.ripemd160 = hash.ripemd.ripemd160; + +},{"./hash/common":109,"./hash/hmac":110,"./hash/ripemd":111,"./hash/sha":112,"./hash/utils":119}],109:[function(require,module,exports){ +'use strict'; + +var utils = require('./utils'); +var assert = require('minimalistic-assert'); + +function BlockHash() { + this.pending = null; + this.pendingTotal = 0; + this.blockSize = this.constructor.blockSize; + this.outSize = this.constructor.outSize; + this.hmacStrength = this.constructor.hmacStrength; + this.padLength = this.constructor.padLength / 8; + this.endian = 'big'; + + this._delta8 = this.blockSize / 8; + this._delta32 = this.blockSize / 32; +} +exports.BlockHash = BlockHash; + +BlockHash.prototype.update = function update(msg, enc) { + // Convert message to array, pad it, and join into 32bit blocks + msg = utils.toArray(msg, enc); + if (!this.pending) + this.pending = msg; + else + this.pending = this.pending.concat(msg); + this.pendingTotal += msg.length; + + // Enough data, try updating + if (this.pending.length >= this._delta8) { + msg = this.pending; + + // Process pending data in blocks + var r = msg.length % this._delta8; + this.pending = msg.slice(msg.length - r, msg.length); + if (this.pending.length === 0) + this.pending = null; + + msg = utils.join32(msg, 0, msg.length - r, this.endian); + for (var i = 0; i < msg.length; i += this._delta32) + this._update(msg, i, i + this._delta32); + } + + return this; +}; + +BlockHash.prototype.digest = function digest(enc) { + this.update(this._pad()); + assert(this.pending === null); + + return this._digest(enc); +}; + +BlockHash.prototype._pad = function pad() { + var len = this.pendingTotal; + var bytes = this._delta8; + var k = bytes - ((len + this.padLength) % bytes); + var res = new Array(k + this.padLength); + res[0] = 0x80; + for (var i = 1; i < k; i++) + res[i] = 0; + + // Append length + len <<= 3; + if (this.endian === 'big') { + for (var t = 8; t < this.padLength; t++) + res[i++] = 0; + + res[i++] = 0; + res[i++] = 0; + res[i++] = 0; + res[i++] = 0; + res[i++] = (len >>> 24) & 0xff; + res[i++] = (len >>> 16) & 0xff; + res[i++] = (len >>> 8) & 0xff; + res[i++] = len & 0xff; + } else { + res[i++] = len & 0xff; + res[i++] = (len >>> 8) & 0xff; + res[i++] = (len >>> 16) & 0xff; + res[i++] = (len >>> 24) & 0xff; + res[i++] = 0; + res[i++] = 0; + res[i++] = 0; + res[i++] = 0; + + for (t = 8; t < this.padLength; t++) + res[i++] = 0; + } + + return res; +}; + +},{"./utils":119,"minimalistic-assert":127}],110:[function(require,module,exports){ +'use strict'; + +var utils = require('./utils'); +var assert = require('minimalistic-assert'); + +function Hmac(hash, key, enc) { + if (!(this instanceof Hmac)) + return new Hmac(hash, key, enc); + this.Hash = hash; + this.blockSize = hash.blockSize / 8; + this.outSize = hash.outSize / 8; + this.inner = null; + this.outer = null; + + this._init(utils.toArray(key, enc)); +} +module.exports = Hmac; + +Hmac.prototype._init = function init(key) { + // Shorten key, if needed + if (key.length > this.blockSize) + key = new this.Hash().update(key).digest(); + assert(key.length <= this.blockSize); + + // Add padding to key + for (var i = key.length; i < this.blockSize; i++) + key.push(0); + + for (i = 0; i < key.length; i++) + key[i] ^= 0x36; + this.inner = new this.Hash().update(key); + + // 0x36 ^ 0x5c = 0x6a + for (i = 0; i < key.length; i++) + key[i] ^= 0x6a; + this.outer = new this.Hash().update(key); +}; + +Hmac.prototype.update = function update(msg, enc) { + this.inner.update(msg, enc); + return this; +}; + +Hmac.prototype.digest = function digest(enc) { + this.outer.update(this.inner.digest()); + return this.outer.digest(enc); +}; + +},{"./utils":119,"minimalistic-assert":127}],111:[function(require,module,exports){ +'use strict'; + +var utils = require('./utils'); +var common = require('./common'); + +var rotl32 = utils.rotl32; +var sum32 = utils.sum32; +var sum32_3 = utils.sum32_3; +var sum32_4 = utils.sum32_4; +var BlockHash = common.BlockHash; + +function RIPEMD160() { + if (!(this instanceof RIPEMD160)) + return new RIPEMD160(); + + BlockHash.call(this); + + this.h = [ 0x67452301, 0xefcdab89, 0x98badcfe, 0x10325476, 0xc3d2e1f0 ]; + this.endian = 'little'; +} +utils.inherits(RIPEMD160, BlockHash); +exports.ripemd160 = RIPEMD160; + +RIPEMD160.blockSize = 512; +RIPEMD160.outSize = 160; +RIPEMD160.hmacStrength = 192; +RIPEMD160.padLength = 64; + +RIPEMD160.prototype._update = function update(msg, start) { + var A = this.h[0]; + var B = this.h[1]; + var C = this.h[2]; + var D = this.h[3]; + var E = this.h[4]; + var Ah = A; + var Bh = B; + var Ch = C; + var Dh = D; + var Eh = E; + for (var j = 0; j < 80; j++) { + var T = sum32( + rotl32( + sum32_4(A, f(j, B, C, D), msg[r[j] + start], K(j)), + s[j]), + E); + A = E; + E = D; + D = rotl32(C, 10); + C = B; + B = T; + T = sum32( + rotl32( + sum32_4(Ah, f(79 - j, Bh, Ch, Dh), msg[rh[j] + start], Kh(j)), + sh[j]), + Eh); + Ah = Eh; + Eh = Dh; + Dh = rotl32(Ch, 10); + Ch = Bh; + Bh = T; + } + T = sum32_3(this.h[1], C, Dh); + this.h[1] = sum32_3(this.h[2], D, Eh); + this.h[2] = sum32_3(this.h[3], E, Ah); + this.h[3] = sum32_3(this.h[4], A, Bh); + this.h[4] = sum32_3(this.h[0], B, Ch); + this.h[0] = T; +}; + +RIPEMD160.prototype._digest = function digest(enc) { + if (enc === 'hex') + return utils.toHex32(this.h, 'little'); + else + return utils.split32(this.h, 'little'); +}; + +function f(j, x, y, z) { + if (j <= 15) + return x ^ y ^ z; + else if (j <= 31) + return (x & y) | ((~x) & z); + else if (j <= 47) + return (x | (~y)) ^ z; + else if (j <= 63) + return (x & z) | (y & (~z)); + else + return x ^ (y | (~z)); +} + +function K(j) { + if (j <= 15) + return 0x00000000; + else if (j <= 31) + return 0x5a827999; + else if (j <= 47) + return 0x6ed9eba1; + else if (j <= 63) + return 0x8f1bbcdc; + else + return 0xa953fd4e; +} + +function Kh(j) { + if (j <= 15) + return 0x50a28be6; + else if (j <= 31) + return 0x5c4dd124; + else if (j <= 47) + return 0x6d703ef3; + else if (j <= 63) + return 0x7a6d76e9; + else + return 0x00000000; +} + +var r = [ + 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, + 7, 4, 13, 1, 10, 6, 15, 3, 12, 0, 9, 5, 2, 14, 11, 8, + 3, 10, 14, 4, 9, 15, 8, 1, 2, 7, 0, 6, 13, 11, 5, 12, + 1, 9, 11, 10, 0, 8, 12, 4, 13, 3, 7, 15, 14, 5, 6, 2, + 4, 0, 5, 9, 7, 12, 2, 10, 14, 1, 3, 8, 11, 6, 15, 13 +]; + +var rh = [ + 5, 14, 7, 0, 9, 2, 11, 4, 13, 6, 15, 8, 1, 10, 3, 12, + 6, 11, 3, 7, 0, 13, 5, 10, 14, 15, 8, 12, 4, 9, 1, 2, + 15, 5, 1, 3, 7, 14, 6, 9, 11, 8, 12, 2, 10, 0, 4, 13, + 8, 6, 4, 1, 3, 11, 15, 0, 5, 12, 2, 13, 9, 7, 10, 14, + 12, 15, 10, 4, 1, 5, 8, 7, 6, 2, 13, 14, 0, 3, 9, 11 +]; + +var s = [ + 11, 14, 15, 12, 5, 8, 7, 9, 11, 13, 14, 15, 6, 7, 9, 8, + 7, 6, 8, 13, 11, 9, 7, 15, 7, 12, 15, 9, 11, 7, 13, 12, + 11, 13, 6, 7, 14, 9, 13, 15, 14, 8, 13, 6, 5, 12, 7, 5, + 11, 12, 14, 15, 14, 15, 9, 8, 9, 14, 5, 6, 8, 6, 5, 12, + 9, 15, 5, 11, 6, 8, 13, 12, 5, 12, 13, 14, 11, 8, 5, 6 +]; + +var sh = [ + 8, 9, 9, 11, 13, 15, 15, 5, 7, 7, 8, 11, 14, 14, 12, 6, + 9, 13, 15, 7, 12, 8, 9, 11, 7, 7, 12, 7, 6, 15, 13, 11, + 9, 7, 15, 11, 8, 6, 6, 14, 12, 13, 5, 14, 13, 13, 7, 5, + 15, 5, 8, 11, 14, 14, 6, 14, 6, 9, 12, 9, 12, 5, 15, 8, + 8, 5, 12, 9, 12, 5, 14, 6, 8, 13, 6, 5, 15, 13, 11, 11 +]; + +},{"./common":109,"./utils":119}],112:[function(require,module,exports){ +'use strict'; + +exports.sha1 = require('./sha/1'); +exports.sha224 = require('./sha/224'); +exports.sha256 = require('./sha/256'); +exports.sha384 = require('./sha/384'); +exports.sha512 = require('./sha/512'); + +},{"./sha/1":113,"./sha/224":114,"./sha/256":115,"./sha/384":116,"./sha/512":117}],113:[function(require,module,exports){ +'use strict'; + +var utils = require('../utils'); +var common = require('../common'); +var shaCommon = require('./common'); + +var rotl32 = utils.rotl32; +var sum32 = utils.sum32; +var sum32_5 = utils.sum32_5; +var ft_1 = shaCommon.ft_1; +var BlockHash = common.BlockHash; + +var sha1_K = [ + 0x5A827999, 0x6ED9EBA1, + 0x8F1BBCDC, 0xCA62C1D6 +]; + +function SHA1() { + if (!(this instanceof SHA1)) + return new SHA1(); + + BlockHash.call(this); + this.h = [ + 0x67452301, 0xefcdab89, 0x98badcfe, + 0x10325476, 0xc3d2e1f0 ]; + this.W = new Array(80); +} + +utils.inherits(SHA1, BlockHash); +module.exports = SHA1; + +SHA1.blockSize = 512; +SHA1.outSize = 160; +SHA1.hmacStrength = 80; +SHA1.padLength = 64; + +SHA1.prototype._update = function _update(msg, start) { + var W = this.W; + + for (var i = 0; i < 16; i++) + W[i] = msg[start + i]; + + for(; i < W.length; i++) + W[i] = rotl32(W[i - 3] ^ W[i - 8] ^ W[i - 14] ^ W[i - 16], 1); + + var a = this.h[0]; + var b = this.h[1]; + var c = this.h[2]; + var d = this.h[3]; + var e = this.h[4]; + + for (i = 0; i < W.length; i++) { + var s = ~~(i / 20); + var t = sum32_5(rotl32(a, 5), ft_1(s, b, c, d), e, W[i], sha1_K[s]); + e = d; + d = c; + c = rotl32(b, 30); + b = a; + a = t; + } + + this.h[0] = sum32(this.h[0], a); + this.h[1] = sum32(this.h[1], b); + this.h[2] = sum32(this.h[2], c); + this.h[3] = sum32(this.h[3], d); + this.h[4] = sum32(this.h[4], e); +}; + +SHA1.prototype._digest = function digest(enc) { + if (enc === 'hex') + return utils.toHex32(this.h, 'big'); + else + return utils.split32(this.h, 'big'); +}; + +},{"../common":109,"../utils":119,"./common":118}],114:[function(require,module,exports){ +'use strict'; + +var utils = require('../utils'); +var SHA256 = require('./256'); + +function SHA224() { + if (!(this instanceof SHA224)) + return new SHA224(); + + SHA256.call(this); + this.h = [ + 0xc1059ed8, 0x367cd507, 0x3070dd17, 0xf70e5939, + 0xffc00b31, 0x68581511, 0x64f98fa7, 0xbefa4fa4 ]; +} +utils.inherits(SHA224, SHA256); +module.exports = SHA224; + +SHA224.blockSize = 512; +SHA224.outSize = 224; +SHA224.hmacStrength = 192; +SHA224.padLength = 64; + +SHA224.prototype._digest = function digest(enc) { + // Just truncate output + if (enc === 'hex') + return utils.toHex32(this.h.slice(0, 7), 'big'); + else + return utils.split32(this.h.slice(0, 7), 'big'); +}; + + +},{"../utils":119,"./256":115}],115:[function(require,module,exports){ +'use strict'; + +var utils = require('../utils'); +var common = require('../common'); +var shaCommon = require('./common'); +var assert = require('minimalistic-assert'); + +var sum32 = utils.sum32; +var sum32_4 = utils.sum32_4; +var sum32_5 = utils.sum32_5; +var ch32 = shaCommon.ch32; +var maj32 = shaCommon.maj32; +var s0_256 = shaCommon.s0_256; +var s1_256 = shaCommon.s1_256; +var g0_256 = shaCommon.g0_256; +var g1_256 = shaCommon.g1_256; + +var BlockHash = common.BlockHash; + +var sha256_K = [ + 0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, + 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5, + 0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3, + 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174, + 0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc, + 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da, + 0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7, + 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967, + 0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13, + 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85, + 0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3, + 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070, + 0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, + 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3, + 0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208, + 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2 +]; + +function SHA256() { + if (!(this instanceof SHA256)) + return new SHA256(); + + BlockHash.call(this); + this.h = [ + 0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a, + 0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19 + ]; + this.k = sha256_K; + this.W = new Array(64); +} +utils.inherits(SHA256, BlockHash); +module.exports = SHA256; + +SHA256.blockSize = 512; +SHA256.outSize = 256; +SHA256.hmacStrength = 192; +SHA256.padLength = 64; + +SHA256.prototype._update = function _update(msg, start) { + var W = this.W; + + for (var i = 0; i < 16; i++) + W[i] = msg[start + i]; + for (; i < W.length; i++) + W[i] = sum32_4(g1_256(W[i - 2]), W[i - 7], g0_256(W[i - 15]), W[i - 16]); + + var a = this.h[0]; + var b = this.h[1]; + var c = this.h[2]; + var d = this.h[3]; + var e = this.h[4]; + var f = this.h[5]; + var g = this.h[6]; + var h = this.h[7]; + + assert(this.k.length === W.length); + for (i = 0; i < W.length; i++) { + var T1 = sum32_5(h, s1_256(e), ch32(e, f, g), this.k[i], W[i]); + var T2 = sum32(s0_256(a), maj32(a, b, c)); + h = g; + g = f; + f = e; + e = sum32(d, T1); + d = c; + c = b; + b = a; + a = sum32(T1, T2); + } + + this.h[0] = sum32(this.h[0], a); + this.h[1] = sum32(this.h[1], b); + this.h[2] = sum32(this.h[2], c); + this.h[3] = sum32(this.h[3], d); + this.h[4] = sum32(this.h[4], e); + this.h[5] = sum32(this.h[5], f); + this.h[6] = sum32(this.h[6], g); + this.h[7] = sum32(this.h[7], h); +}; + +SHA256.prototype._digest = function digest(enc) { + if (enc === 'hex') + return utils.toHex32(this.h, 'big'); + else + return utils.split32(this.h, 'big'); +}; + +},{"../common":109,"../utils":119,"./common":118,"minimalistic-assert":127}],116:[function(require,module,exports){ +'use strict'; + +var utils = require('../utils'); + +var SHA512 = require('./512'); + +function SHA384() { + if (!(this instanceof SHA384)) + return new SHA384(); + + SHA512.call(this); + this.h = [ + 0xcbbb9d5d, 0xc1059ed8, + 0x629a292a, 0x367cd507, + 0x9159015a, 0x3070dd17, + 0x152fecd8, 0xf70e5939, + 0x67332667, 0xffc00b31, + 0x8eb44a87, 0x68581511, + 0xdb0c2e0d, 0x64f98fa7, + 0x47b5481d, 0xbefa4fa4 ]; +} +utils.inherits(SHA384, SHA512); +module.exports = SHA384; + +SHA384.blockSize = 1024; +SHA384.outSize = 384; +SHA384.hmacStrength = 192; +SHA384.padLength = 128; + +SHA384.prototype._digest = function digest(enc) { + if (enc === 'hex') + return utils.toHex32(this.h.slice(0, 12), 'big'); + else + return utils.split32(this.h.slice(0, 12), 'big'); +}; + +},{"../utils":119,"./512":117}],117:[function(require,module,exports){ +'use strict'; + +var utils = require('../utils'); +var common = require('../common'); +var assert = require('minimalistic-assert'); + +var rotr64_hi = utils.rotr64_hi; +var rotr64_lo = utils.rotr64_lo; +var shr64_hi = utils.shr64_hi; +var shr64_lo = utils.shr64_lo; +var sum64 = utils.sum64; +var sum64_hi = utils.sum64_hi; +var sum64_lo = utils.sum64_lo; +var sum64_4_hi = utils.sum64_4_hi; +var sum64_4_lo = utils.sum64_4_lo; +var sum64_5_hi = utils.sum64_5_hi; +var sum64_5_lo = utils.sum64_5_lo; + +var BlockHash = common.BlockHash; + +var sha512_K = [ + 0x428a2f98, 0xd728ae22, 0x71374491, 0x23ef65cd, + 0xb5c0fbcf, 0xec4d3b2f, 0xe9b5dba5, 0x8189dbbc, + 0x3956c25b, 0xf348b538, 0x59f111f1, 0xb605d019, + 0x923f82a4, 0xaf194f9b, 0xab1c5ed5, 0xda6d8118, + 0xd807aa98, 0xa3030242, 0x12835b01, 0x45706fbe, + 0x243185be, 0x4ee4b28c, 0x550c7dc3, 0xd5ffb4e2, + 0x72be5d74, 0xf27b896f, 0x80deb1fe, 0x3b1696b1, + 0x9bdc06a7, 0x25c71235, 0xc19bf174, 0xcf692694, + 0xe49b69c1, 0x9ef14ad2, 0xefbe4786, 0x384f25e3, + 0x0fc19dc6, 0x8b8cd5b5, 0x240ca1cc, 0x77ac9c65, + 0x2de92c6f, 0x592b0275, 0x4a7484aa, 0x6ea6e483, + 0x5cb0a9dc, 0xbd41fbd4, 0x76f988da, 0x831153b5, + 0x983e5152, 0xee66dfab, 0xa831c66d, 0x2db43210, + 0xb00327c8, 0x98fb213f, 0xbf597fc7, 0xbeef0ee4, + 0xc6e00bf3, 0x3da88fc2, 0xd5a79147, 0x930aa725, + 0x06ca6351, 0xe003826f, 0x14292967, 0x0a0e6e70, + 0x27b70a85, 0x46d22ffc, 0x2e1b2138, 0x5c26c926, + 0x4d2c6dfc, 0x5ac42aed, 0x53380d13, 0x9d95b3df, + 0x650a7354, 0x8baf63de, 0x766a0abb, 0x3c77b2a8, + 0x81c2c92e, 0x47edaee6, 0x92722c85, 0x1482353b, + 0xa2bfe8a1, 0x4cf10364, 0xa81a664b, 0xbc423001, + 0xc24b8b70, 0xd0f89791, 0xc76c51a3, 0x0654be30, + 0xd192e819, 0xd6ef5218, 0xd6990624, 0x5565a910, + 0xf40e3585, 0x5771202a, 0x106aa070, 0x32bbd1b8, + 0x19a4c116, 0xb8d2d0c8, 0x1e376c08, 0x5141ab53, + 0x2748774c, 0xdf8eeb99, 0x34b0bcb5, 0xe19b48a8, + 0x391c0cb3, 0xc5c95a63, 0x4ed8aa4a, 0xe3418acb, + 0x5b9cca4f, 0x7763e373, 0x682e6ff3, 0xd6b2b8a3, + 0x748f82ee, 0x5defb2fc, 0x78a5636f, 0x43172f60, + 0x84c87814, 0xa1f0ab72, 0x8cc70208, 0x1a6439ec, + 0x90befffa, 0x23631e28, 0xa4506ceb, 0xde82bde9, + 0xbef9a3f7, 0xb2c67915, 0xc67178f2, 0xe372532b, + 0xca273ece, 0xea26619c, 0xd186b8c7, 0x21c0c207, + 0xeada7dd6, 0xcde0eb1e, 0xf57d4f7f, 0xee6ed178, + 0x06f067aa, 0x72176fba, 0x0a637dc5, 0xa2c898a6, + 0x113f9804, 0xbef90dae, 0x1b710b35, 0x131c471b, + 0x28db77f5, 0x23047d84, 0x32caab7b, 0x40c72493, + 0x3c9ebe0a, 0x15c9bebc, 0x431d67c4, 0x9c100d4c, + 0x4cc5d4be, 0xcb3e42b6, 0x597f299c, 0xfc657e2a, + 0x5fcb6fab, 0x3ad6faec, 0x6c44198c, 0x4a475817 +]; + +function SHA512() { + if (!(this instanceof SHA512)) + return new SHA512(); + + BlockHash.call(this); + this.h = [ + 0x6a09e667, 0xf3bcc908, + 0xbb67ae85, 0x84caa73b, + 0x3c6ef372, 0xfe94f82b, + 0xa54ff53a, 0x5f1d36f1, + 0x510e527f, 0xade682d1, + 0x9b05688c, 0x2b3e6c1f, + 0x1f83d9ab, 0xfb41bd6b, + 0x5be0cd19, 0x137e2179 ]; + this.k = sha512_K; + this.W = new Array(160); +} +utils.inherits(SHA512, BlockHash); +module.exports = SHA512; + +SHA512.blockSize = 1024; +SHA512.outSize = 512; +SHA512.hmacStrength = 192; +SHA512.padLength = 128; + +SHA512.prototype._prepareBlock = function _prepareBlock(msg, start) { + var W = this.W; + + // 32 x 32bit words + for (var i = 0; i < 32; i++) + W[i] = msg[start + i]; + for (; i < W.length; i += 2) { + var c0_hi = g1_512_hi(W[i - 4], W[i - 3]); // i - 2 + var c0_lo = g1_512_lo(W[i - 4], W[i - 3]); + var c1_hi = W[i - 14]; // i - 7 + var c1_lo = W[i - 13]; + var c2_hi = g0_512_hi(W[i - 30], W[i - 29]); // i - 15 + var c2_lo = g0_512_lo(W[i - 30], W[i - 29]); + var c3_hi = W[i - 32]; // i - 16 + var c3_lo = W[i - 31]; + + W[i] = sum64_4_hi( + c0_hi, c0_lo, + c1_hi, c1_lo, + c2_hi, c2_lo, + c3_hi, c3_lo); + W[i + 1] = sum64_4_lo( + c0_hi, c0_lo, + c1_hi, c1_lo, + c2_hi, c2_lo, + c3_hi, c3_lo); + } +}; + +SHA512.prototype._update = function _update(msg, start) { + this._prepareBlock(msg, start); + + var W = this.W; + + var ah = this.h[0]; + var al = this.h[1]; + var bh = this.h[2]; + var bl = this.h[3]; + var ch = this.h[4]; + var cl = this.h[5]; + var dh = this.h[6]; + var dl = this.h[7]; + var eh = this.h[8]; + var el = this.h[9]; + var fh = this.h[10]; + var fl = this.h[11]; + var gh = this.h[12]; + var gl = this.h[13]; + var hh = this.h[14]; + var hl = this.h[15]; + + assert(this.k.length === W.length); + for (var i = 0; i < W.length; i += 2) { + var c0_hi = hh; + var c0_lo = hl; + var c1_hi = s1_512_hi(eh, el); + var c1_lo = s1_512_lo(eh, el); + var c2_hi = ch64_hi(eh, el, fh, fl, gh, gl); + var c2_lo = ch64_lo(eh, el, fh, fl, gh, gl); + var c3_hi = this.k[i]; + var c3_lo = this.k[i + 1]; + var c4_hi = W[i]; + var c4_lo = W[i + 1]; + + var T1_hi = sum64_5_hi( + c0_hi, c0_lo, + c1_hi, c1_lo, + c2_hi, c2_lo, + c3_hi, c3_lo, + c4_hi, c4_lo); + var T1_lo = sum64_5_lo( + c0_hi, c0_lo, + c1_hi, c1_lo, + c2_hi, c2_lo, + c3_hi, c3_lo, + c4_hi, c4_lo); + + c0_hi = s0_512_hi(ah, al); + c0_lo = s0_512_lo(ah, al); + c1_hi = maj64_hi(ah, al, bh, bl, ch, cl); + c1_lo = maj64_lo(ah, al, bh, bl, ch, cl); + + var T2_hi = sum64_hi(c0_hi, c0_lo, c1_hi, c1_lo); + var T2_lo = sum64_lo(c0_hi, c0_lo, c1_hi, c1_lo); + + hh = gh; + hl = gl; + + gh = fh; + gl = fl; + + fh = eh; + fl = el; + + eh = sum64_hi(dh, dl, T1_hi, T1_lo); + el = sum64_lo(dl, dl, T1_hi, T1_lo); + + dh = ch; + dl = cl; + + ch = bh; + cl = bl; + + bh = ah; + bl = al; + + ah = sum64_hi(T1_hi, T1_lo, T2_hi, T2_lo); + al = sum64_lo(T1_hi, T1_lo, T2_hi, T2_lo); + } + + sum64(this.h, 0, ah, al); + sum64(this.h, 2, bh, bl); + sum64(this.h, 4, ch, cl); + sum64(this.h, 6, dh, dl); + sum64(this.h, 8, eh, el); + sum64(this.h, 10, fh, fl); + sum64(this.h, 12, gh, gl); + sum64(this.h, 14, hh, hl); +}; + +SHA512.prototype._digest = function digest(enc) { + if (enc === 'hex') + return utils.toHex32(this.h, 'big'); + else + return utils.split32(this.h, 'big'); +}; + +function ch64_hi(xh, xl, yh, yl, zh) { + var r = (xh & yh) ^ ((~xh) & zh); + if (r < 0) + r += 0x100000000; + return r; +} + +function ch64_lo(xh, xl, yh, yl, zh, zl) { + var r = (xl & yl) ^ ((~xl) & zl); + if (r < 0) + r += 0x100000000; + return r; +} + +function maj64_hi(xh, xl, yh, yl, zh) { + var r = (xh & yh) ^ (xh & zh) ^ (yh & zh); + if (r < 0) + r += 0x100000000; + return r; +} + +function maj64_lo(xh, xl, yh, yl, zh, zl) { + var r = (xl & yl) ^ (xl & zl) ^ (yl & zl); + if (r < 0) + r += 0x100000000; + return r; +} + +function s0_512_hi(xh, xl) { + var c0_hi = rotr64_hi(xh, xl, 28); + var c1_hi = rotr64_hi(xl, xh, 2); // 34 + var c2_hi = rotr64_hi(xl, xh, 7); // 39 + + var r = c0_hi ^ c1_hi ^ c2_hi; + if (r < 0) + r += 0x100000000; + return r; +} + +function s0_512_lo(xh, xl) { + var c0_lo = rotr64_lo(xh, xl, 28); + var c1_lo = rotr64_lo(xl, xh, 2); // 34 + var c2_lo = rotr64_lo(xl, xh, 7); // 39 + + var r = c0_lo ^ c1_lo ^ c2_lo; + if (r < 0) + r += 0x100000000; + return r; +} + +function s1_512_hi(xh, xl) { + var c0_hi = rotr64_hi(xh, xl, 14); + var c1_hi = rotr64_hi(xh, xl, 18); + var c2_hi = rotr64_hi(xl, xh, 9); // 41 + + var r = c0_hi ^ c1_hi ^ c2_hi; + if (r < 0) + r += 0x100000000; + return r; +} + +function s1_512_lo(xh, xl) { + var c0_lo = rotr64_lo(xh, xl, 14); + var c1_lo = rotr64_lo(xh, xl, 18); + var c2_lo = rotr64_lo(xl, xh, 9); // 41 + + var r = c0_lo ^ c1_lo ^ c2_lo; + if (r < 0) + r += 0x100000000; + return r; +} + +function g0_512_hi(xh, xl) { + var c0_hi = rotr64_hi(xh, xl, 1); + var c1_hi = rotr64_hi(xh, xl, 8); + var c2_hi = shr64_hi(xh, xl, 7); + + var r = c0_hi ^ c1_hi ^ c2_hi; + if (r < 0) + r += 0x100000000; + return r; +} + +function g0_512_lo(xh, xl) { + var c0_lo = rotr64_lo(xh, xl, 1); + var c1_lo = rotr64_lo(xh, xl, 8); + var c2_lo = shr64_lo(xh, xl, 7); + + var r = c0_lo ^ c1_lo ^ c2_lo; + if (r < 0) + r += 0x100000000; + return r; +} + +function g1_512_hi(xh, xl) { + var c0_hi = rotr64_hi(xh, xl, 19); + var c1_hi = rotr64_hi(xl, xh, 29); // 61 + var c2_hi = shr64_hi(xh, xl, 6); + + var r = c0_hi ^ c1_hi ^ c2_hi; + if (r < 0) + r += 0x100000000; + return r; +} + +function g1_512_lo(xh, xl) { + var c0_lo = rotr64_lo(xh, xl, 19); + var c1_lo = rotr64_lo(xl, xh, 29); // 61 + var c2_lo = shr64_lo(xh, xl, 6); + + var r = c0_lo ^ c1_lo ^ c2_lo; + if (r < 0) + r += 0x100000000; + return r; +} + +},{"../common":109,"../utils":119,"minimalistic-assert":127}],118:[function(require,module,exports){ +'use strict'; + +var utils = require('../utils'); +var rotr32 = utils.rotr32; + +function ft_1(s, x, y, z) { + if (s === 0) + return ch32(x, y, z); + if (s === 1 || s === 3) + return p32(x, y, z); + if (s === 2) + return maj32(x, y, z); +} +exports.ft_1 = ft_1; + +function ch32(x, y, z) { + return (x & y) ^ ((~x) & z); +} +exports.ch32 = ch32; + +function maj32(x, y, z) { + return (x & y) ^ (x & z) ^ (y & z); +} +exports.maj32 = maj32; + +function p32(x, y, z) { + return x ^ y ^ z; +} +exports.p32 = p32; + +function s0_256(x) { + return rotr32(x, 2) ^ rotr32(x, 13) ^ rotr32(x, 22); +} +exports.s0_256 = s0_256; + +function s1_256(x) { + return rotr32(x, 6) ^ rotr32(x, 11) ^ rotr32(x, 25); +} +exports.s1_256 = s1_256; + +function g0_256(x) { + return rotr32(x, 7) ^ rotr32(x, 18) ^ (x >>> 3); +} +exports.g0_256 = g0_256; + +function g1_256(x) { + return rotr32(x, 17) ^ rotr32(x, 19) ^ (x >>> 10); +} +exports.g1_256 = g1_256; + +},{"../utils":119}],119:[function(require,module,exports){ +'use strict'; + +var assert = require('minimalistic-assert'); +var inherits = require('inherits'); + +exports.inherits = inherits; + +function toArray(msg, enc) { + if (Array.isArray(msg)) + return msg.slice(); + if (!msg) + return []; + var res = []; + if (typeof msg === 'string') { + if (!enc) { + for (var i = 0; i < msg.length; i++) { + var c = msg.charCodeAt(i); + var hi = c >> 8; + var lo = c & 0xff; + if (hi) + res.push(hi, lo); + else + res.push(lo); + } + } else if (enc === 'hex') { + msg = msg.replace(/[^a-z0-9]+/ig, ''); + if (msg.length % 2 !== 0) + msg = '0' + msg; + for (i = 0; i < msg.length; i += 2) + res.push(parseInt(msg[i] + msg[i + 1], 16)); + } + } else { + for (i = 0; i < msg.length; i++) + res[i] = msg[i] | 0; + } + return res; +} +exports.toArray = toArray; + +function toHex(msg) { + var res = ''; + for (var i = 0; i < msg.length; i++) + res += zero2(msg[i].toString(16)); + return res; +} +exports.toHex = toHex; + +function htonl(w) { + var res = (w >>> 24) | + ((w >>> 8) & 0xff00) | + ((w << 8) & 0xff0000) | + ((w & 0xff) << 24); + return res >>> 0; +} +exports.htonl = htonl; + +function toHex32(msg, endian) { + var res = ''; + for (var i = 0; i < msg.length; i++) { + var w = msg[i]; + if (endian === 'little') + w = htonl(w); + res += zero8(w.toString(16)); + } + return res; +} +exports.toHex32 = toHex32; + +function zero2(word) { + if (word.length === 1) + return '0' + word; + else + return word; +} +exports.zero2 = zero2; + +function zero8(word) { + if (word.length === 7) + return '0' + word; + else if (word.length === 6) + return '00' + word; + else if (word.length === 5) + return '000' + word; + else if (word.length === 4) + return '0000' + word; + else if (word.length === 3) + return '00000' + word; + else if (word.length === 2) + return '000000' + word; + else if (word.length === 1) + return '0000000' + word; + else + return word; +} +exports.zero8 = zero8; + +function join32(msg, start, end, endian) { + var len = end - start; + assert(len % 4 === 0); + var res = new Array(len / 4); + for (var i = 0, k = start; i < res.length; i++, k += 4) { + var w; + if (endian === 'big') + w = (msg[k] << 24) | (msg[k + 1] << 16) | (msg[k + 2] << 8) | msg[k + 3]; + else + w = (msg[k + 3] << 24) | (msg[k + 2] << 16) | (msg[k + 1] << 8) | msg[k]; + res[i] = w >>> 0; + } + return res; +} +exports.join32 = join32; + +function split32(msg, endian) { + var res = new Array(msg.length * 4); + for (var i = 0, k = 0; i < msg.length; i++, k += 4) { + var m = msg[i]; + if (endian === 'big') { + res[k] = m >>> 24; + res[k + 1] = (m >>> 16) & 0xff; + res[k + 2] = (m >>> 8) & 0xff; + res[k + 3] = m & 0xff; + } else { + res[k + 3] = m >>> 24; + res[k + 2] = (m >>> 16) & 0xff; + res[k + 1] = (m >>> 8) & 0xff; + res[k] = m & 0xff; + } + } + return res; +} +exports.split32 = split32; + +function rotr32(w, b) { + return (w >>> b) | (w << (32 - b)); +} +exports.rotr32 = rotr32; + +function rotl32(w, b) { + return (w << b) | (w >>> (32 - b)); +} +exports.rotl32 = rotl32; + +function sum32(a, b) { + return (a + b) >>> 0; +} +exports.sum32 = sum32; + +function sum32_3(a, b, c) { + return (a + b + c) >>> 0; +} +exports.sum32_3 = sum32_3; + +function sum32_4(a, b, c, d) { + return (a + b + c + d) >>> 0; +} +exports.sum32_4 = sum32_4; + +function sum32_5(a, b, c, d, e) { + return (a + b + c + d + e) >>> 0; +} +exports.sum32_5 = sum32_5; + +function sum64(buf, pos, ah, al) { + var bh = buf[pos]; + var bl = buf[pos + 1]; + + var lo = (al + bl) >>> 0; + var hi = (lo < al ? 1 : 0) + ah + bh; + buf[pos] = hi >>> 0; + buf[pos + 1] = lo; +} +exports.sum64 = sum64; + +function sum64_hi(ah, al, bh, bl) { + var lo = (al + bl) >>> 0; + var hi = (lo < al ? 1 : 0) + ah + bh; + return hi >>> 0; +} +exports.sum64_hi = sum64_hi; + +function sum64_lo(ah, al, bh, bl) { + var lo = al + bl; + return lo >>> 0; +} +exports.sum64_lo = sum64_lo; + +function sum64_4_hi(ah, al, bh, bl, ch, cl, dh, dl) { + var carry = 0; + var lo = al; + lo = (lo + bl) >>> 0; + carry += lo < al ? 1 : 0; + lo = (lo + cl) >>> 0; + carry += lo < cl ? 1 : 0; + lo = (lo + dl) >>> 0; + carry += lo < dl ? 1 : 0; + + var hi = ah + bh + ch + dh + carry; + return hi >>> 0; +} +exports.sum64_4_hi = sum64_4_hi; + +function sum64_4_lo(ah, al, bh, bl, ch, cl, dh, dl) { + var lo = al + bl + cl + dl; + return lo >>> 0; +} +exports.sum64_4_lo = sum64_4_lo; + +function sum64_5_hi(ah, al, bh, bl, ch, cl, dh, dl, eh, el) { + var carry = 0; + var lo = al; + lo = (lo + bl) >>> 0; + carry += lo < al ? 1 : 0; + lo = (lo + cl) >>> 0; + carry += lo < cl ? 1 : 0; + lo = (lo + dl) >>> 0; + carry += lo < dl ? 1 : 0; + lo = (lo + el) >>> 0; + carry += lo < el ? 1 : 0; + + var hi = ah + bh + ch + dh + eh + carry; + return hi >>> 0; +} +exports.sum64_5_hi = sum64_5_hi; + +function sum64_5_lo(ah, al, bh, bl, ch, cl, dh, dl, eh, el) { + var lo = al + bl + cl + dl + el; + + return lo >>> 0; +} +exports.sum64_5_lo = sum64_5_lo; + +function rotr64_hi(ah, al, num) { + var r = (al << (32 - num)) | (ah >>> num); + return r >>> 0; +} +exports.rotr64_hi = rotr64_hi; + +function rotr64_lo(ah, al, num) { + var r = (ah << (32 - num)) | (al >>> num); + return r >>> 0; +} +exports.rotr64_lo = rotr64_lo; + +function shr64_hi(ah, al, num) { + return ah >>> num; +} +exports.shr64_hi = shr64_hi; + +function shr64_lo(ah, al, num) { + var r = (ah << (32 - num)) | (al >>> num); + return r >>> 0; +} +exports.shr64_lo = shr64_lo; + +},{"inherits":123,"minimalistic-assert":127}],120:[function(require,module,exports){ +'use strict'; + +var hash = require('hash.js'); +var utils = require('minimalistic-crypto-utils'); +var assert = require('minimalistic-assert'); + +function HmacDRBG(options) { + if (!(this instanceof HmacDRBG)) + return new HmacDRBG(options); + this.hash = options.hash; + this.predResist = !!options.predResist; + + this.outLen = this.hash.outSize; + this.minEntropy = options.minEntropy || this.hash.hmacStrength; + + this._reseed = null; + this.reseedInterval = null; + this.K = null; + this.V = null; + + var entropy = utils.toArray(options.entropy, options.entropyEnc || 'hex'); + var nonce = utils.toArray(options.nonce, options.nonceEnc || 'hex'); + var pers = utils.toArray(options.pers, options.persEnc || 'hex'); + assert(entropy.length >= (this.minEntropy / 8), + 'Not enough entropy. Minimum is: ' + this.minEntropy + ' bits'); + this._init(entropy, nonce, pers); +} +module.exports = HmacDRBG; + +HmacDRBG.prototype._init = function init(entropy, nonce, pers) { + var seed = entropy.concat(nonce).concat(pers); + + this.K = new Array(this.outLen / 8); + this.V = new Array(this.outLen / 8); + for (var i = 0; i < this.V.length; i++) { + this.K[i] = 0x00; + this.V[i] = 0x01; + } + + this._update(seed); + this._reseed = 1; + this.reseedInterval = 0x1000000000000; // 2^48 +}; + +HmacDRBG.prototype._hmac = function hmac() { + return new hash.hmac(this.hash, this.K); +}; + +HmacDRBG.prototype._update = function update(seed) { + var kmac = this._hmac() + .update(this.V) + .update([ 0x00 ]); + if (seed) + kmac = kmac.update(seed); + this.K = kmac.digest(); + this.V = this._hmac().update(this.V).digest(); + if (!seed) + return; + + this.K = this._hmac() + .update(this.V) + .update([ 0x01 ]) + .update(seed) + .digest(); + this.V = this._hmac().update(this.V).digest(); +}; + +HmacDRBG.prototype.reseed = function reseed(entropy, entropyEnc, add, addEnc) { + // Optional entropy enc + if (typeof entropyEnc !== 'string') { + addEnc = add; + add = entropyEnc; + entropyEnc = null; + } + + entropy = utils.toArray(entropy, entropyEnc); + add = utils.toArray(add, addEnc); + + assert(entropy.length >= (this.minEntropy / 8), + 'Not enough entropy. Minimum is: ' + this.minEntropy + ' bits'); + + this._update(entropy.concat(add || [])); + this._reseed = 1; +}; + +HmacDRBG.prototype.generate = function generate(len, enc, add, addEnc) { + if (this._reseed > this.reseedInterval) + throw new Error('Reseed is required'); + + // Optional encoding + if (typeof enc !== 'string') { + addEnc = add; + add = enc; + enc = null; + } + + // Optional additional data + if (add) { + add = utils.toArray(add, addEnc || 'hex'); + this._update(add); + } + + var temp = []; + while (temp.length < len) { + this.V = this._hmac().update(this.V).digest(); + temp = temp.concat(this.V); + } + + var res = temp.slice(0, len); + this._update(add); + this._reseed++; + return utils.encode(res, enc); +}; + +},{"hash.js":108,"minimalistic-assert":127,"minimalistic-crypto-utils":128}],121:[function(require,module,exports){ +exports.read = function (buffer, offset, isLE, mLen, nBytes) { + var e, m + var eLen = nBytes * 8 - mLen - 1 + var eMax = (1 << eLen) - 1 + var eBias = eMax >> 1 + var nBits = -7 + var i = isLE ? (nBytes - 1) : 0 + var d = isLE ? -1 : 1 + var s = buffer[offset + i] + + i += d + + e = s & ((1 << (-nBits)) - 1) + s >>= (-nBits) + nBits += eLen + for (; nBits > 0; e = e * 256 + buffer[offset + i], i += d, nBits -= 8) {} + + m = e & ((1 << (-nBits)) - 1) + e >>= (-nBits) + nBits += mLen + for (; nBits > 0; m = m * 256 + buffer[offset + i], i += d, nBits -= 8) {} + + if (e === 0) { + e = 1 - eBias + } else if (e === eMax) { + return m ? NaN : ((s ? -1 : 1) * Infinity) + } else { + m = m + Math.pow(2, mLen) + e = e - eBias + } + return (s ? -1 : 1) * m * Math.pow(2, e - mLen) +} + +exports.write = function (buffer, value, offset, isLE, mLen, nBytes) { + var e, m, c + var eLen = nBytes * 8 - mLen - 1 + var eMax = (1 << eLen) - 1 + var eBias = eMax >> 1 + var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0) + var i = isLE ? 0 : (nBytes - 1) + var d = isLE ? 1 : -1 + var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0 + + value = Math.abs(value) + + if (isNaN(value) || value === Infinity) { + m = isNaN(value) ? 1 : 0 + e = eMax + } else { + e = Math.floor(Math.log(value) / Math.LN2) + if (value * (c = Math.pow(2, -e)) < 1) { + e-- + c *= 2 + } + if (e + eBias >= 1) { + value += rt / c + } else { + value += rt * Math.pow(2, 1 - eBias) + } + if (value * c >= 2) { + e++ + c /= 2 + } + + if (e + eBias >= eMax) { + m = 0 + e = eMax + } else if (e + eBias >= 1) { + m = (value * c - 1) * Math.pow(2, mLen) + e = e + eBias + } else { + m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen) + e = 0 + } + } + + for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {} + + e = (e << mLen) | m + eLen += mLen + for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {} + + buffer[offset + i - d] |= s * 128 +} + +},{}],122:[function(require,module,exports){ + +var indexOf = [].indexOf; + +module.exports = function(arr, obj){ + if (indexOf) return arr.indexOf(obj); + for (var i = 0; i < arr.length; ++i) { + if (arr[i] === obj) return i; + } + return -1; +}; +},{}],123:[function(require,module,exports){ +arguments[4][13][0].apply(exports,arguments) +},{"dup":13}],124:[function(require,module,exports){ +/*! + * Determine if an object is a Buffer + * + * @author Feross Aboukhadijeh + * @license MIT + */ + +// The _isBuffer check is for Safari 5-7 support, because it's missing +// Object.prototype.constructor. Remove this eventually +module.exports = function (obj) { + return obj != null && (isBuffer(obj) || isSlowBuffer(obj) || !!obj._isBuffer) +} + +function isBuffer (obj) { + return !!obj.constructor && typeof obj.constructor.isBuffer === 'function' && obj.constructor.isBuffer(obj) +} + +// For Node v0.10 support. Remove this eventually. +function isSlowBuffer (obj) { + return typeof obj.readFloatLE === 'function' && typeof obj.slice === 'function' && isBuffer(obj.slice(0, 0)) +} + +},{}],125:[function(require,module,exports){ +var toString = {}.toString; + +module.exports = Array.isArray || function (arr) { + return toString.call(arr) == '[object Array]'; +}; + +},{}],126:[function(require,module,exports){ +var bn = require('bn.js'); +var brorand = require('brorand'); + +function MillerRabin(rand) { + this.rand = rand || new brorand.Rand(); +} +module.exports = MillerRabin; + +MillerRabin.create = function create(rand) { + return new MillerRabin(rand); +}; + +MillerRabin.prototype._rand = function _rand(n) { + var len = n.bitLength(); + var buf = this.rand.generate(Math.ceil(len / 8)); + + // Set low bits + buf[0] |= 3; + + // Mask high bits + var mask = len & 0x7; + if (mask !== 0) + buf[buf.length - 1] >>= 7 - mask; + + return new bn(buf); +} + +MillerRabin.prototype.test = function test(n, k, cb) { + var len = n.bitLength(); + var red = bn.mont(n); + var rone = new bn(1).toRed(red); + + if (!k) + k = Math.max(1, (len / 48) | 0); + + // Find d and s, (n - 1) = (2 ^ s) * d; + var n1 = n.subn(1); + var n2 = n1.subn(1); + for (var s = 0; !n1.testn(s); s++) {} + var d = n.shrn(s); + + var rn1 = n1.toRed(red); + + var prime = true; + for (; k > 0; k--) { + var a = this._rand(n2); + if (cb) + cb(a); + + var x = a.toRed(red).redPow(d); + if (x.cmp(rone) === 0 || x.cmp(rn1) === 0) + continue; + + for (var i = 1; i < s; i++) { + x = x.redSqr(); + + if (x.cmp(rone) === 0) + return false; + if (x.cmp(rn1) === 0) + break; + } + + if (i === s) + return false; + } + + return prime; +}; + +MillerRabin.prototype.getDivisor = function getDivisor(n, k) { + var len = n.bitLength(); + var red = bn.mont(n); + var rone = new bn(1).toRed(red); + + if (!k) + k = Math.max(1, (len / 48) | 0); + + // Find d and s, (n - 1) = (2 ^ s) * d; + var n1 = n.subn(1); + var n2 = n1.subn(1); + for (var s = 0; !n1.testn(s); s++) {} + var d = n.shrn(s); + + var rn1 = n1.toRed(red); + + for (; k > 0; k--) { + var a = this._rand(n2); + + var g = n.gcd(a); + if (g.cmpn(1) !== 0) + return g; + + var x = a.toRed(red).redPow(d); + if (x.cmp(rone) === 0 || x.cmp(rn1) === 0) + continue; + + for (var i = 1; i < s; i++) { + x = x.redSqr(); + + if (x.cmp(rone) === 0) + return x.fromRed().subn(1).gcd(n); + if (x.cmp(rn1) === 0) + break; + } + + if (i === s) { + x = x.redSqr(); + return x.fromRed().subn(1).gcd(n); + } + } + + return false; +}; + +},{"bn.js":40,"brorand":41}],127:[function(require,module,exports){ +module.exports = assert; + +function assert(val, msg) { + if (!val) + throw new Error(msg || 'Assertion failed'); +} + +assert.equal = function assertEqual(l, r, msg) { + if (l != r) + throw new Error(msg || ('Assertion failed: ' + l + ' != ' + r)); +}; + +},{}],128:[function(require,module,exports){ +'use strict'; + +var utils = exports; + +function toArray(msg, enc) { + if (Array.isArray(msg)) + return msg.slice(); + if (!msg) + return []; + var res = []; + if (typeof msg !== 'string') { + for (var i = 0; i < msg.length; i++) + res[i] = msg[i] | 0; + return res; + } + if (enc === 'hex') { + msg = msg.replace(/[^a-z0-9]+/ig, ''); + if (msg.length % 2 !== 0) + msg = '0' + msg; + for (var i = 0; i < msg.length; i += 2) + res.push(parseInt(msg[i] + msg[i + 1], 16)); + } else { + for (var i = 0; i < msg.length; i++) { + var c = msg.charCodeAt(i); + var hi = c >> 8; + var lo = c & 0xff; + if (hi) + res.push(hi, lo); + else + res.push(lo); + } + } + return res; +} +utils.toArray = toArray; + +function zero2(word) { + if (word.length === 1) + return '0' + word; + else + return word; +} +utils.zero2 = zero2; + +function toHex(msg) { + var res = ''; + for (var i = 0; i < msg.length; i++) + res += zero2(msg[i].toString(16)); + return res; +} +utils.toHex = toHex; + +utils.encode = function encode(arr, enc) { + if (enc === 'hex') + return toHex(arr); + else + return arr; +}; + +},{}],129:[function(require,module,exports){ +module.exports={"2.16.840.1.101.3.4.1.1": "aes-128-ecb", +"2.16.840.1.101.3.4.1.2": "aes-128-cbc", +"2.16.840.1.101.3.4.1.3": "aes-128-ofb", +"2.16.840.1.101.3.4.1.4": "aes-128-cfb", +"2.16.840.1.101.3.4.1.21": "aes-192-ecb", +"2.16.840.1.101.3.4.1.22": "aes-192-cbc", +"2.16.840.1.101.3.4.1.23": "aes-192-ofb", +"2.16.840.1.101.3.4.1.24": "aes-192-cfb", +"2.16.840.1.101.3.4.1.41": "aes-256-ecb", +"2.16.840.1.101.3.4.1.42": "aes-256-cbc", +"2.16.840.1.101.3.4.1.43": "aes-256-ofb", +"2.16.840.1.101.3.4.1.44": "aes-256-cfb" +} +},{}],130:[function(require,module,exports){ +// from https://github.com/indutny/self-signed/blob/gh-pages/lib/asn1.js +// Fedor, you are amazing. +'use strict' + +var asn1 = require('asn1.js') + +exports.certificate = require('./certificate') + +var RSAPrivateKey = asn1.define('RSAPrivateKey', function () { + this.seq().obj( + this.key('version').int(), + this.key('modulus').int(), + this.key('publicExponent').int(), + this.key('privateExponent').int(), + this.key('prime1').int(), + this.key('prime2').int(), + this.key('exponent1').int(), + this.key('exponent2').int(), + this.key('coefficient').int() + ) +}) +exports.RSAPrivateKey = RSAPrivateKey + +var RSAPublicKey = asn1.define('RSAPublicKey', function () { + this.seq().obj( + this.key('modulus').int(), + this.key('publicExponent').int() + ) +}) +exports.RSAPublicKey = RSAPublicKey + +var PublicKey = asn1.define('SubjectPublicKeyInfo', function () { + this.seq().obj( + this.key('algorithm').use(AlgorithmIdentifier), + this.key('subjectPublicKey').bitstr() + ) +}) +exports.PublicKey = PublicKey + +var AlgorithmIdentifier = asn1.define('AlgorithmIdentifier', function () { + this.seq().obj( + this.key('algorithm').objid(), + this.key('none').null_().optional(), + this.key('curve').objid().optional(), + this.key('params').seq().obj( + this.key('p').int(), + this.key('q').int(), + this.key('g').int() + ).optional() + ) +}) + +var PrivateKeyInfo = asn1.define('PrivateKeyInfo', function () { + this.seq().obj( + this.key('version').int(), + this.key('algorithm').use(AlgorithmIdentifier), + this.key('subjectPrivateKey').octstr() + ) +}) +exports.PrivateKey = PrivateKeyInfo +var EncryptedPrivateKeyInfo = asn1.define('EncryptedPrivateKeyInfo', function () { + this.seq().obj( + this.key('algorithm').seq().obj( + this.key('id').objid(), + this.key('decrypt').seq().obj( + this.key('kde').seq().obj( + this.key('id').objid(), + this.key('kdeparams').seq().obj( + this.key('salt').octstr(), + this.key('iters').int() + ) + ), + this.key('cipher').seq().obj( + this.key('algo').objid(), + this.key('iv').octstr() + ) + ) + ), + this.key('subjectPrivateKey').octstr() + ) +}) + +exports.EncryptedPrivateKey = EncryptedPrivateKeyInfo + +var DSAPrivateKey = asn1.define('DSAPrivateKey', function () { + this.seq().obj( + this.key('version').int(), + this.key('p').int(), + this.key('q').int(), + this.key('g').int(), + this.key('pub_key').int(), + this.key('priv_key').int() + ) +}) +exports.DSAPrivateKey = DSAPrivateKey + +exports.DSAparam = asn1.define('DSAparam', function () { + this.int() +}) + +var ECPrivateKey = asn1.define('ECPrivateKey', function () { + this.seq().obj( + this.key('version').int(), + this.key('privateKey').octstr(), + this.key('parameters').optional().explicit(0).use(ECParameters), + this.key('publicKey').optional().explicit(1).bitstr() + ) +}) +exports.ECPrivateKey = ECPrivateKey + +var ECParameters = asn1.define('ECParameters', function () { + this.choice({ + namedCurve: this.objid() + }) +}) + +exports.signature = asn1.define('signature', function () { + this.seq().obj( + this.key('r').int(), + this.key('s').int() + ) +}) + +},{"./certificate":131,"asn1.js":24}],131:[function(require,module,exports){ +// from https://github.com/Rantanen/node-dtls/blob/25a7dc861bda38cfeac93a723500eea4f0ac2e86/Certificate.js +// thanks to @Rantanen + +'use strict' + +var asn = require('asn1.js') + +var Time = asn.define('Time', function () { + this.choice({ + utcTime: this.utctime(), + generalTime: this.gentime() + }) +}) + +var AttributeTypeValue = asn.define('AttributeTypeValue', function () { + this.seq().obj( + this.key('type').objid(), + this.key('value').any() + ) +}) + +var AlgorithmIdentifier = asn.define('AlgorithmIdentifier', function () { + this.seq().obj( + this.key('algorithm').objid(), + this.key('parameters').optional() + ) +}) + +var SubjectPublicKeyInfo = asn.define('SubjectPublicKeyInfo', function () { + this.seq().obj( + this.key('algorithm').use(AlgorithmIdentifier), + this.key('subjectPublicKey').bitstr() + ) +}) + +var RelativeDistinguishedName = asn.define('RelativeDistinguishedName', function () { + this.setof(AttributeTypeValue) +}) + +var RDNSequence = asn.define('RDNSequence', function () { + this.seqof(RelativeDistinguishedName) +}) + +var Name = asn.define('Name', function () { + this.choice({ + rdnSequence: this.use(RDNSequence) + }) +}) + +var Validity = asn.define('Validity', function () { + this.seq().obj( + this.key('notBefore').use(Time), + this.key('notAfter').use(Time) + ) +}) + +var Extension = asn.define('Extension', function () { + this.seq().obj( + this.key('extnID').objid(), + this.key('critical').bool().def(false), + this.key('extnValue').octstr() + ) +}) + +var TBSCertificate = asn.define('TBSCertificate', function () { + this.seq().obj( + this.key('version').explicit(0).int(), + this.key('serialNumber').int(), + this.key('signature').use(AlgorithmIdentifier), + this.key('issuer').use(Name), + this.key('validity').use(Validity), + this.key('subject').use(Name), + this.key('subjectPublicKeyInfo').use(SubjectPublicKeyInfo), + this.key('issuerUniqueID').implicit(1).bitstr().optional(), + this.key('subjectUniqueID').implicit(2).bitstr().optional(), + this.key('extensions').explicit(3).seqof(Extension).optional() + ) +}) + +var X509Certificate = asn.define('X509Certificate', function () { + this.seq().obj( + this.key('tbsCertificate').use(TBSCertificate), + this.key('signatureAlgorithm').use(AlgorithmIdentifier), + this.key('signatureValue').bitstr() + ) +}) + +module.exports = X509Certificate + +},{"asn1.js":24}],132:[function(require,module,exports){ +(function (Buffer){ +// adapted from https://github.com/apatil/pemstrip +var findProc = /Proc-Type: 4,ENCRYPTED\n\r?DEK-Info: AES-((?:128)|(?:192)|(?:256))-CBC,([0-9A-H]+)\n\r?\n\r?([0-9A-z\n\r\+\/\=]+)\n\r?/m +var startRegex = /^-----BEGIN ((?:.* KEY)|CERTIFICATE)-----\n/m +var fullRegex = /^-----BEGIN ((?:.* KEY)|CERTIFICATE)-----\n\r?([0-9A-z\n\r\+\/\=]+)\n\r?-----END \1-----$/m +var evp = require('evp_bytestokey') +var ciphers = require('browserify-aes') +module.exports = function (okey, password) { + var key = okey.toString() + var match = key.match(findProc) + var decrypted + if (!match) { + var match2 = key.match(fullRegex) + decrypted = new Buffer(match2[2].replace(/\r?\n/g, ''), 'base64') + } else { + var suite = 'aes' + match[1] + var iv = new Buffer(match[2], 'hex') + var cipherText = new Buffer(match[3].replace(/\r?\n/g, ''), 'base64') + var cipherKey = evp(password, iv.slice(0, 8), parseInt(match[1], 10)).key + var out = [] + var cipher = ciphers.createDecipheriv(suite, cipherKey, iv) + out.push(cipher.update(cipherText)) + out.push(cipher.final()) + decrypted = Buffer.concat(out) + } + var tag = key.match(startRegex)[1] + return { + tag: tag, + data: decrypted + } +} + +}).call(this,require("buffer").Buffer) +},{"browserify-aes":45,"buffer":69,"evp_bytestokey":106}],133:[function(require,module,exports){ +(function (Buffer){ +var asn1 = require('./asn1') +var aesid = require('./aesid.json') +var fixProc = require('./fixProc') +var ciphers = require('browserify-aes') +var compat = require('pbkdf2') +module.exports = parseKeys + +function parseKeys (buffer) { + var password + if (typeof buffer === 'object' && !Buffer.isBuffer(buffer)) { + password = buffer.passphrase + buffer = buffer.key + } + if (typeof buffer === 'string') { + buffer = new Buffer(buffer) + } + + var stripped = fixProc(buffer, password) + + var type = stripped.tag + var data = stripped.data + var subtype, ndata + switch (type) { + case 'CERTIFICATE': + ndata = asn1.certificate.decode(data, 'der').tbsCertificate.subjectPublicKeyInfo + // falls through + case 'PUBLIC KEY': + if (!ndata) { + ndata = asn1.PublicKey.decode(data, 'der') + } + subtype = ndata.algorithm.algorithm.join('.') + switch (subtype) { + case '1.2.840.113549.1.1.1': + return asn1.RSAPublicKey.decode(ndata.subjectPublicKey.data, 'der') + case '1.2.840.10045.2.1': + ndata.subjectPrivateKey = ndata.subjectPublicKey + return { + type: 'ec', + data: ndata + } + case '1.2.840.10040.4.1': + ndata.algorithm.params.pub_key = asn1.DSAparam.decode(ndata.subjectPublicKey.data, 'der') + return { + type: 'dsa', + data: ndata.algorithm.params + } + default: throw new Error('unknown key id ' + subtype) + } + throw new Error('unknown key type ' + type) + case 'ENCRYPTED PRIVATE KEY': + data = asn1.EncryptedPrivateKey.decode(data, 'der') + data = decrypt(data, password) + // falls through + case 'PRIVATE KEY': + ndata = asn1.PrivateKey.decode(data, 'der') + subtype = ndata.algorithm.algorithm.join('.') + switch (subtype) { + case '1.2.840.113549.1.1.1': + return asn1.RSAPrivateKey.decode(ndata.subjectPrivateKey, 'der') + case '1.2.840.10045.2.1': + return { + curve: ndata.algorithm.curve, + privateKey: asn1.ECPrivateKey.decode(ndata.subjectPrivateKey, 'der').privateKey + } + case '1.2.840.10040.4.1': + ndata.algorithm.params.priv_key = asn1.DSAparam.decode(ndata.subjectPrivateKey, 'der') + return { + type: 'dsa', + params: ndata.algorithm.params + } + default: throw new Error('unknown key id ' + subtype) + } + throw new Error('unknown key type ' + type) + case 'RSA PUBLIC KEY': + return asn1.RSAPublicKey.decode(data, 'der') + case 'RSA PRIVATE KEY': + return asn1.RSAPrivateKey.decode(data, 'der') + case 'DSA PRIVATE KEY': + return { + type: 'dsa', + params: asn1.DSAPrivateKey.decode(data, 'der') + } + case 'EC PRIVATE KEY': + data = asn1.ECPrivateKey.decode(data, 'der') + return { + curve: data.parameters.value, + privateKey: data.privateKey + } + default: throw new Error('unknown key type ' + type) + } +} +parseKeys.signature = asn1.signature +function decrypt (data, password) { + var salt = data.algorithm.decrypt.kde.kdeparams.salt + var iters = parseInt(data.algorithm.decrypt.kde.kdeparams.iters.toString(), 10) + var algo = aesid[data.algorithm.decrypt.cipher.algo.join('.')] + var iv = data.algorithm.decrypt.cipher.iv + var cipherText = data.subjectPrivateKey + var keylen = parseInt(algo.split('-')[1], 10) / 8 + var key = compat.pbkdf2Sync(password, salt, iters, keylen) + var cipher = ciphers.createDecipheriv(algo, key, iv) + var out = [] + out.push(cipher.update(cipherText)) + out.push(cipher.final()) + return Buffer.concat(out) +} + +}).call(this,require("buffer").Buffer) +},{"./aesid.json":129,"./asn1":130,"./fixProc":132,"browserify-aes":45,"buffer":69,"pbkdf2":134}],134:[function(require,module,exports){ +arguments[4][4][0].apply(exports,arguments) +},{"./lib/async":135,"./lib/sync":138,"dup":4}],135:[function(require,module,exports){ +arguments[4][5][0].apply(exports,arguments) +},{"./default-encoding":136,"./precondition":137,"./sync":138,"_process":140,"dup":5,"safe-buffer":162}],136:[function(require,module,exports){ +arguments[4][6][0].apply(exports,arguments) +},{"_process":140,"dup":6}],137:[function(require,module,exports){ +arguments[4][7][0].apply(exports,arguments) +},{"dup":7}],138:[function(require,module,exports){ +arguments[4][8][0].apply(exports,arguments) +},{"./default-encoding":136,"./precondition":137,"create-hash/md5":75,"dup":8,"ripemd160":161,"safe-buffer":162,"sha.js":164}],139:[function(require,module,exports){ +(function (process){ +'use strict'; + +if (!process.version || + process.version.indexOf('v0.') === 0 || + process.version.indexOf('v1.') === 0 && process.version.indexOf('v1.8.') !== 0) { + module.exports = nextTick; +} else { + module.exports = process.nextTick; +} + +function nextTick(fn, arg1, arg2, arg3) { + if (typeof fn !== 'function') { + throw new TypeError('"callback" argument must be a function'); + } + var len = arguments.length; + var args, i; + switch (len) { + case 0: + case 1: + return process.nextTick(fn); + case 2: + return process.nextTick(function afterTickOne() { + fn.call(null, arg1); + }); + case 3: + return process.nextTick(function afterTickTwo() { + fn.call(null, arg1, arg2); + }); + case 4: + return process.nextTick(function afterTickThree() { + fn.call(null, arg1, arg2, arg3); + }); + default: + args = new Array(len - 1); + i = 0; + while (i < args.length) { + args[i++] = arguments[i]; + } + return process.nextTick(function afterTick() { + fn.apply(null, args); + }); + } +} + +}).call(this,require('_process')) +},{"_process":140}],140:[function(require,module,exports){ +// shim for using process in browser +var process = module.exports = {}; + +// cached from whatever global is present so that test runners that stub it +// don't break things. But we need to wrap it in a try catch in case it is +// wrapped in strict mode code which doesn't define any globals. It's inside a +// function because try/catches deoptimize in certain engines. + +var cachedSetTimeout; +var cachedClearTimeout; + +function defaultSetTimout() { + throw new Error('setTimeout has not been defined'); +} +function defaultClearTimeout () { + throw new Error('clearTimeout has not been defined'); +} +(function () { + try { + if (typeof setTimeout === 'function') { + cachedSetTimeout = setTimeout; + } else { + cachedSetTimeout = defaultSetTimout; + } + } catch (e) { + cachedSetTimeout = defaultSetTimout; + } + try { + if (typeof clearTimeout === 'function') { + cachedClearTimeout = clearTimeout; + } else { + cachedClearTimeout = defaultClearTimeout; + } + } catch (e) { + cachedClearTimeout = defaultClearTimeout; + } +} ()) +function runTimeout(fun) { + if (cachedSetTimeout === setTimeout) { + //normal enviroments in sane situations + return setTimeout(fun, 0); + } + // if setTimeout wasn't available but was latter defined + if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) { + cachedSetTimeout = setTimeout; + return setTimeout(fun, 0); + } + try { + // when when somebody has screwed with setTimeout but no I.E. maddness + return cachedSetTimeout(fun, 0); + } catch(e){ + try { + // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally + return cachedSetTimeout.call(null, fun, 0); + } catch(e){ + // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error + return cachedSetTimeout.call(this, fun, 0); + } + } + + +} +function runClearTimeout(marker) { + if (cachedClearTimeout === clearTimeout) { + //normal enviroments in sane situations + return clearTimeout(marker); + } + // if clearTimeout wasn't available but was latter defined + if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) { + cachedClearTimeout = clearTimeout; + return clearTimeout(marker); + } + try { + // when when somebody has screwed with setTimeout but no I.E. maddness + return cachedClearTimeout(marker); + } catch (e){ + try { + // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally + return cachedClearTimeout.call(null, marker); + } catch (e){ + // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error. + // Some versions of I.E. have different rules for clearTimeout vs setTimeout + return cachedClearTimeout.call(this, marker); + } + } + + + +} +var queue = []; +var draining = false; +var currentQueue; +var queueIndex = -1; + +function cleanUpNextTick() { + if (!draining || !currentQueue) { + return; + } + draining = false; + if (currentQueue.length) { + queue = currentQueue.concat(queue); + } else { + queueIndex = -1; + } + if (queue.length) { + drainQueue(); + } +} + +function drainQueue() { + if (draining) { + return; + } + var timeout = runTimeout(cleanUpNextTick); + draining = true; + + var len = queue.length; + while(len) { + currentQueue = queue; + queue = []; + while (++queueIndex < len) { + if (currentQueue) { + currentQueue[queueIndex].run(); + } + } + queueIndex = -1; + len = queue.length; + } + currentQueue = null; + draining = false; + runClearTimeout(timeout); +} + +process.nextTick = function (fun) { + var args = new Array(arguments.length - 1); + if (arguments.length > 1) { + for (var i = 1; i < arguments.length; i++) { + args[i - 1] = arguments[i]; + } + } + queue.push(new Item(fun, args)); + if (queue.length === 1 && !draining) { + runTimeout(drainQueue); + } +}; + +// v8 likes predictible objects +function Item(fun, array) { + this.fun = fun; + this.array = array; +} +Item.prototype.run = function () { + this.fun.apply(null, this.array); +}; +process.title = 'browser'; +process.browser = true; +process.env = {}; +process.argv = []; +process.version = ''; // empty string to avoid regexp issues +process.versions = {}; + +function noop() {} + +process.on = noop; +process.addListener = noop; +process.once = noop; +process.off = noop; +process.removeListener = noop; +process.removeAllListeners = noop; +process.emit = noop; +process.prependListener = noop; +process.prependOnceListener = noop; + +process.listeners = function (name) { return [] } + +process.binding = function (name) { + throw new Error('process.binding is not supported'); +}; + +process.cwd = function () { return '/' }; +process.chdir = function (dir) { + throw new Error('process.chdir is not supported'); +}; +process.umask = function() { return 0; }; + +},{}],141:[function(require,module,exports){ +exports.publicEncrypt = require('./publicEncrypt'); +exports.privateDecrypt = require('./privateDecrypt'); + +exports.privateEncrypt = function privateEncrypt(key, buf) { + return exports.publicEncrypt(key, buf, true); +}; + +exports.publicDecrypt = function publicDecrypt(key, buf) { + return exports.privateDecrypt(key, buf, true); +}; +},{"./privateDecrypt":143,"./publicEncrypt":144}],142:[function(require,module,exports){ +(function (Buffer){ +var createHash = require('create-hash'); +module.exports = function (seed, len) { + var t = new Buffer(''); + var i = 0, c; + while (t.length < len) { + c = i2ops(i++); + t = Buffer.concat([t, createHash('sha1').update(seed).update(c).digest()]); + } + return t.slice(0, len); +}; + +function i2ops(c) { + var out = new Buffer(4); + out.writeUInt32BE(c,0); + return out; +} +}).call(this,require("buffer").Buffer) +},{"buffer":69,"create-hash":73}],143:[function(require,module,exports){ +(function (Buffer){ +var parseKeys = require('parse-asn1'); +var mgf = require('./mgf'); +var xor = require('./xor'); +var bn = require('bn.js'); +var crt = require('browserify-rsa'); +var createHash = require('create-hash'); +var withPublic = require('./withPublic'); +module.exports = function privateDecrypt(private_key, enc, reverse) { + var padding; + if (private_key.padding) { + padding = private_key.padding; + } else if (reverse) { + padding = 1; + } else { + padding = 4; + } + + var key = parseKeys(private_key); + var k = key.modulus.byteLength(); + if (enc.length > k || new bn(enc).cmp(key.modulus) >= 0) { + throw new Error('decryption error'); + } + var msg; + if (reverse) { + msg = withPublic(new bn(enc), key); + } else { + msg = crt(enc, key); + } + var zBuffer = new Buffer(k - msg.length); + zBuffer.fill(0); + msg = Buffer.concat([zBuffer, msg], k); + if (padding === 4) { + return oaep(key, msg); + } else if (padding === 1) { + return pkcs1(key, msg, reverse); + } else if (padding === 3) { + return msg; + } else { + throw new Error('unknown padding'); + } +}; + +function oaep(key, msg){ + var n = key.modulus; + var k = key.modulus.byteLength(); + var mLen = msg.length; + var iHash = createHash('sha1').update(new Buffer('')).digest(); + var hLen = iHash.length; + var hLen2 = 2 * hLen; + if (msg[0] !== 0) { + throw new Error('decryption error'); + } + var maskedSeed = msg.slice(1, hLen + 1); + var maskedDb = msg.slice(hLen + 1); + var seed = xor(maskedSeed, mgf(maskedDb, hLen)); + var db = xor(maskedDb, mgf(seed, k - hLen - 1)); + if (compare(iHash, db.slice(0, hLen))) { + throw new Error('decryption error'); + } + var i = hLen; + while (db[i] === 0) { + i++; + } + if (db[i++] !== 1) { + throw new Error('decryption error'); + } + return db.slice(i); +} + +function pkcs1(key, msg, reverse){ + var p1 = msg.slice(0, 2); + var i = 2; + var status = 0; + while (msg[i++] !== 0) { + if (i >= msg.length) { + status++; + break; + } + } + var ps = msg.slice(2, i - 1); + var p2 = msg.slice(i - 1, i); + + if ((p1.toString('hex') !== '0002' && !reverse) || (p1.toString('hex') !== '0001' && reverse)){ + status++; + } + if (ps.length < 8) { + status++; + } + if (status) { + throw new Error('decryption error'); + } + return msg.slice(i); +} +function compare(a, b){ + a = new Buffer(a); + b = new Buffer(b); + var dif = 0; + var len = a.length; + if (a.length !== b.length) { + dif++; + len = Math.min(a.length, b.length); + } + var i = -1; + while (++i < len) { + dif += (a[i] ^ b[i]); + } + return dif; +} +}).call(this,require("buffer").Buffer) +},{"./mgf":142,"./withPublic":145,"./xor":146,"bn.js":40,"browserify-rsa":61,"buffer":69,"create-hash":73,"parse-asn1":133}],144:[function(require,module,exports){ +(function (Buffer){ +var parseKeys = require('parse-asn1'); +var randomBytes = require('randombytes'); +var createHash = require('create-hash'); +var mgf = require('./mgf'); +var xor = require('./xor'); +var bn = require('bn.js'); +var withPublic = require('./withPublic'); +var crt = require('browserify-rsa'); + +var constants = { + RSA_PKCS1_OAEP_PADDING: 4, + RSA_PKCS1_PADDIN: 1, + RSA_NO_PADDING: 3 +}; + +module.exports = function publicEncrypt(public_key, msg, reverse) { + var padding; + if (public_key.padding) { + padding = public_key.padding; + } else if (reverse) { + padding = 1; + } else { + padding = 4; + } + var key = parseKeys(public_key); + var paddedMsg; + if (padding === 4) { + paddedMsg = oaep(key, msg); + } else if (padding === 1) { + paddedMsg = pkcs1(key, msg, reverse); + } else if (padding === 3) { + paddedMsg = new bn(msg); + if (paddedMsg.cmp(key.modulus) >= 0) { + throw new Error('data too long for modulus'); + } + } else { + throw new Error('unknown padding'); + } + if (reverse) { + return crt(paddedMsg, key); + } else { + return withPublic(paddedMsg, key); + } +}; + +function oaep(key, msg){ + var k = key.modulus.byteLength(); + var mLen = msg.length; + var iHash = createHash('sha1').update(new Buffer('')).digest(); + var hLen = iHash.length; + var hLen2 = 2 * hLen; + if (mLen > k - hLen2 - 2) { + throw new Error('message too long'); + } + var ps = new Buffer(k - mLen - hLen2 - 2); + ps.fill(0); + var dblen = k - hLen - 1; + var seed = randomBytes(hLen); + var maskedDb = xor(Buffer.concat([iHash, ps, new Buffer([1]), msg], dblen), mgf(seed, dblen)); + var maskedSeed = xor(seed, mgf(maskedDb, hLen)); + return new bn(Buffer.concat([new Buffer([0]), maskedSeed, maskedDb], k)); +} +function pkcs1(key, msg, reverse){ + var mLen = msg.length; + var k = key.modulus.byteLength(); + if (mLen > k - 11) { + throw new Error('message too long'); + } + var ps; + if (reverse) { + ps = new Buffer(k - mLen - 3); + ps.fill(0xff); + } else { + ps = nonZero(k - mLen - 3); + } + return new bn(Buffer.concat([new Buffer([0, reverse?1:2]), ps, new Buffer([0]), msg], k)); +} +function nonZero(len, crypto) { + var out = new Buffer(len); + var i = 0; + var cache = randomBytes(len*2); + var cur = 0; + var num; + while (i < len) { + if (cur === cache.length) { + cache = randomBytes(len*2); + cur = 0; + } + num = cache[cur++]; + if (num) { + out[i++] = num; + } + } + return out; +} +}).call(this,require("buffer").Buffer) +},{"./mgf":142,"./withPublic":145,"./xor":146,"bn.js":40,"browserify-rsa":61,"buffer":69,"create-hash":73,"parse-asn1":133,"randombytes":147}],145:[function(require,module,exports){ +(function (Buffer){ +var bn = require('bn.js'); +function withPublic(paddedMsg, key) { + return new Buffer(paddedMsg + .toRed(bn.mont(key.modulus)) + .redPow(new bn(key.publicExponent)) + .fromRed() + .toArray()); +} + +module.exports = withPublic; +}).call(this,require("buffer").Buffer) +},{"bn.js":40,"buffer":69}],146:[function(require,module,exports){ +module.exports = function xor(a, b) { + var len = a.length; + var i = -1; + while (++i < len) { + a[i] ^= b[i]; + } + return a +}; +},{}],147:[function(require,module,exports){ +(function (process,global){ +'use strict' + +function oldBrowser () { + throw new Error('secure random number generation not supported by this browser\nuse chrome, FireFox or Internet Explorer 11') +} + +var Buffer = require('safe-buffer').Buffer +var crypto = global.crypto || global.msCrypto + +if (crypto && crypto.getRandomValues) { + module.exports = randomBytes +} else { + module.exports = oldBrowser +} + +function randomBytes (size, cb) { + // phantomjs needs to throw + if (size > 65536) throw new Error('requested too many random bytes') + // in case browserify isn't using the Uint8Array version + var rawBytes = new global.Uint8Array(size) + + // This will not work in older browsers. + // See https://developer.mozilla.org/en-US/docs/Web/API/window.crypto.getRandomValues + if (size > 0) { // getRandomValues fails on IE if size == 0 + crypto.getRandomValues(rawBytes) + } + + // XXX: phantomjs doesn't like a buffer being passed here + var bytes = Buffer.from(rawBytes.buffer) + + if (typeof cb === 'function') { + return process.nextTick(function () { + cb(null, bytes) + }) + } + + return bytes +} + +}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) +},{"_process":140,"safe-buffer":162}],148:[function(require,module,exports){ +module.exports = require('./lib/_stream_duplex.js'); + +},{"./lib/_stream_duplex.js":149}],149:[function(require,module,exports){ +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +// a duplex stream is just a stream that is both readable and writable. +// Since JS doesn't have multiple prototypal inheritance, this class +// prototypally inherits from Readable, and then parasitically from +// Writable. + +'use strict'; + +/**/ + +var processNextTick = require('process-nextick-args'); +/**/ + +/**/ +var objectKeys = Object.keys || function (obj) { + var keys = []; + for (var key in obj) { + keys.push(key); + }return keys; +}; +/**/ + +module.exports = Duplex; + +/**/ +var util = require('core-util-is'); +util.inherits = require('inherits'); +/**/ + +var Readable = require('./_stream_readable'); +var Writable = require('./_stream_writable'); + +util.inherits(Duplex, Readable); + +var keys = objectKeys(Writable.prototype); +for (var v = 0; v < keys.length; v++) { + var method = keys[v]; + if (!Duplex.prototype[method]) Duplex.prototype[method] = Writable.prototype[method]; +} + +function Duplex(options) { + if (!(this instanceof Duplex)) return new Duplex(options); + + Readable.call(this, options); + Writable.call(this, options); + + if (options && options.readable === false) this.readable = false; + + if (options && options.writable === false) this.writable = false; + + this.allowHalfOpen = true; + if (options && options.allowHalfOpen === false) this.allowHalfOpen = false; + + this.once('end', onend); +} + +// the no-half-open enforcer +function onend() { + // if we allow half-open state, or if the writable side ended, + // then we're ok. + if (this.allowHalfOpen || this._writableState.ended) return; + + // no more data can be written. + // But allow more writes to happen in this tick. + processNextTick(onEndNT, this); +} + +function onEndNT(self) { + self.end(); +} + +Object.defineProperty(Duplex.prototype, 'destroyed', { + get: function () { + if (this._readableState === undefined || this._writableState === undefined) { + return false; + } + return this._readableState.destroyed && this._writableState.destroyed; + }, + set: function (value) { + // we ignore the value if the stream + // has not been initialized yet + if (this._readableState === undefined || this._writableState === undefined) { + return; + } + + // backward compatibility, the user is explicitly + // managing destroyed + this._readableState.destroyed = value; + this._writableState.destroyed = value; + } +}); + +Duplex.prototype._destroy = function (err, cb) { + this.push(null); + this.end(); + + processNextTick(cb, err); +}; + +function forEach(xs, f) { + for (var i = 0, l = xs.length; i < l; i++) { + f(xs[i], i); + } +} +},{"./_stream_readable":151,"./_stream_writable":153,"core-util-is":71,"inherits":123,"process-nextick-args":139}],150:[function(require,module,exports){ +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +// a passthrough stream. +// basically just the most minimal sort of Transform stream. +// Every written chunk gets output as-is. + +'use strict'; + +module.exports = PassThrough; + +var Transform = require('./_stream_transform'); + +/**/ +var util = require('core-util-is'); +util.inherits = require('inherits'); +/**/ + +util.inherits(PassThrough, Transform); + +function PassThrough(options) { + if (!(this instanceof PassThrough)) return new PassThrough(options); + + Transform.call(this, options); +} + +PassThrough.prototype._transform = function (chunk, encoding, cb) { + cb(null, chunk); +}; +},{"./_stream_transform":152,"core-util-is":71,"inherits":123}],151:[function(require,module,exports){ +(function (process,global){ +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +'use strict'; + +/**/ + +var processNextTick = require('process-nextick-args'); +/**/ + +module.exports = Readable; + +/**/ +var isArray = require('isarray'); +/**/ + +/**/ +var Duplex; +/**/ + +Readable.ReadableState = ReadableState; + +/**/ +var EE = require('events').EventEmitter; + +var EElistenerCount = function (emitter, type) { + return emitter.listeners(type).length; +}; +/**/ + +/**/ +var Stream = require('./internal/streams/stream'); +/**/ + +// TODO(bmeurer): Change this back to const once hole checks are +// properly optimized away early in Ignition+TurboFan. +/**/ +var Buffer = require('safe-buffer').Buffer; +var OurUint8Array = global.Uint8Array || function () {}; +function _uint8ArrayToBuffer(chunk) { + return Buffer.from(chunk); +} +function _isUint8Array(obj) { + return Buffer.isBuffer(obj) || obj instanceof OurUint8Array; +} +/**/ + +/**/ +var util = require('core-util-is'); +util.inherits = require('inherits'); +/**/ + +/**/ +var debugUtil = require('util'); +var debug = void 0; +if (debugUtil && debugUtil.debuglog) { + debug = debugUtil.debuglog('stream'); +} else { + debug = function () {}; +} +/**/ + +var BufferList = require('./internal/streams/BufferList'); +var destroyImpl = require('./internal/streams/destroy'); +var StringDecoder; + +util.inherits(Readable, Stream); + +var kProxyEvents = ['error', 'close', 'destroy', 'pause', 'resume']; + +function prependListener(emitter, event, fn) { + // Sadly this is not cacheable as some libraries bundle their own + // event emitter implementation with them. + if (typeof emitter.prependListener === 'function') { + return emitter.prependListener(event, fn); + } else { + // This is a hack to make sure that our error handler is attached before any + // userland ones. NEVER DO THIS. This is here only because this code needs + // to continue to work with older versions of Node.js that do not include + // the prependListener() method. The goal is to eventually remove this hack. + if (!emitter._events || !emitter._events[event]) emitter.on(event, fn);else if (isArray(emitter._events[event])) emitter._events[event].unshift(fn);else emitter._events[event] = [fn, emitter._events[event]]; + } +} + +function ReadableState(options, stream) { + Duplex = Duplex || require('./_stream_duplex'); + + options = options || {}; + + // object stream flag. Used to make read(n) ignore n and to + // make all the buffer merging and length checks go away + this.objectMode = !!options.objectMode; + + if (stream instanceof Duplex) this.objectMode = this.objectMode || !!options.readableObjectMode; + + // the point at which it stops calling _read() to fill the buffer + // Note: 0 is a valid value, means "don't call _read preemptively ever" + var hwm = options.highWaterMark; + var defaultHwm = this.objectMode ? 16 : 16 * 1024; + this.highWaterMark = hwm || hwm === 0 ? hwm : defaultHwm; + + // cast to ints. + this.highWaterMark = Math.floor(this.highWaterMark); + + // A linked list is used to store data chunks instead of an array because the + // linked list can remove elements from the beginning faster than + // array.shift() + this.buffer = new BufferList(); + this.length = 0; + this.pipes = null; + this.pipesCount = 0; + this.flowing = null; + this.ended = false; + this.endEmitted = false; + this.reading = false; + + // a flag to be able to tell if the event 'readable'/'data' is emitted + // immediately, or on a later tick. We set this to true at first, because + // any actions that shouldn't happen until "later" should generally also + // not happen before the first read call. + this.sync = true; + + // whenever we return null, then we set a flag to say + // that we're awaiting a 'readable' event emission. + this.needReadable = false; + this.emittedReadable = false; + this.readableListening = false; + this.resumeScheduled = false; + + // has it been destroyed + this.destroyed = false; + + // Crypto is kind of old and crusty. Historically, its default string + // encoding is 'binary' so we have to make this configurable. + // Everything else in the universe uses 'utf8', though. + this.defaultEncoding = options.defaultEncoding || 'utf8'; + + // the number of writers that are awaiting a drain event in .pipe()s + this.awaitDrain = 0; + + // if true, a maybeReadMore has been scheduled + this.readingMore = false; + + this.decoder = null; + this.encoding = null; + if (options.encoding) { + if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder; + this.decoder = new StringDecoder(options.encoding); + this.encoding = options.encoding; + } +} + +function Readable(options) { + Duplex = Duplex || require('./_stream_duplex'); + + if (!(this instanceof Readable)) return new Readable(options); + + this._readableState = new ReadableState(options, this); + + // legacy + this.readable = true; + + if (options) { + if (typeof options.read === 'function') this._read = options.read; + + if (typeof options.destroy === 'function') this._destroy = options.destroy; + } + + Stream.call(this); +} + +Object.defineProperty(Readable.prototype, 'destroyed', { + get: function () { + if (this._readableState === undefined) { + return false; + } + return this._readableState.destroyed; + }, + set: function (value) { + // we ignore the value if the stream + // has not been initialized yet + if (!this._readableState) { + return; + } + + // backward compatibility, the user is explicitly + // managing destroyed + this._readableState.destroyed = value; + } +}); + +Readable.prototype.destroy = destroyImpl.destroy; +Readable.prototype._undestroy = destroyImpl.undestroy; +Readable.prototype._destroy = function (err, cb) { + this.push(null); + cb(err); +}; + +// Manually shove something into the read() buffer. +// This returns true if the highWaterMark has not been hit yet, +// similar to how Writable.write() returns true if you should +// write() some more. +Readable.prototype.push = function (chunk, encoding) { + var state = this._readableState; + var skipChunkCheck; + + if (!state.objectMode) { + if (typeof chunk === 'string') { + encoding = encoding || state.defaultEncoding; + if (encoding !== state.encoding) { + chunk = Buffer.from(chunk, encoding); + encoding = ''; + } + skipChunkCheck = true; + } + } else { + skipChunkCheck = true; + } + + return readableAddChunk(this, chunk, encoding, false, skipChunkCheck); +}; + +// Unshift should *always* be something directly out of read() +Readable.prototype.unshift = function (chunk) { + return readableAddChunk(this, chunk, null, true, false); +}; + +function readableAddChunk(stream, chunk, encoding, addToFront, skipChunkCheck) { + var state = stream._readableState; + if (chunk === null) { + state.reading = false; + onEofChunk(stream, state); + } else { + var er; + if (!skipChunkCheck) er = chunkInvalid(state, chunk); + if (er) { + stream.emit('error', er); + } else if (state.objectMode || chunk && chunk.length > 0) { + if (typeof chunk !== 'string' && !state.objectMode && Object.getPrototypeOf(chunk) !== Buffer.prototype) { + chunk = _uint8ArrayToBuffer(chunk); + } + + if (addToFront) { + if (state.endEmitted) stream.emit('error', new Error('stream.unshift() after end event'));else addChunk(stream, state, chunk, true); + } else if (state.ended) { + stream.emit('error', new Error('stream.push() after EOF')); + } else { + state.reading = false; + if (state.decoder && !encoding) { + chunk = state.decoder.write(chunk); + if (state.objectMode || chunk.length !== 0) addChunk(stream, state, chunk, false);else maybeReadMore(stream, state); + } else { + addChunk(stream, state, chunk, false); + } + } + } else if (!addToFront) { + state.reading = false; + } + } + + return needMoreData(state); +} + +function addChunk(stream, state, chunk, addToFront) { + if (state.flowing && state.length === 0 && !state.sync) { + stream.emit('data', chunk); + stream.read(0); + } else { + // update the buffer info. + state.length += state.objectMode ? 1 : chunk.length; + if (addToFront) state.buffer.unshift(chunk);else state.buffer.push(chunk); + + if (state.needReadable) emitReadable(stream); + } + maybeReadMore(stream, state); +} + +function chunkInvalid(state, chunk) { + var er; + if (!_isUint8Array(chunk) && typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) { + er = new TypeError('Invalid non-string/buffer chunk'); + } + return er; +} + +// if it's past the high water mark, we can push in some more. +// Also, if we have no data yet, we can stand some +// more bytes. This is to work around cases where hwm=0, +// such as the repl. Also, if the push() triggered a +// readable event, and the user called read(largeNumber) such that +// needReadable was set, then we ought to push more, so that another +// 'readable' event will be triggered. +function needMoreData(state) { + return !state.ended && (state.needReadable || state.length < state.highWaterMark || state.length === 0); +} + +Readable.prototype.isPaused = function () { + return this._readableState.flowing === false; +}; + +// backwards compatibility. +Readable.prototype.setEncoding = function (enc) { + if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder; + this._readableState.decoder = new StringDecoder(enc); + this._readableState.encoding = enc; + return this; +}; + +// Don't raise the hwm > 8MB +var MAX_HWM = 0x800000; +function computeNewHighWaterMark(n) { + if (n >= MAX_HWM) { + n = MAX_HWM; + } else { + // Get the next highest power of 2 to prevent increasing hwm excessively in + // tiny amounts + n--; + n |= n >>> 1; + n |= n >>> 2; + n |= n >>> 4; + n |= n >>> 8; + n |= n >>> 16; + n++; + } + return n; +} + +// This function is designed to be inlinable, so please take care when making +// changes to the function body. +function howMuchToRead(n, state) { + if (n <= 0 || state.length === 0 && state.ended) return 0; + if (state.objectMode) return 1; + if (n !== n) { + // Only flow one buffer at a time + if (state.flowing && state.length) return state.buffer.head.data.length;else return state.length; + } + // If we're asking for more than the current hwm, then raise the hwm. + if (n > state.highWaterMark) state.highWaterMark = computeNewHighWaterMark(n); + if (n <= state.length) return n; + // Don't have enough + if (!state.ended) { + state.needReadable = true; + return 0; + } + return state.length; +} + +// you can override either this method, or the async _read(n) below. +Readable.prototype.read = function (n) { + debug('read', n); + n = parseInt(n, 10); + var state = this._readableState; + var nOrig = n; + + if (n !== 0) state.emittedReadable = false; + + // if we're doing read(0) to trigger a readable event, but we + // already have a bunch of data in the buffer, then just trigger + // the 'readable' event and move on. + if (n === 0 && state.needReadable && (state.length >= state.highWaterMark || state.ended)) { + debug('read: emitReadable', state.length, state.ended); + if (state.length === 0 && state.ended) endReadable(this);else emitReadable(this); + return null; + } + + n = howMuchToRead(n, state); + + // if we've ended, and we're now clear, then finish it up. + if (n === 0 && state.ended) { + if (state.length === 0) endReadable(this); + return null; + } + + // All the actual chunk generation logic needs to be + // *below* the call to _read. The reason is that in certain + // synthetic stream cases, such as passthrough streams, _read + // may be a completely synchronous operation which may change + // the state of the read buffer, providing enough data when + // before there was *not* enough. + // + // So, the steps are: + // 1. Figure out what the state of things will be after we do + // a read from the buffer. + // + // 2. If that resulting state will trigger a _read, then call _read. + // Note that this may be asynchronous, or synchronous. Yes, it is + // deeply ugly to write APIs this way, but that still doesn't mean + // that the Readable class should behave improperly, as streams are + // designed to be sync/async agnostic. + // Take note if the _read call is sync or async (ie, if the read call + // has returned yet), so that we know whether or not it's safe to emit + // 'readable' etc. + // + // 3. Actually pull the requested chunks out of the buffer and return. + + // if we need a readable event, then we need to do some reading. + var doRead = state.needReadable; + debug('need readable', doRead); + + // if we currently have less than the highWaterMark, then also read some + if (state.length === 0 || state.length - n < state.highWaterMark) { + doRead = true; + debug('length less than watermark', doRead); + } + + // however, if we've ended, then there's no point, and if we're already + // reading, then it's unnecessary. + if (state.ended || state.reading) { + doRead = false; + debug('reading or ended', doRead); + } else if (doRead) { + debug('do read'); + state.reading = true; + state.sync = true; + // if the length is currently zero, then we *need* a readable event. + if (state.length === 0) state.needReadable = true; + // call internal read method + this._read(state.highWaterMark); + state.sync = false; + // If _read pushed data synchronously, then `reading` will be false, + // and we need to re-evaluate how much data we can return to the user. + if (!state.reading) n = howMuchToRead(nOrig, state); + } + + var ret; + if (n > 0) ret = fromList(n, state);else ret = null; + + if (ret === null) { + state.needReadable = true; + n = 0; + } else { + state.length -= n; + } + + if (state.length === 0) { + // If we have nothing in the buffer, then we want to know + // as soon as we *do* get something into the buffer. + if (!state.ended) state.needReadable = true; + + // If we tried to read() past the EOF, then emit end on the next tick. + if (nOrig !== n && state.ended) endReadable(this); + } + + if (ret !== null) this.emit('data', ret); + + return ret; +}; + +function onEofChunk(stream, state) { + if (state.ended) return; + if (state.decoder) { + var chunk = state.decoder.end(); + if (chunk && chunk.length) { + state.buffer.push(chunk); + state.length += state.objectMode ? 1 : chunk.length; + } + } + state.ended = true; + + // emit 'readable' now to make sure it gets picked up. + emitReadable(stream); +} + +// Don't emit readable right away in sync mode, because this can trigger +// another read() call => stack overflow. This way, it might trigger +// a nextTick recursion warning, but that's not so bad. +function emitReadable(stream) { + var state = stream._readableState; + state.needReadable = false; + if (!state.emittedReadable) { + debug('emitReadable', state.flowing); + state.emittedReadable = true; + if (state.sync) processNextTick(emitReadable_, stream);else emitReadable_(stream); + } +} + +function emitReadable_(stream) { + debug('emit readable'); + stream.emit('readable'); + flow(stream); +} + +// at this point, the user has presumably seen the 'readable' event, +// and called read() to consume some data. that may have triggered +// in turn another _read(n) call, in which case reading = true if +// it's in progress. +// However, if we're not ended, or reading, and the length < hwm, +// then go ahead and try to read some more preemptively. +function maybeReadMore(stream, state) { + if (!state.readingMore) { + state.readingMore = true; + processNextTick(maybeReadMore_, stream, state); + } +} + +function maybeReadMore_(stream, state) { + var len = state.length; + while (!state.reading && !state.flowing && !state.ended && state.length < state.highWaterMark) { + debug('maybeReadMore read 0'); + stream.read(0); + if (len === state.length) + // didn't get any data, stop spinning. + break;else len = state.length; + } + state.readingMore = false; +} + +// abstract method. to be overridden in specific implementation classes. +// call cb(er, data) where data is <= n in length. +// for virtual (non-string, non-buffer) streams, "length" is somewhat +// arbitrary, and perhaps not very meaningful. +Readable.prototype._read = function (n) { + this.emit('error', new Error('_read() is not implemented')); +}; + +Readable.prototype.pipe = function (dest, pipeOpts) { + var src = this; + var state = this._readableState; + + switch (state.pipesCount) { + case 0: + state.pipes = dest; + break; + case 1: + state.pipes = [state.pipes, dest]; + break; + default: + state.pipes.push(dest); + break; + } + state.pipesCount += 1; + debug('pipe count=%d opts=%j', state.pipesCount, pipeOpts); + + var doEnd = (!pipeOpts || pipeOpts.end !== false) && dest !== process.stdout && dest !== process.stderr; + + var endFn = doEnd ? onend : unpipe; + if (state.endEmitted) processNextTick(endFn);else src.once('end', endFn); + + dest.on('unpipe', onunpipe); + function onunpipe(readable, unpipeInfo) { + debug('onunpipe'); + if (readable === src) { + if (unpipeInfo && unpipeInfo.hasUnpiped === false) { + unpipeInfo.hasUnpiped = true; + cleanup(); + } + } + } + + function onend() { + debug('onend'); + dest.end(); + } + + // when the dest drains, it reduces the awaitDrain counter + // on the source. This would be more elegant with a .once() + // handler in flow(), but adding and removing repeatedly is + // too slow. + var ondrain = pipeOnDrain(src); + dest.on('drain', ondrain); + + var cleanedUp = false; + function cleanup() { + debug('cleanup'); + // cleanup event handlers once the pipe is broken + dest.removeListener('close', onclose); + dest.removeListener('finish', onfinish); + dest.removeListener('drain', ondrain); + dest.removeListener('error', onerror); + dest.removeListener('unpipe', onunpipe); + src.removeListener('end', onend); + src.removeListener('end', unpipe); + src.removeListener('data', ondata); + + cleanedUp = true; + + // if the reader is waiting for a drain event from this + // specific writer, then it would cause it to never start + // flowing again. + // So, if this is awaiting a drain, then we just call it now. + // If we don't know, then assume that we are waiting for one. + if (state.awaitDrain && (!dest._writableState || dest._writableState.needDrain)) ondrain(); + } + + // If the user pushes more data while we're writing to dest then we'll end up + // in ondata again. However, we only want to increase awaitDrain once because + // dest will only emit one 'drain' event for the multiple writes. + // => Introduce a guard on increasing awaitDrain. + var increasedAwaitDrain = false; + src.on('data', ondata); + function ondata(chunk) { + debug('ondata'); + increasedAwaitDrain = false; + var ret = dest.write(chunk); + if (false === ret && !increasedAwaitDrain) { + // If the user unpiped during `dest.write()`, it is possible + // to get stuck in a permanently paused state if that write + // also returned false. + // => Check whether `dest` is still a piping destination. + if ((state.pipesCount === 1 && state.pipes === dest || state.pipesCount > 1 && indexOf(state.pipes, dest) !== -1) && !cleanedUp) { + debug('false write response, pause', src._readableState.awaitDrain); + src._readableState.awaitDrain++; + increasedAwaitDrain = true; + } + src.pause(); + } + } + + // if the dest has an error, then stop piping into it. + // however, don't suppress the throwing behavior for this. + function onerror(er) { + debug('onerror', er); + unpipe(); + dest.removeListener('error', onerror); + if (EElistenerCount(dest, 'error') === 0) dest.emit('error', er); + } + + // Make sure our error handler is attached before userland ones. + prependListener(dest, 'error', onerror); + + // Both close and finish should trigger unpipe, but only once. + function onclose() { + dest.removeListener('finish', onfinish); + unpipe(); + } + dest.once('close', onclose); + function onfinish() { + debug('onfinish'); + dest.removeListener('close', onclose); + unpipe(); + } + dest.once('finish', onfinish); + + function unpipe() { + debug('unpipe'); + src.unpipe(dest); + } + + // tell the dest that it's being piped to + dest.emit('pipe', src); + + // start the flow if it hasn't been started already. + if (!state.flowing) { + debug('pipe resume'); + src.resume(); + } + + return dest; +}; + +function pipeOnDrain(src) { + return function () { + var state = src._readableState; + debug('pipeOnDrain', state.awaitDrain); + if (state.awaitDrain) state.awaitDrain--; + if (state.awaitDrain === 0 && EElistenerCount(src, 'data')) { + state.flowing = true; + flow(src); + } + }; +} + +Readable.prototype.unpipe = function (dest) { + var state = this._readableState; + var unpipeInfo = { hasUnpiped: false }; + + // if we're not piping anywhere, then do nothing. + if (state.pipesCount === 0) return this; + + // just one destination. most common case. + if (state.pipesCount === 1) { + // passed in one, but it's not the right one. + if (dest && dest !== state.pipes) return this; + + if (!dest) dest = state.pipes; + + // got a match. + state.pipes = null; + state.pipesCount = 0; + state.flowing = false; + if (dest) dest.emit('unpipe', this, unpipeInfo); + return this; + } + + // slow case. multiple pipe destinations. + + if (!dest) { + // remove all. + var dests = state.pipes; + var len = state.pipesCount; + state.pipes = null; + state.pipesCount = 0; + state.flowing = false; + + for (var i = 0; i < len; i++) { + dests[i].emit('unpipe', this, unpipeInfo); + }return this; + } + + // try to find the right one. + var index = indexOf(state.pipes, dest); + if (index === -1) return this; + + state.pipes.splice(index, 1); + state.pipesCount -= 1; + if (state.pipesCount === 1) state.pipes = state.pipes[0]; + + dest.emit('unpipe', this, unpipeInfo); + + return this; +}; + +// set up data events if they are asked for +// Ensure readable listeners eventually get something +Readable.prototype.on = function (ev, fn) { + var res = Stream.prototype.on.call(this, ev, fn); + + if (ev === 'data') { + // Start flowing on next tick if stream isn't explicitly paused + if (this._readableState.flowing !== false) this.resume(); + } else if (ev === 'readable') { + var state = this._readableState; + if (!state.endEmitted && !state.readableListening) { + state.readableListening = state.needReadable = true; + state.emittedReadable = false; + if (!state.reading) { + processNextTick(nReadingNextTick, this); + } else if (state.length) { + emitReadable(this); + } + } + } + + return res; +}; +Readable.prototype.addListener = Readable.prototype.on; + +function nReadingNextTick(self) { + debug('readable nexttick read 0'); + self.read(0); +} + +// pause() and resume() are remnants of the legacy readable stream API +// If the user uses them, then switch into old mode. +Readable.prototype.resume = function () { + var state = this._readableState; + if (!state.flowing) { + debug('resume'); + state.flowing = true; + resume(this, state); + } + return this; +}; + +function resume(stream, state) { + if (!state.resumeScheduled) { + state.resumeScheduled = true; + processNextTick(resume_, stream, state); + } +} + +function resume_(stream, state) { + if (!state.reading) { + debug('resume read 0'); + stream.read(0); + } + + state.resumeScheduled = false; + state.awaitDrain = 0; + stream.emit('resume'); + flow(stream); + if (state.flowing && !state.reading) stream.read(0); +} + +Readable.prototype.pause = function () { + debug('call pause flowing=%j', this._readableState.flowing); + if (false !== this._readableState.flowing) { + debug('pause'); + this._readableState.flowing = false; + this.emit('pause'); + } + return this; +}; + +function flow(stream) { + var state = stream._readableState; + debug('flow', state.flowing); + while (state.flowing && stream.read() !== null) {} +} + +// wrap an old-style stream as the async data source. +// This is *not* part of the readable stream interface. +// It is an ugly unfortunate mess of history. +Readable.prototype.wrap = function (stream) { + var state = this._readableState; + var paused = false; + + var self = this; + stream.on('end', function () { + debug('wrapped end'); + if (state.decoder && !state.ended) { + var chunk = state.decoder.end(); + if (chunk && chunk.length) self.push(chunk); + } + + self.push(null); + }); + + stream.on('data', function (chunk) { + debug('wrapped data'); + if (state.decoder) chunk = state.decoder.write(chunk); + + // don't skip over falsy values in objectMode + if (state.objectMode && (chunk === null || chunk === undefined)) return;else if (!state.objectMode && (!chunk || !chunk.length)) return; + + var ret = self.push(chunk); + if (!ret) { + paused = true; + stream.pause(); + } + }); + + // proxy all the other methods. + // important when wrapping filters and duplexes. + for (var i in stream) { + if (this[i] === undefined && typeof stream[i] === 'function') { + this[i] = function (method) { + return function () { + return stream[method].apply(stream, arguments); + }; + }(i); + } + } + + // proxy certain important events. + for (var n = 0; n < kProxyEvents.length; n++) { + stream.on(kProxyEvents[n], self.emit.bind(self, kProxyEvents[n])); + } + + // when we try to consume some more bytes, simply unpause the + // underlying stream. + self._read = function (n) { + debug('wrapped _read', n); + if (paused) { + paused = false; + stream.resume(); + } + }; + + return self; +}; + +// exposed for testing purposes only. +Readable._fromList = fromList; + +// Pluck off n bytes from an array of buffers. +// Length is the combined lengths of all the buffers in the list. +// This function is designed to be inlinable, so please take care when making +// changes to the function body. +function fromList(n, state) { + // nothing buffered + if (state.length === 0) return null; + + var ret; + if (state.objectMode) ret = state.buffer.shift();else if (!n || n >= state.length) { + // read it all, truncate the list + if (state.decoder) ret = state.buffer.join('');else if (state.buffer.length === 1) ret = state.buffer.head.data;else ret = state.buffer.concat(state.length); + state.buffer.clear(); + } else { + // read part of list + ret = fromListPartial(n, state.buffer, state.decoder); + } + + return ret; +} + +// Extracts only enough buffered data to satisfy the amount requested. +// This function is designed to be inlinable, so please take care when making +// changes to the function body. +function fromListPartial(n, list, hasStrings) { + var ret; + if (n < list.head.data.length) { + // slice is the same for buffers and strings + ret = list.head.data.slice(0, n); + list.head.data = list.head.data.slice(n); + } else if (n === list.head.data.length) { + // first chunk is a perfect match + ret = list.shift(); + } else { + // result spans more than one buffer + ret = hasStrings ? copyFromBufferString(n, list) : copyFromBuffer(n, list); + } + return ret; +} + +// Copies a specified amount of characters from the list of buffered data +// chunks. +// This function is designed to be inlinable, so please take care when making +// changes to the function body. +function copyFromBufferString(n, list) { + var p = list.head; + var c = 1; + var ret = p.data; + n -= ret.length; + while (p = p.next) { + var str = p.data; + var nb = n > str.length ? str.length : n; + if (nb === str.length) ret += str;else ret += str.slice(0, n); + n -= nb; + if (n === 0) { + if (nb === str.length) { + ++c; + if (p.next) list.head = p.next;else list.head = list.tail = null; + } else { + list.head = p; + p.data = str.slice(nb); + } + break; + } + ++c; + } + list.length -= c; + return ret; +} + +// Copies a specified amount of bytes from the list of buffered data chunks. +// This function is designed to be inlinable, so please take care when making +// changes to the function body. +function copyFromBuffer(n, list) { + var ret = Buffer.allocUnsafe(n); + var p = list.head; + var c = 1; + p.data.copy(ret); + n -= p.data.length; + while (p = p.next) { + var buf = p.data; + var nb = n > buf.length ? buf.length : n; + buf.copy(ret, ret.length - n, 0, nb); + n -= nb; + if (n === 0) { + if (nb === buf.length) { + ++c; + if (p.next) list.head = p.next;else list.head = list.tail = null; + } else { + list.head = p; + p.data = buf.slice(nb); + } + break; + } + ++c; + } + list.length -= c; + return ret; +} + +function endReadable(stream) { + var state = stream._readableState; + + // If we get here before consuming all the bytes, then that is a + // bug in node. Should never happen. + if (state.length > 0) throw new Error('"endReadable()" called on non-empty stream'); + + if (!state.endEmitted) { + state.ended = true; + processNextTick(endReadableNT, state, stream); + } +} + +function endReadableNT(state, stream) { + // Check that we didn't get one last unshift. + if (!state.endEmitted && state.length === 0) { + state.endEmitted = true; + stream.readable = false; + stream.emit('end'); + } +} + +function forEach(xs, f) { + for (var i = 0, l = xs.length; i < l; i++) { + f(xs[i], i); + } +} + +function indexOf(xs, x) { + for (var i = 0, l = xs.length; i < l; i++) { + if (xs[i] === x) return i; + } + return -1; +} +}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) +},{"./_stream_duplex":149,"./internal/streams/BufferList":154,"./internal/streams/destroy":155,"./internal/streams/stream":156,"_process":140,"core-util-is":71,"events":105,"inherits":123,"isarray":125,"process-nextick-args":139,"safe-buffer":162,"string_decoder/":172,"util":42}],152:[function(require,module,exports){ +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +// a transform stream is a readable/writable stream where you do +// something with the data. Sometimes it's called a "filter", +// but that's not a great name for it, since that implies a thing where +// some bits pass through, and others are simply ignored. (That would +// be a valid example of a transform, of course.) +// +// While the output is causally related to the input, it's not a +// necessarily symmetric or synchronous transformation. For example, +// a zlib stream might take multiple plain-text writes(), and then +// emit a single compressed chunk some time in the future. +// +// Here's how this works: +// +// The Transform stream has all the aspects of the readable and writable +// stream classes. When you write(chunk), that calls _write(chunk,cb) +// internally, and returns false if there's a lot of pending writes +// buffered up. When you call read(), that calls _read(n) until +// there's enough pending readable data buffered up. +// +// In a transform stream, the written data is placed in a buffer. When +// _read(n) is called, it transforms the queued up data, calling the +// buffered _write cb's as it consumes chunks. If consuming a single +// written chunk would result in multiple output chunks, then the first +// outputted bit calls the readcb, and subsequent chunks just go into +// the read buffer, and will cause it to emit 'readable' if necessary. +// +// This way, back-pressure is actually determined by the reading side, +// since _read has to be called to start processing a new chunk. However, +// a pathological inflate type of transform can cause excessive buffering +// here. For example, imagine a stream where every byte of input is +// interpreted as an integer from 0-255, and then results in that many +// bytes of output. Writing the 4 bytes {ff,ff,ff,ff} would result in +// 1kb of data being output. In this case, you could write a very small +// amount of input, and end up with a very large amount of output. In +// such a pathological inflating mechanism, there'd be no way to tell +// the system to stop doing the transform. A single 4MB write could +// cause the system to run out of memory. +// +// However, even in such a pathological case, only a single written chunk +// would be consumed, and then the rest would wait (un-transformed) until +// the results of the previous transformed chunk were consumed. + +'use strict'; + +module.exports = Transform; + +var Duplex = require('./_stream_duplex'); + +/**/ +var util = require('core-util-is'); +util.inherits = require('inherits'); +/**/ + +util.inherits(Transform, Duplex); + +function TransformState(stream) { + this.afterTransform = function (er, data) { + return afterTransform(stream, er, data); + }; + + this.needTransform = false; + this.transforming = false; + this.writecb = null; + this.writechunk = null; + this.writeencoding = null; +} + +function afterTransform(stream, er, data) { + var ts = stream._transformState; + ts.transforming = false; + + var cb = ts.writecb; + + if (!cb) { + return stream.emit('error', new Error('write callback called multiple times')); + } + + ts.writechunk = null; + ts.writecb = null; + + if (data !== null && data !== undefined) stream.push(data); + + cb(er); + + var rs = stream._readableState; + rs.reading = false; + if (rs.needReadable || rs.length < rs.highWaterMark) { + stream._read(rs.highWaterMark); + } +} + +function Transform(options) { + if (!(this instanceof Transform)) return new Transform(options); + + Duplex.call(this, options); + + this._transformState = new TransformState(this); + + var stream = this; + + // start out asking for a readable event once data is transformed. + this._readableState.needReadable = true; + + // we have implemented the _read method, and done the other things + // that Readable wants before the first _read call, so unset the + // sync guard flag. + this._readableState.sync = false; + + if (options) { + if (typeof options.transform === 'function') this._transform = options.transform; + + if (typeof options.flush === 'function') this._flush = options.flush; + } + + // When the writable side finishes, then flush out anything remaining. + this.once('prefinish', function () { + if (typeof this._flush === 'function') this._flush(function (er, data) { + done(stream, er, data); + });else done(stream); + }); +} + +Transform.prototype.push = function (chunk, encoding) { + this._transformState.needTransform = false; + return Duplex.prototype.push.call(this, chunk, encoding); +}; + +// This is the part where you do stuff! +// override this function in implementation classes. +// 'chunk' is an input chunk. +// +// Call `push(newChunk)` to pass along transformed output +// to the readable side. You may call 'push' zero or more times. +// +// Call `cb(err)` when you are done with this chunk. If you pass +// an error, then that'll put the hurt on the whole operation. If you +// never call cb(), then you'll never get another chunk. +Transform.prototype._transform = function (chunk, encoding, cb) { + throw new Error('_transform() is not implemented'); +}; + +Transform.prototype._write = function (chunk, encoding, cb) { + var ts = this._transformState; + ts.writecb = cb; + ts.writechunk = chunk; + ts.writeencoding = encoding; + if (!ts.transforming) { + var rs = this._readableState; + if (ts.needTransform || rs.needReadable || rs.length < rs.highWaterMark) this._read(rs.highWaterMark); + } +}; + +// Doesn't matter what the args are here. +// _transform does all the work. +// That we got here means that the readable side wants more data. +Transform.prototype._read = function (n) { + var ts = this._transformState; + + if (ts.writechunk !== null && ts.writecb && !ts.transforming) { + ts.transforming = true; + this._transform(ts.writechunk, ts.writeencoding, ts.afterTransform); + } else { + // mark that we need a transform, so that any data that comes in + // will get processed, now that we've asked for it. + ts.needTransform = true; + } +}; + +Transform.prototype._destroy = function (err, cb) { + var _this = this; + + Duplex.prototype._destroy.call(this, err, function (err2) { + cb(err2); + _this.emit('close'); + }); +}; + +function done(stream, er, data) { + if (er) return stream.emit('error', er); + + if (data !== null && data !== undefined) stream.push(data); + + // if there's nothing in the write buffer, then that means + // that nothing more will ever be provided + var ws = stream._writableState; + var ts = stream._transformState; + + if (ws.length) throw new Error('Calling transform done when ws.length != 0'); + + if (ts.transforming) throw new Error('Calling transform done when still transforming'); + + return stream.push(null); +} +},{"./_stream_duplex":149,"core-util-is":71,"inherits":123}],153:[function(require,module,exports){ +(function (process,global){ +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +// A bit simpler than readable streams. +// Implement an async ._write(chunk, encoding, cb), and it'll handle all +// the drain event emission and buffering. + +'use strict'; + +/**/ + +var processNextTick = require('process-nextick-args'); +/**/ + +module.exports = Writable; + +/* */ +function WriteReq(chunk, encoding, cb) { + this.chunk = chunk; + this.encoding = encoding; + this.callback = cb; + this.next = null; +} + +// It seems a linked list but it is not +// there will be only 2 of these for each stream +function CorkedRequest(state) { + var _this = this; + + this.next = null; + this.entry = null; + this.finish = function () { + onCorkedFinish(_this, state); + }; +} +/* */ + +/**/ +var asyncWrite = !process.browser && ['v0.10', 'v0.9.'].indexOf(process.version.slice(0, 5)) > -1 ? setImmediate : processNextTick; +/**/ + +/**/ +var Duplex; +/**/ + +Writable.WritableState = WritableState; + +/**/ +var util = require('core-util-is'); +util.inherits = require('inherits'); +/**/ + +/**/ +var internalUtil = { + deprecate: require('util-deprecate') +}; +/**/ + +/**/ +var Stream = require('./internal/streams/stream'); +/**/ + +/**/ +var Buffer = require('safe-buffer').Buffer; +var OurUint8Array = global.Uint8Array || function () {}; +function _uint8ArrayToBuffer(chunk) { + return Buffer.from(chunk); +} +function _isUint8Array(obj) { + return Buffer.isBuffer(obj) || obj instanceof OurUint8Array; +} +/**/ + +var destroyImpl = require('./internal/streams/destroy'); + +util.inherits(Writable, Stream); + +function nop() {} + +function WritableState(options, stream) { + Duplex = Duplex || require('./_stream_duplex'); + + options = options || {}; + + // object stream flag to indicate whether or not this stream + // contains buffers or objects. + this.objectMode = !!options.objectMode; + + if (stream instanceof Duplex) this.objectMode = this.objectMode || !!options.writableObjectMode; + + // the point at which write() starts returning false + // Note: 0 is a valid value, means that we always return false if + // the entire buffer is not flushed immediately on write() + var hwm = options.highWaterMark; + var defaultHwm = this.objectMode ? 16 : 16 * 1024; + this.highWaterMark = hwm || hwm === 0 ? hwm : defaultHwm; + + // cast to ints. + this.highWaterMark = Math.floor(this.highWaterMark); + + // if _final has been called + this.finalCalled = false; + + // drain event flag. + this.needDrain = false; + // at the start of calling end() + this.ending = false; + // when end() has been called, and returned + this.ended = false; + // when 'finish' is emitted + this.finished = false; + + // has it been destroyed + this.destroyed = false; + + // should we decode strings into buffers before passing to _write? + // this is here so that some node-core streams can optimize string + // handling at a lower level. + var noDecode = options.decodeStrings === false; + this.decodeStrings = !noDecode; + + // Crypto is kind of old and crusty. Historically, its default string + // encoding is 'binary' so we have to make this configurable. + // Everything else in the universe uses 'utf8', though. + this.defaultEncoding = options.defaultEncoding || 'utf8'; + + // not an actual buffer we keep track of, but a measurement + // of how much we're waiting to get pushed to some underlying + // socket or file. + this.length = 0; + + // a flag to see when we're in the middle of a write. + this.writing = false; + + // when true all writes will be buffered until .uncork() call + this.corked = 0; + + // a flag to be able to tell if the onwrite cb is called immediately, + // or on a later tick. We set this to true at first, because any + // actions that shouldn't happen until "later" should generally also + // not happen before the first write call. + this.sync = true; + + // a flag to know if we're processing previously buffered items, which + // may call the _write() callback in the same tick, so that we don't + // end up in an overlapped onwrite situation. + this.bufferProcessing = false; + + // the callback that's passed to _write(chunk,cb) + this.onwrite = function (er) { + onwrite(stream, er); + }; + + // the callback that the user supplies to write(chunk,encoding,cb) + this.writecb = null; + + // the amount that is being written when _write is called. + this.writelen = 0; + + this.bufferedRequest = null; + this.lastBufferedRequest = null; + + // number of pending user-supplied write callbacks + // this must be 0 before 'finish' can be emitted + this.pendingcb = 0; + + // emit prefinish if the only thing we're waiting for is _write cbs + // This is relevant for synchronous Transform streams + this.prefinished = false; + + // True if the error was already emitted and should not be thrown again + this.errorEmitted = false; + + // count buffered requests + this.bufferedRequestCount = 0; + + // allocate the first CorkedRequest, there is always + // one allocated and free to use, and we maintain at most two + this.corkedRequestsFree = new CorkedRequest(this); +} + +WritableState.prototype.getBuffer = function getBuffer() { + var current = this.bufferedRequest; + var out = []; + while (current) { + out.push(current); + current = current.next; + } + return out; +}; + +(function () { + try { + Object.defineProperty(WritableState.prototype, 'buffer', { + get: internalUtil.deprecate(function () { + return this.getBuffer(); + }, '_writableState.buffer is deprecated. Use _writableState.getBuffer ' + 'instead.', 'DEP0003') + }); + } catch (_) {} +})(); + +// Test _writableState for inheritance to account for Duplex streams, +// whose prototype chain only points to Readable. +var realHasInstance; +if (typeof Symbol === 'function' && Symbol.hasInstance && typeof Function.prototype[Symbol.hasInstance] === 'function') { + realHasInstance = Function.prototype[Symbol.hasInstance]; + Object.defineProperty(Writable, Symbol.hasInstance, { + value: function (object) { + if (realHasInstance.call(this, object)) return true; + + return object && object._writableState instanceof WritableState; + } + }); +} else { + realHasInstance = function (object) { + return object instanceof this; + }; +} + +function Writable(options) { + Duplex = Duplex || require('./_stream_duplex'); + + // Writable ctor is applied to Duplexes, too. + // `realHasInstance` is necessary because using plain `instanceof` + // would return false, as no `_writableState` property is attached. + + // Trying to use the custom `instanceof` for Writable here will also break the + // Node.js LazyTransform implementation, which has a non-trivial getter for + // `_writableState` that would lead to infinite recursion. + if (!realHasInstance.call(Writable, this) && !(this instanceof Duplex)) { + return new Writable(options); + } + + this._writableState = new WritableState(options, this); + + // legacy. + this.writable = true; + + if (options) { + if (typeof options.write === 'function') this._write = options.write; + + if (typeof options.writev === 'function') this._writev = options.writev; + + if (typeof options.destroy === 'function') this._destroy = options.destroy; + + if (typeof options.final === 'function') this._final = options.final; + } + + Stream.call(this); +} + +// Otherwise people can pipe Writable streams, which is just wrong. +Writable.prototype.pipe = function () { + this.emit('error', new Error('Cannot pipe, not readable')); +}; + +function writeAfterEnd(stream, cb) { + var er = new Error('write after end'); + // TODO: defer error events consistently everywhere, not just the cb + stream.emit('error', er); + processNextTick(cb, er); +} + +// Checks that a user-supplied chunk is valid, especially for the particular +// mode the stream is in. Currently this means that `null` is never accepted +// and undefined/non-string values are only allowed in object mode. +function validChunk(stream, state, chunk, cb) { + var valid = true; + var er = false; + + if (chunk === null) { + er = new TypeError('May not write null values to stream'); + } else if (typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) { + er = new TypeError('Invalid non-string/buffer chunk'); + } + if (er) { + stream.emit('error', er); + processNextTick(cb, er); + valid = false; + } + return valid; +} + +Writable.prototype.write = function (chunk, encoding, cb) { + var state = this._writableState; + var ret = false; + var isBuf = _isUint8Array(chunk) && !state.objectMode; + + if (isBuf && !Buffer.isBuffer(chunk)) { + chunk = _uint8ArrayToBuffer(chunk); + } + + if (typeof encoding === 'function') { + cb = encoding; + encoding = null; + } + + if (isBuf) encoding = 'buffer';else if (!encoding) encoding = state.defaultEncoding; + + if (typeof cb !== 'function') cb = nop; + + if (state.ended) writeAfterEnd(this, cb);else if (isBuf || validChunk(this, state, chunk, cb)) { + state.pendingcb++; + ret = writeOrBuffer(this, state, isBuf, chunk, encoding, cb); + } + + return ret; +}; + +Writable.prototype.cork = function () { + var state = this._writableState; + + state.corked++; +}; + +Writable.prototype.uncork = function () { + var state = this._writableState; + + if (state.corked) { + state.corked--; + + if (!state.writing && !state.corked && !state.finished && !state.bufferProcessing && state.bufferedRequest) clearBuffer(this, state); + } +}; + +Writable.prototype.setDefaultEncoding = function setDefaultEncoding(encoding) { + // node::ParseEncoding() requires lower case. + if (typeof encoding === 'string') encoding = encoding.toLowerCase(); + if (!(['hex', 'utf8', 'utf-8', 'ascii', 'binary', 'base64', 'ucs2', 'ucs-2', 'utf16le', 'utf-16le', 'raw'].indexOf((encoding + '').toLowerCase()) > -1)) throw new TypeError('Unknown encoding: ' + encoding); + this._writableState.defaultEncoding = encoding; + return this; +}; + +function decodeChunk(state, chunk, encoding) { + if (!state.objectMode && state.decodeStrings !== false && typeof chunk === 'string') { + chunk = Buffer.from(chunk, encoding); + } + return chunk; +} + +// if we're already writing something, then just put this +// in the queue, and wait our turn. Otherwise, call _write +// If we return false, then we need a drain event, so set that flag. +function writeOrBuffer(stream, state, isBuf, chunk, encoding, cb) { + if (!isBuf) { + var newChunk = decodeChunk(state, chunk, encoding); + if (chunk !== newChunk) { + isBuf = true; + encoding = 'buffer'; + chunk = newChunk; + } + } + var len = state.objectMode ? 1 : chunk.length; + + state.length += len; + + var ret = state.length < state.highWaterMark; + // we must ensure that previous needDrain will not be reset to false. + if (!ret) state.needDrain = true; + + if (state.writing || state.corked) { + var last = state.lastBufferedRequest; + state.lastBufferedRequest = { + chunk: chunk, + encoding: encoding, + isBuf: isBuf, + callback: cb, + next: null + }; + if (last) { + last.next = state.lastBufferedRequest; + } else { + state.bufferedRequest = state.lastBufferedRequest; + } + state.bufferedRequestCount += 1; + } else { + doWrite(stream, state, false, len, chunk, encoding, cb); + } + + return ret; +} + +function doWrite(stream, state, writev, len, chunk, encoding, cb) { + state.writelen = len; + state.writecb = cb; + state.writing = true; + state.sync = true; + if (writev) stream._writev(chunk, state.onwrite);else stream._write(chunk, encoding, state.onwrite); + state.sync = false; +} + +function onwriteError(stream, state, sync, er, cb) { + --state.pendingcb; + + if (sync) { + // defer the callback if we are being called synchronously + // to avoid piling up things on the stack + processNextTick(cb, er); + // this can emit finish, and it will always happen + // after error + processNextTick(finishMaybe, stream, state); + stream._writableState.errorEmitted = true; + stream.emit('error', er); + } else { + // the caller expect this to happen before if + // it is async + cb(er); + stream._writableState.errorEmitted = true; + stream.emit('error', er); + // this can emit finish, but finish must + // always follow error + finishMaybe(stream, state); + } +} + +function onwriteStateUpdate(state) { + state.writing = false; + state.writecb = null; + state.length -= state.writelen; + state.writelen = 0; +} + +function onwrite(stream, er) { + var state = stream._writableState; + var sync = state.sync; + var cb = state.writecb; + + onwriteStateUpdate(state); + + if (er) onwriteError(stream, state, sync, er, cb);else { + // Check if we're actually ready to finish, but don't emit yet + var finished = needFinish(state); + + if (!finished && !state.corked && !state.bufferProcessing && state.bufferedRequest) { + clearBuffer(stream, state); + } + + if (sync) { + /**/ + asyncWrite(afterWrite, stream, state, finished, cb); + /**/ + } else { + afterWrite(stream, state, finished, cb); + } + } +} + +function afterWrite(stream, state, finished, cb) { + if (!finished) onwriteDrain(stream, state); + state.pendingcb--; + cb(); + finishMaybe(stream, state); +} + +// Must force callback to be called on nextTick, so that we don't +// emit 'drain' before the write() consumer gets the 'false' return +// value, and has a chance to attach a 'drain' listener. +function onwriteDrain(stream, state) { + if (state.length === 0 && state.needDrain) { + state.needDrain = false; + stream.emit('drain'); + } +} + +// if there's something in the buffer waiting, then process it +function clearBuffer(stream, state) { + state.bufferProcessing = true; + var entry = state.bufferedRequest; + + if (stream._writev && entry && entry.next) { + // Fast case, write everything using _writev() + var l = state.bufferedRequestCount; + var buffer = new Array(l); + var holder = state.corkedRequestsFree; + holder.entry = entry; + + var count = 0; + var allBuffers = true; + while (entry) { + buffer[count] = entry; + if (!entry.isBuf) allBuffers = false; + entry = entry.next; + count += 1; + } + buffer.allBuffers = allBuffers; + + doWrite(stream, state, true, state.length, buffer, '', holder.finish); + + // doWrite is almost always async, defer these to save a bit of time + // as the hot path ends with doWrite + state.pendingcb++; + state.lastBufferedRequest = null; + if (holder.next) { + state.corkedRequestsFree = holder.next; + holder.next = null; + } else { + state.corkedRequestsFree = new CorkedRequest(state); + } + } else { + // Slow case, write chunks one-by-one + while (entry) { + var chunk = entry.chunk; + var encoding = entry.encoding; + var cb = entry.callback; + var len = state.objectMode ? 1 : chunk.length; + + doWrite(stream, state, false, len, chunk, encoding, cb); + entry = entry.next; + // if we didn't call the onwrite immediately, then + // it means that we need to wait until it does. + // also, that means that the chunk and cb are currently + // being processed, so move the buffer counter past them. + if (state.writing) { + break; + } + } + + if (entry === null) state.lastBufferedRequest = null; + } + + state.bufferedRequestCount = 0; + state.bufferedRequest = entry; + state.bufferProcessing = false; +} + +Writable.prototype._write = function (chunk, encoding, cb) { + cb(new Error('_write() is not implemented')); +}; + +Writable.prototype._writev = null; + +Writable.prototype.end = function (chunk, encoding, cb) { + var state = this._writableState; + + if (typeof chunk === 'function') { + cb = chunk; + chunk = null; + encoding = null; + } else if (typeof encoding === 'function') { + cb = encoding; + encoding = null; + } + + if (chunk !== null && chunk !== undefined) this.write(chunk, encoding); + + // .end() fully uncorks + if (state.corked) { + state.corked = 1; + this.uncork(); + } + + // ignore unnecessary end() calls. + if (!state.ending && !state.finished) endWritable(this, state, cb); +}; + +function needFinish(state) { + return state.ending && state.length === 0 && state.bufferedRequest === null && !state.finished && !state.writing; +} +function callFinal(stream, state) { + stream._final(function (err) { + state.pendingcb--; + if (err) { + stream.emit('error', err); + } + state.prefinished = true; + stream.emit('prefinish'); + finishMaybe(stream, state); + }); +} +function prefinish(stream, state) { + if (!state.prefinished && !state.finalCalled) { + if (typeof stream._final === 'function') { + state.pendingcb++; + state.finalCalled = true; + processNextTick(callFinal, stream, state); + } else { + state.prefinished = true; + stream.emit('prefinish'); + } + } +} + +function finishMaybe(stream, state) { + var need = needFinish(state); + if (need) { + prefinish(stream, state); + if (state.pendingcb === 0) { + state.finished = true; + stream.emit('finish'); + } + } + return need; +} + +function endWritable(stream, state, cb) { + state.ending = true; + finishMaybe(stream, state); + if (cb) { + if (state.finished) processNextTick(cb);else stream.once('finish', cb); + } + state.ended = true; + stream.writable = false; +} + +function onCorkedFinish(corkReq, state, err) { + var entry = corkReq.entry; + corkReq.entry = null; + while (entry) { + var cb = entry.callback; + state.pendingcb--; + cb(err); + entry = entry.next; + } + if (state.corkedRequestsFree) { + state.corkedRequestsFree.next = corkReq; + } else { + state.corkedRequestsFree = corkReq; + } +} + +Object.defineProperty(Writable.prototype, 'destroyed', { + get: function () { + if (this._writableState === undefined) { + return false; + } + return this._writableState.destroyed; + }, + set: function (value) { + // we ignore the value if the stream + // has not been initialized yet + if (!this._writableState) { + return; + } + + // backward compatibility, the user is explicitly + // managing destroyed + this._writableState.destroyed = value; + } +}); + +Writable.prototype.destroy = destroyImpl.destroy; +Writable.prototype._undestroy = destroyImpl.undestroy; +Writable.prototype._destroy = function (err, cb) { + this.end(); + cb(err); +}; +}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) +},{"./_stream_duplex":149,"./internal/streams/destroy":155,"./internal/streams/stream":156,"_process":140,"core-util-is":71,"inherits":123,"process-nextick-args":139,"safe-buffer":162,"util-deprecate":173}],154:[function(require,module,exports){ +'use strict'; + +/**/ + +function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } + +var Buffer = require('safe-buffer').Buffer; +/**/ + +function copyBuffer(src, target, offset) { + src.copy(target, offset); +} + +module.exports = function () { + function BufferList() { + _classCallCheck(this, BufferList); + + this.head = null; + this.tail = null; + this.length = 0; + } + + BufferList.prototype.push = function push(v) { + var entry = { data: v, next: null }; + if (this.length > 0) this.tail.next = entry;else this.head = entry; + this.tail = entry; + ++this.length; + }; + + BufferList.prototype.unshift = function unshift(v) { + var entry = { data: v, next: this.head }; + if (this.length === 0) this.tail = entry; + this.head = entry; + ++this.length; + }; + + BufferList.prototype.shift = function shift() { + if (this.length === 0) return; + var ret = this.head.data; + if (this.length === 1) this.head = this.tail = null;else this.head = this.head.next; + --this.length; + return ret; + }; + + BufferList.prototype.clear = function clear() { + this.head = this.tail = null; + this.length = 0; + }; + + BufferList.prototype.join = function join(s) { + if (this.length === 0) return ''; + var p = this.head; + var ret = '' + p.data; + while (p = p.next) { + ret += s + p.data; + }return ret; + }; + + BufferList.prototype.concat = function concat(n) { + if (this.length === 0) return Buffer.alloc(0); + if (this.length === 1) return this.head.data; + var ret = Buffer.allocUnsafe(n >>> 0); + var p = this.head; + var i = 0; + while (p) { + copyBuffer(p.data, ret, i); + i += p.data.length; + p = p.next; + } + return ret; + }; + + return BufferList; +}(); +},{"safe-buffer":162}],155:[function(require,module,exports){ +'use strict'; + +/**/ + +var processNextTick = require('process-nextick-args'); +/**/ + +// undocumented cb() API, needed for core, not for public API +function destroy(err, cb) { + var _this = this; + + var readableDestroyed = this._readableState && this._readableState.destroyed; + var writableDestroyed = this._writableState && this._writableState.destroyed; + + if (readableDestroyed || writableDestroyed) { + if (cb) { + cb(err); + } else if (err && (!this._writableState || !this._writableState.errorEmitted)) { + processNextTick(emitErrorNT, this, err); + } + return; + } + + // we set destroyed to true before firing error callbacks in order + // to make it re-entrance safe in case destroy() is called within callbacks + + if (this._readableState) { + this._readableState.destroyed = true; + } + + // if this is a duplex stream mark the writable part as destroyed as well + if (this._writableState) { + this._writableState.destroyed = true; + } + + this._destroy(err || null, function (err) { + if (!cb && err) { + processNextTick(emitErrorNT, _this, err); + if (_this._writableState) { + _this._writableState.errorEmitted = true; + } + } else if (cb) { + cb(err); + } + }); +} + +function undestroy() { + if (this._readableState) { + this._readableState.destroyed = false; + this._readableState.reading = false; + this._readableState.ended = false; + this._readableState.endEmitted = false; + } + + if (this._writableState) { + this._writableState.destroyed = false; + this._writableState.ended = false; + this._writableState.ending = false; + this._writableState.finished = false; + this._writableState.errorEmitted = false; + } +} + +function emitErrorNT(self, err) { + self.emit('error', err); +} + +module.exports = { + destroy: destroy, + undestroy: undestroy +}; +},{"process-nextick-args":139}],156:[function(require,module,exports){ +module.exports = require('events').EventEmitter; + +},{"events":105}],157:[function(require,module,exports){ +module.exports = require('./readable').PassThrough + +},{"./readable":158}],158:[function(require,module,exports){ +exports = module.exports = require('./lib/_stream_readable.js'); +exports.Stream = exports; +exports.Readable = exports; +exports.Writable = require('./lib/_stream_writable.js'); +exports.Duplex = require('./lib/_stream_duplex.js'); +exports.Transform = require('./lib/_stream_transform.js'); +exports.PassThrough = require('./lib/_stream_passthrough.js'); + +},{"./lib/_stream_duplex.js":149,"./lib/_stream_passthrough.js":150,"./lib/_stream_readable.js":151,"./lib/_stream_transform.js":152,"./lib/_stream_writable.js":153}],159:[function(require,module,exports){ +module.exports = require('./readable').Transform + +},{"./readable":158}],160:[function(require,module,exports){ +module.exports = require('./lib/_stream_writable.js'); + +},{"./lib/_stream_writable.js":153}],161:[function(require,module,exports){ +arguments[4][11][0].apply(exports,arguments) +},{"buffer":69,"dup":11,"hash-base":107,"inherits":123}],162:[function(require,module,exports){ +/* eslint-disable node/no-deprecated-api */ +var buffer = require('buffer') +var Buffer = buffer.Buffer + +// alternative to using Object.keys for old browsers +function copyProps (src, dst) { + for (var key in src) { + dst[key] = src[key] + } +} +if (Buffer.from && Buffer.alloc && Buffer.allocUnsafe && Buffer.allocUnsafeSlow) { + module.exports = buffer +} else { + // Copy properties from require('buffer') + copyProps(buffer, exports) + exports.Buffer = SafeBuffer +} + +function SafeBuffer (arg, encodingOrOffset, length) { + return Buffer(arg, encodingOrOffset, length) +} + +// Copy static methods from Buffer +copyProps(Buffer, SafeBuffer) + +SafeBuffer.from = function (arg, encodingOrOffset, length) { + if (typeof arg === 'number') { + throw new TypeError('Argument must not be a number') + } + return Buffer(arg, encodingOrOffset, length) +} + +SafeBuffer.alloc = function (size, fill, encoding) { + if (typeof size !== 'number') { + throw new TypeError('Argument must be a number') + } + var buf = Buffer(size) + if (fill !== undefined) { + if (typeof encoding === 'string') { + buf.fill(fill, encoding) + } else { + buf.fill(fill) + } + } else { + buf.fill(0) + } + return buf +} + +SafeBuffer.allocUnsafe = function (size) { + if (typeof size !== 'number') { + throw new TypeError('Argument must be a number') + } + return Buffer(size) +} + +SafeBuffer.allocUnsafeSlow = function (size) { + if (typeof size !== 'number') { + throw new TypeError('Argument must be a number') + } + return buffer.SlowBuffer(size) +} + +},{"buffer":69}],163:[function(require,module,exports){ +arguments[4][15][0].apply(exports,arguments) +},{"buffer":69,"dup":15}],164:[function(require,module,exports){ +arguments[4][16][0].apply(exports,arguments) +},{"./sha":165,"./sha1":166,"./sha224":167,"./sha256":168,"./sha384":169,"./sha512":170,"dup":16}],165:[function(require,module,exports){ +arguments[4][18][0].apply(exports,arguments) +},{"./hash":163,"buffer":69,"dup":18,"inherits":123}],166:[function(require,module,exports){ +arguments[4][19][0].apply(exports,arguments) +},{"./hash":163,"buffer":69,"dup":19,"inherits":123}],167:[function(require,module,exports){ +arguments[4][20][0].apply(exports,arguments) +},{"./hash":163,"./sha256":168,"buffer":69,"dup":20,"inherits":123}],168:[function(require,module,exports){ +arguments[4][21][0].apply(exports,arguments) +},{"./hash":163,"buffer":69,"dup":21,"inherits":123}],169:[function(require,module,exports){ +arguments[4][22][0].apply(exports,arguments) +},{"./hash":163,"./sha512":170,"buffer":69,"dup":22,"inherits":123}],170:[function(require,module,exports){ +arguments[4][23][0].apply(exports,arguments) +},{"./hash":163,"buffer":69,"dup":23,"inherits":123}],171:[function(require,module,exports){ +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +module.exports = Stream; + +var EE = require('events').EventEmitter; +var inherits = require('inherits'); + +inherits(Stream, EE); +Stream.Readable = require('readable-stream/readable.js'); +Stream.Writable = require('readable-stream/writable.js'); +Stream.Duplex = require('readable-stream/duplex.js'); +Stream.Transform = require('readable-stream/transform.js'); +Stream.PassThrough = require('readable-stream/passthrough.js'); + +// Backwards-compat with node 0.4.x +Stream.Stream = Stream; + + + +// old-style streams. Note that the pipe method (the only relevant +// part of this class) is overridden in the Readable class. + +function Stream() { + EE.call(this); +} + +Stream.prototype.pipe = function(dest, options) { + var source = this; + + function ondata(chunk) { + if (dest.writable) { + if (false === dest.write(chunk) && source.pause) { + source.pause(); + } + } + } + + source.on('data', ondata); + + function ondrain() { + if (source.readable && source.resume) { + source.resume(); + } + } + + dest.on('drain', ondrain); + + // If the 'end' option is not supplied, dest.end() will be called when + // source gets the 'end' or 'close' events. Only dest.end() once. + if (!dest._isStdio && (!options || options.end !== false)) { + source.on('end', onend); + source.on('close', onclose); + } + + var didOnEnd = false; + function onend() { + if (didOnEnd) return; + didOnEnd = true; + + dest.end(); + } + + + function onclose() { + if (didOnEnd) return; + didOnEnd = true; + + if (typeof dest.destroy === 'function') dest.destroy(); + } + + // don't leave dangling pipes when there are errors. + function onerror(er) { + cleanup(); + if (EE.listenerCount(this, 'error') === 0) { + throw er; // Unhandled stream error in pipe. + } + } + + source.on('error', onerror); + dest.on('error', onerror); + + // remove all the event listeners that were added. + function cleanup() { + source.removeListener('data', ondata); + dest.removeListener('drain', ondrain); + + source.removeListener('end', onend); + source.removeListener('close', onclose); + + source.removeListener('error', onerror); + dest.removeListener('error', onerror); + + source.removeListener('end', cleanup); + source.removeListener('close', cleanup); + + dest.removeListener('close', cleanup); + } + + source.on('end', cleanup); + source.on('close', cleanup); + + dest.on('close', cleanup); + + dest.emit('pipe', source); + + // Allow for unix-like usage: A.pipe(B).pipe(C) + return dest; +}; + +},{"events":105,"inherits":123,"readable-stream/duplex.js":148,"readable-stream/passthrough.js":157,"readable-stream/readable.js":158,"readable-stream/transform.js":159,"readable-stream/writable.js":160}],172:[function(require,module,exports){ +'use strict'; + +var Buffer = require('safe-buffer').Buffer; + +var isEncoding = Buffer.isEncoding || function (encoding) { + encoding = '' + encoding; + switch (encoding && encoding.toLowerCase()) { + case 'hex':case 'utf8':case 'utf-8':case 'ascii':case 'binary':case 'base64':case 'ucs2':case 'ucs-2':case 'utf16le':case 'utf-16le':case 'raw': + return true; + default: + return false; + } +}; + +function _normalizeEncoding(enc) { + if (!enc) return 'utf8'; + var retried; + while (true) { + switch (enc) { + case 'utf8': + case 'utf-8': + return 'utf8'; + case 'ucs2': + case 'ucs-2': + case 'utf16le': + case 'utf-16le': + return 'utf16le'; + case 'latin1': + case 'binary': + return 'latin1'; + case 'base64': + case 'ascii': + case 'hex': + return enc; + default: + if (retried) return; // undefined + enc = ('' + enc).toLowerCase(); + retried = true; + } + } +}; + +// Do not cache `Buffer.isEncoding` when checking encoding names as some +// modules monkey-patch it to support additional encodings +function normalizeEncoding(enc) { + var nenc = _normalizeEncoding(enc); + if (typeof nenc !== 'string' && (Buffer.isEncoding === isEncoding || !isEncoding(enc))) throw new Error('Unknown encoding: ' + enc); + return nenc || enc; +} + +// StringDecoder provides an interface for efficiently splitting a series of +// buffers into a series of JS strings without breaking apart multi-byte +// characters. +exports.StringDecoder = StringDecoder; +function StringDecoder(encoding) { + this.encoding = normalizeEncoding(encoding); + var nb; + switch (this.encoding) { + case 'utf16le': + this.text = utf16Text; + this.end = utf16End; + nb = 4; + break; + case 'utf8': + this.fillLast = utf8FillLast; + nb = 4; + break; + case 'base64': + this.text = base64Text; + this.end = base64End; + nb = 3; + break; + default: + this.write = simpleWrite; + this.end = simpleEnd; + return; + } + this.lastNeed = 0; + this.lastTotal = 0; + this.lastChar = Buffer.allocUnsafe(nb); +} + +StringDecoder.prototype.write = function (buf) { + if (buf.length === 0) return ''; + var r; + var i; + if (this.lastNeed) { + r = this.fillLast(buf); + if (r === undefined) return ''; + i = this.lastNeed; + this.lastNeed = 0; + } else { + i = 0; + } + if (i < buf.length) return r ? r + this.text(buf, i) : this.text(buf, i); + return r || ''; +}; + +StringDecoder.prototype.end = utf8End; + +// Returns only complete characters in a Buffer +StringDecoder.prototype.text = utf8Text; + +// Attempts to complete a partial non-UTF-8 character using bytes from a Buffer +StringDecoder.prototype.fillLast = function (buf) { + if (this.lastNeed <= buf.length) { + buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, this.lastNeed); + return this.lastChar.toString(this.encoding, 0, this.lastTotal); + } + buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, buf.length); + this.lastNeed -= buf.length; +}; + +// Checks the type of a UTF-8 byte, whether it's ASCII, a leading byte, or a +// continuation byte. +function utf8CheckByte(byte) { + if (byte <= 0x7F) return 0;else if (byte >> 5 === 0x06) return 2;else if (byte >> 4 === 0x0E) return 3;else if (byte >> 3 === 0x1E) return 4; + return -1; +} + +// Checks at most 3 bytes at the end of a Buffer in order to detect an +// incomplete multi-byte UTF-8 character. The total number of bytes (2, 3, or 4) +// needed to complete the UTF-8 character (if applicable) are returned. +function utf8CheckIncomplete(self, buf, i) { + var j = buf.length - 1; + if (j < i) return 0; + var nb = utf8CheckByte(buf[j]); + if (nb >= 0) { + if (nb > 0) self.lastNeed = nb - 1; + return nb; + } + if (--j < i) return 0; + nb = utf8CheckByte(buf[j]); + if (nb >= 0) { + if (nb > 0) self.lastNeed = nb - 2; + return nb; + } + if (--j < i) return 0; + nb = utf8CheckByte(buf[j]); + if (nb >= 0) { + if (nb > 0) { + if (nb === 2) nb = 0;else self.lastNeed = nb - 3; + } + return nb; + } + return 0; +} + +// Validates as many continuation bytes for a multi-byte UTF-8 character as +// needed or are available. If we see a non-continuation byte where we expect +// one, we "replace" the validated continuation bytes we've seen so far with +// UTF-8 replacement characters ('\ufffd'), to match v8's UTF-8 decoding +// behavior. The continuation byte check is included three times in the case +// where all of the continuation bytes for a character exist in the same buffer. +// It is also done this way as a slight performance increase instead of using a +// loop. +function utf8CheckExtraBytes(self, buf, p) { + if ((buf[0] & 0xC0) !== 0x80) { + self.lastNeed = 0; + return '\ufffd'.repeat(p); + } + if (self.lastNeed > 1 && buf.length > 1) { + if ((buf[1] & 0xC0) !== 0x80) { + self.lastNeed = 1; + return '\ufffd'.repeat(p + 1); + } + if (self.lastNeed > 2 && buf.length > 2) { + if ((buf[2] & 0xC0) !== 0x80) { + self.lastNeed = 2; + return '\ufffd'.repeat(p + 2); + } + } + } +} + +// Attempts to complete a multi-byte UTF-8 character using bytes from a Buffer. +function utf8FillLast(buf) { + var p = this.lastTotal - this.lastNeed; + var r = utf8CheckExtraBytes(this, buf, p); + if (r !== undefined) return r; + if (this.lastNeed <= buf.length) { + buf.copy(this.lastChar, p, 0, this.lastNeed); + return this.lastChar.toString(this.encoding, 0, this.lastTotal); + } + buf.copy(this.lastChar, p, 0, buf.length); + this.lastNeed -= buf.length; +} + +// Returns all complete UTF-8 characters in a Buffer. If the Buffer ended on a +// partial character, the character's bytes are buffered until the required +// number of bytes are available. +function utf8Text(buf, i) { + var total = utf8CheckIncomplete(this, buf, i); + if (!this.lastNeed) return buf.toString('utf8', i); + this.lastTotal = total; + var end = buf.length - (total - this.lastNeed); + buf.copy(this.lastChar, 0, end); + return buf.toString('utf8', i, end); +} + +// For UTF-8, a replacement character for each buffered byte of a (partial) +// character needs to be added to the output. +function utf8End(buf) { + var r = buf && buf.length ? this.write(buf) : ''; + if (this.lastNeed) return r + '\ufffd'.repeat(this.lastTotal - this.lastNeed); + return r; +} + +// UTF-16LE typically needs two bytes per character, but even if we have an even +// number of bytes available, we need to check if we end on a leading/high +// surrogate. In that case, we need to wait for the next two bytes in order to +// decode the last character properly. +function utf16Text(buf, i) { + if ((buf.length - i) % 2 === 0) { + var r = buf.toString('utf16le', i); + if (r) { + var c = r.charCodeAt(r.length - 1); + if (c >= 0xD800 && c <= 0xDBFF) { + this.lastNeed = 2; + this.lastTotal = 4; + this.lastChar[0] = buf[buf.length - 2]; + this.lastChar[1] = buf[buf.length - 1]; + return r.slice(0, -1); + } + } + return r; + } + this.lastNeed = 1; + this.lastTotal = 2; + this.lastChar[0] = buf[buf.length - 1]; + return buf.toString('utf16le', i, buf.length - 1); +} + +// For UTF-16LE we do not explicitly append special replacement characters if we +// end on a partial character, we simply let v8 handle that. +function utf16End(buf) { + var r = buf && buf.length ? this.write(buf) : ''; + if (this.lastNeed) { + var end = this.lastTotal - this.lastNeed; + return r + this.lastChar.toString('utf16le', 0, end); + } + return r; +} + +function base64Text(buf, i) { + var n = (buf.length - i) % 3; + if (n === 0) return buf.toString('base64', i); + this.lastNeed = 3 - n; + this.lastTotal = 3; + if (n === 1) { + this.lastChar[0] = buf[buf.length - 1]; + } else { + this.lastChar[0] = buf[buf.length - 2]; + this.lastChar[1] = buf[buf.length - 1]; + } + return buf.toString('base64', i, buf.length - n); +} + +function base64End(buf) { + var r = buf && buf.length ? this.write(buf) : ''; + if (this.lastNeed) return r + this.lastChar.toString('base64', 0, 3 - this.lastNeed); + return r; +} + +// Pass bytes on through for single-byte encodings (e.g. ascii, latin1, hex) +function simpleWrite(buf) { + return buf.toString(this.encoding); +} + +function simpleEnd(buf) { + return buf && buf.length ? this.write(buf) : ''; +} +},{"safe-buffer":162}],173:[function(require,module,exports){ +(function (global){ + +/** + * Module exports. + */ + +module.exports = deprecate; + +/** + * Mark that a method should not be used. + * Returns a modified function which warns once by default. + * + * If `localStorage.noDeprecation = true` is set, then it is a no-op. + * + * If `localStorage.throwDeprecation = true` is set, then deprecated functions + * will throw an Error when invoked. + * + * If `localStorage.traceDeprecation = true` is set, then deprecated functions + * will invoke `console.trace()` instead of `console.error()`. + * + * @param {Function} fn - the function to deprecate + * @param {String} msg - the string to print to the console when `fn` is invoked + * @returns {Function} a new "deprecated" version of `fn` + * @api public + */ + +function deprecate (fn, msg) { + if (config('noDeprecation')) { + return fn; + } + + var warned = false; + function deprecated() { + if (!warned) { + if (config('throwDeprecation')) { + throw new Error(msg); + } else if (config('traceDeprecation')) { + console.trace(msg); + } else { + console.warn(msg); + } + warned = true; + } + return fn.apply(this, arguments); + } + + return deprecated; +} + +/** + * Checks `localStorage` for boolean values for the given `name`. + * + * @param {String} name + * @returns {Boolean} + * @api private + */ + +function config (name) { + // accessing global.localStorage can trigger a DOMException in sandboxed iframes + try { + if (!global.localStorage) return false; + } catch (_) { + return false; + } + var val = global.localStorage[name]; + if (null == val) return false; + return String(val).toLowerCase() === 'true'; +} + +}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) +},{}],174:[function(require,module,exports){ +arguments[4][13][0].apply(exports,arguments) +},{"dup":13}],175:[function(require,module,exports){ +module.exports = function isBuffer(arg) { + return arg && typeof arg === 'object' + && typeof arg.copy === 'function' + && typeof arg.fill === 'function' + && typeof arg.readUInt8 === 'function'; +} +},{}],176:[function(require,module,exports){ +(function (process,global){ +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +var formatRegExp = /%[sdj%]/g; +exports.format = function(f) { + if (!isString(f)) { + var objects = []; + for (var i = 0; i < arguments.length; i++) { + objects.push(inspect(arguments[i])); + } + return objects.join(' '); + } + + var i = 1; + var args = arguments; + var len = args.length; + var str = String(f).replace(formatRegExp, function(x) { + if (x === '%%') return '%'; + if (i >= len) return x; + switch (x) { + case '%s': return String(args[i++]); + case '%d': return Number(args[i++]); + case '%j': + try { + return JSON.stringify(args[i++]); + } catch (_) { + return '[Circular]'; + } + default: + return x; + } + }); + for (var x = args[i]; i < len; x = args[++i]) { + if (isNull(x) || !isObject(x)) { + str += ' ' + x; + } else { + str += ' ' + inspect(x); + } + } + return str; +}; + + +// Mark that a method should not be used. +// Returns a modified function which warns once by default. +// If --no-deprecation is set, then it is a no-op. +exports.deprecate = function(fn, msg) { + // Allow for deprecating things in the process of starting up. + if (isUndefined(global.process)) { + return function() { + return exports.deprecate(fn, msg).apply(this, arguments); + }; + } + + if (process.noDeprecation === true) { + return fn; + } + + var warned = false; + function deprecated() { + if (!warned) { + if (process.throwDeprecation) { + throw new Error(msg); + } else if (process.traceDeprecation) { + console.trace(msg); + } else { + console.error(msg); + } + warned = true; + } + return fn.apply(this, arguments); + } + + return deprecated; +}; + + +var debugs = {}; +var debugEnviron; +exports.debuglog = function(set) { + if (isUndefined(debugEnviron)) + debugEnviron = process.env.NODE_DEBUG || ''; + set = set.toUpperCase(); + if (!debugs[set]) { + if (new RegExp('\\b' + set + '\\b', 'i').test(debugEnviron)) { + var pid = process.pid; + debugs[set] = function() { + var msg = exports.format.apply(exports, arguments); + console.error('%s %d: %s', set, pid, msg); + }; + } else { + debugs[set] = function() {}; + } + } + return debugs[set]; +}; + + +/** + * Echos the value of a value. Trys to print the value out + * in the best way possible given the different types. + * + * @param {Object} obj The object to print out. + * @param {Object} opts Optional options object that alters the output. + */ +/* legacy: obj, showHidden, depth, colors*/ +function inspect(obj, opts) { + // default options + var ctx = { + seen: [], + stylize: stylizeNoColor + }; + // legacy... + if (arguments.length >= 3) ctx.depth = arguments[2]; + if (arguments.length >= 4) ctx.colors = arguments[3]; + if (isBoolean(opts)) { + // legacy... + ctx.showHidden = opts; + } else if (opts) { + // got an "options" object + exports._extend(ctx, opts); + } + // set default options + if (isUndefined(ctx.showHidden)) ctx.showHidden = false; + if (isUndefined(ctx.depth)) ctx.depth = 2; + if (isUndefined(ctx.colors)) ctx.colors = false; + if (isUndefined(ctx.customInspect)) ctx.customInspect = true; + if (ctx.colors) ctx.stylize = stylizeWithColor; + return formatValue(ctx, obj, ctx.depth); +} +exports.inspect = inspect; + + +// http://en.wikipedia.org/wiki/ANSI_escape_code#graphics +inspect.colors = { + 'bold' : [1, 22], + 'italic' : [3, 23], + 'underline' : [4, 24], + 'inverse' : [7, 27], + 'white' : [37, 39], + 'grey' : [90, 39], + 'black' : [30, 39], + 'blue' : [34, 39], + 'cyan' : [36, 39], + 'green' : [32, 39], + 'magenta' : [35, 39], + 'red' : [31, 39], + 'yellow' : [33, 39] +}; + +// Don't use 'blue' not visible on cmd.exe +inspect.styles = { + 'special': 'cyan', + 'number': 'yellow', + 'boolean': 'yellow', + 'undefined': 'grey', + 'null': 'bold', + 'string': 'green', + 'date': 'magenta', + // "name": intentionally not styling + 'regexp': 'red' +}; + + +function stylizeWithColor(str, styleType) { + var style = inspect.styles[styleType]; + + if (style) { + return '\u001b[' + inspect.colors[style][0] + 'm' + str + + '\u001b[' + inspect.colors[style][1] + 'm'; + } else { + return str; + } +} + + +function stylizeNoColor(str, styleType) { + return str; +} + + +function arrayToHash(array) { + var hash = {}; + + array.forEach(function(val, idx) { + hash[val] = true; + }); + + return hash; +} + + +function formatValue(ctx, value, recurseTimes) { + // Provide a hook for user-specified inspect functions. + // Check that value is an object with an inspect function on it + if (ctx.customInspect && + value && + isFunction(value.inspect) && + // Filter out the util module, it's inspect function is special + value.inspect !== exports.inspect && + // Also filter out any prototype objects using the circular check. + !(value.constructor && value.constructor.prototype === value)) { + var ret = value.inspect(recurseTimes, ctx); + if (!isString(ret)) { + ret = formatValue(ctx, ret, recurseTimes); + } + return ret; + } + + // Primitive types cannot have properties + var primitive = formatPrimitive(ctx, value); + if (primitive) { + return primitive; + } + + // Look up the keys of the object. + var keys = Object.keys(value); + var visibleKeys = arrayToHash(keys); + + if (ctx.showHidden) { + keys = Object.getOwnPropertyNames(value); + } + + // IE doesn't make error fields non-enumerable + // http://msdn.microsoft.com/en-us/library/ie/dww52sbt(v=vs.94).aspx + if (isError(value) + && (keys.indexOf('message') >= 0 || keys.indexOf('description') >= 0)) { + return formatError(value); + } + + // Some type of object without properties can be shortcutted. + if (keys.length === 0) { + if (isFunction(value)) { + var name = value.name ? ': ' + value.name : ''; + return ctx.stylize('[Function' + name + ']', 'special'); + } + if (isRegExp(value)) { + return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp'); + } + if (isDate(value)) { + return ctx.stylize(Date.prototype.toString.call(value), 'date'); + } + if (isError(value)) { + return formatError(value); + } + } + + var base = '', array = false, braces = ['{', '}']; + + // Make Array say that they are Array + if (isArray(value)) { + array = true; + braces = ['[', ']']; + } + + // Make functions say that they are functions + if (isFunction(value)) { + var n = value.name ? ': ' + value.name : ''; + base = ' [Function' + n + ']'; + } + + // Make RegExps say that they are RegExps + if (isRegExp(value)) { + base = ' ' + RegExp.prototype.toString.call(value); + } + + // Make dates with properties first say the date + if (isDate(value)) { + base = ' ' + Date.prototype.toUTCString.call(value); + } + + // Make error with message first say the error + if (isError(value)) { + base = ' ' + formatError(value); + } + + if (keys.length === 0 && (!array || value.length == 0)) { + return braces[0] + base + braces[1]; + } + + if (recurseTimes < 0) { + if (isRegExp(value)) { + return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp'); + } else { + return ctx.stylize('[Object]', 'special'); + } + } + + ctx.seen.push(value); + + var output; + if (array) { + output = formatArray(ctx, value, recurseTimes, visibleKeys, keys); + } else { + output = keys.map(function(key) { + return formatProperty(ctx, value, recurseTimes, visibleKeys, key, array); + }); + } + + ctx.seen.pop(); + + return reduceToSingleString(output, base, braces); +} + + +function formatPrimitive(ctx, value) { + if (isUndefined(value)) + return ctx.stylize('undefined', 'undefined'); + if (isString(value)) { + var simple = '\'' + JSON.stringify(value).replace(/^"|"$/g, '') + .replace(/'/g, "\\'") + .replace(/\\"/g, '"') + '\''; + return ctx.stylize(simple, 'string'); + } + if (isNumber(value)) + return ctx.stylize('' + value, 'number'); + if (isBoolean(value)) + return ctx.stylize('' + value, 'boolean'); + // For some reason typeof null is "object", so special case here. + if (isNull(value)) + return ctx.stylize('null', 'null'); +} + + +function formatError(value) { + return '[' + Error.prototype.toString.call(value) + ']'; +} + + +function formatArray(ctx, value, recurseTimes, visibleKeys, keys) { + var output = []; + for (var i = 0, l = value.length; i < l; ++i) { + if (hasOwnProperty(value, String(i))) { + output.push(formatProperty(ctx, value, recurseTimes, visibleKeys, + String(i), true)); + } else { + output.push(''); + } + } + keys.forEach(function(key) { + if (!key.match(/^\d+$/)) { + output.push(formatProperty(ctx, value, recurseTimes, visibleKeys, + key, true)); + } + }); + return output; +} + + +function formatProperty(ctx, value, recurseTimes, visibleKeys, key, array) { + var name, str, desc; + desc = Object.getOwnPropertyDescriptor(value, key) || { value: value[key] }; + if (desc.get) { + if (desc.set) { + str = ctx.stylize('[Getter/Setter]', 'special'); + } else { + str = ctx.stylize('[Getter]', 'special'); + } + } else { + if (desc.set) { + str = ctx.stylize('[Setter]', 'special'); + } + } + if (!hasOwnProperty(visibleKeys, key)) { + name = '[' + key + ']'; + } + if (!str) { + if (ctx.seen.indexOf(desc.value) < 0) { + if (isNull(recurseTimes)) { + str = formatValue(ctx, desc.value, null); + } else { + str = formatValue(ctx, desc.value, recurseTimes - 1); + } + if (str.indexOf('\n') > -1) { + if (array) { + str = str.split('\n').map(function(line) { + return ' ' + line; + }).join('\n').substr(2); + } else { + str = '\n' + str.split('\n').map(function(line) { + return ' ' + line; + }).join('\n'); + } + } + } else { + str = ctx.stylize('[Circular]', 'special'); + } + } + if (isUndefined(name)) { + if (array && key.match(/^\d+$/)) { + return str; + } + name = JSON.stringify('' + key); + if (name.match(/^"([a-zA-Z_][a-zA-Z_0-9]*)"$/)) { + name = name.substr(1, name.length - 2); + name = ctx.stylize(name, 'name'); + } else { + name = name.replace(/'/g, "\\'") + .replace(/\\"/g, '"') + .replace(/(^"|"$)/g, "'"); + name = ctx.stylize(name, 'string'); + } + } + + return name + ': ' + str; +} + + +function reduceToSingleString(output, base, braces) { + var numLinesEst = 0; + var length = output.reduce(function(prev, cur) { + numLinesEst++; + if (cur.indexOf('\n') >= 0) numLinesEst++; + return prev + cur.replace(/\u001b\[\d\d?m/g, '').length + 1; + }, 0); + + if (length > 60) { + return braces[0] + + (base === '' ? '' : base + '\n ') + + ' ' + + output.join(',\n ') + + ' ' + + braces[1]; + } + + return braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1]; +} + + +// NOTE: These type checking functions intentionally don't use `instanceof` +// because it is fragile and can be easily faked with `Object.create()`. +function isArray(ar) { + return Array.isArray(ar); +} +exports.isArray = isArray; + +function isBoolean(arg) { + return typeof arg === 'boolean'; +} +exports.isBoolean = isBoolean; + +function isNull(arg) { + return arg === null; +} +exports.isNull = isNull; + +function isNullOrUndefined(arg) { + return arg == null; +} +exports.isNullOrUndefined = isNullOrUndefined; + +function isNumber(arg) { + return typeof arg === 'number'; +} +exports.isNumber = isNumber; + +function isString(arg) { + return typeof arg === 'string'; +} +exports.isString = isString; + +function isSymbol(arg) { + return typeof arg === 'symbol'; +} +exports.isSymbol = isSymbol; + +function isUndefined(arg) { + return arg === void 0; +} +exports.isUndefined = isUndefined; + +function isRegExp(re) { + return isObject(re) && objectToString(re) === '[object RegExp]'; +} +exports.isRegExp = isRegExp; + +function isObject(arg) { + return typeof arg === 'object' && arg !== null; +} +exports.isObject = isObject; + +function isDate(d) { + return isObject(d) && objectToString(d) === '[object Date]'; +} +exports.isDate = isDate; + +function isError(e) { + return isObject(e) && + (objectToString(e) === '[object Error]' || e instanceof Error); +} +exports.isError = isError; + +function isFunction(arg) { + return typeof arg === 'function'; +} +exports.isFunction = isFunction; + +function isPrimitive(arg) { + return arg === null || + typeof arg === 'boolean' || + typeof arg === 'number' || + typeof arg === 'string' || + typeof arg === 'symbol' || // ES6 symbol + typeof arg === 'undefined'; +} +exports.isPrimitive = isPrimitive; + +exports.isBuffer = require('./support/isBuffer'); + +function objectToString(o) { + return Object.prototype.toString.call(o); +} + + +function pad(n) { + return n < 10 ? '0' + n.toString(10) : n.toString(10); +} + + +var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', + 'Oct', 'Nov', 'Dec']; + +// 26 Feb 16:19:34 +function timestamp() { + var d = new Date(); + var time = [pad(d.getHours()), + pad(d.getMinutes()), + pad(d.getSeconds())].join(':'); + return [d.getDate(), months[d.getMonth()], time].join(' '); +} + + +// log is just a thin wrapper to console.log that prepends a timestamp +exports.log = function() { + console.log('%s - %s', timestamp(), exports.format.apply(exports, arguments)); +}; + + +/** + * Inherit the prototype methods from one constructor into another. + * + * The Function.prototype.inherits from lang.js rewritten as a standalone + * function (not on Function.prototype). NOTE: If this file is to be loaded + * during bootstrapping this function needs to be rewritten using some native + * functions as prototype setup using normal JavaScript does not work as + * expected during bootstrapping (see mirror.js in r114903). + * + * @param {function} ctor Constructor function which needs to inherit the + * prototype. + * @param {function} superCtor Constructor function to inherit prototype from. + */ +exports.inherits = require('inherits'); + +exports._extend = function(origin, add) { + // Don't do anything if add isn't an object + if (!add || !isObject(add)) return origin; + + var keys = Object.keys(add); + var i = keys.length; + while (i--) { + origin[keys[i]] = add[keys[i]]; + } + return origin; +}; + +function hasOwnProperty(obj, prop) { + return Object.prototype.hasOwnProperty.call(obj, prop); +} + +}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) +},{"./support/isBuffer":175,"_process":140,"inherits":174}],177:[function(require,module,exports){ +var indexOf = require('indexof'); + +var Object_keys = function (obj) { + if (Object.keys) return Object.keys(obj) + else { + var res = []; + for (var key in obj) res.push(key) + return res; + } +}; + +var forEach = function (xs, fn) { + if (xs.forEach) return xs.forEach(fn) + else for (var i = 0; i < xs.length; i++) { + fn(xs[i], i, xs); + } +}; + +var defineProp = (function() { + try { + Object.defineProperty({}, '_', {}); + return function(obj, name, value) { + Object.defineProperty(obj, name, { + writable: true, + enumerable: false, + configurable: true, + value: value + }) + }; + } catch(e) { + return function(obj, name, value) { + obj[name] = value; + }; + } +}()); + +var globals = ['Array', 'Boolean', 'Date', 'Error', 'EvalError', 'Function', +'Infinity', 'JSON', 'Math', 'NaN', 'Number', 'Object', 'RangeError', +'ReferenceError', 'RegExp', 'String', 'SyntaxError', 'TypeError', 'URIError', +'decodeURI', 'decodeURIComponent', 'encodeURI', 'encodeURIComponent', 'escape', +'eval', 'isFinite', 'isNaN', 'parseFloat', 'parseInt', 'undefined', 'unescape']; + +function Context() {} +Context.prototype = {}; + +var Script = exports.Script = function NodeScript (code) { + if (!(this instanceof Script)) return new Script(code); + this.code = code; +}; + +Script.prototype.runInContext = function (context) { + if (!(context instanceof Context)) { + throw new TypeError("needs a 'context' argument."); + } + + var iframe = document.createElement('iframe'); + if (!iframe.style) iframe.style = {}; + iframe.style.display = 'none'; + + document.body.appendChild(iframe); + + var win = iframe.contentWindow; + var wEval = win.eval, wExecScript = win.execScript; + + if (!wEval && wExecScript) { + // win.eval() magically appears when this is called in IE: + wExecScript.call(win, 'null'); + wEval = win.eval; + } + + forEach(Object_keys(context), function (key) { + win[key] = context[key]; + }); + forEach(globals, function (key) { + if (context[key]) { + win[key] = context[key]; + } + }); + + var winKeys = Object_keys(win); + + var res = wEval.call(win, this.code); + + forEach(Object_keys(win), function (key) { + // Avoid copying circular objects like `top` and `window` by only + // updating existing context properties or new properties in the `win` + // that was only introduced after the eval. + if (key in context || indexOf(winKeys, key) === -1) { + context[key] = win[key]; + } + }); + + forEach(globals, function (key) { + if (!(key in context)) { + defineProp(context, key, win[key]); + } + }); + + document.body.removeChild(iframe); + + return res; +}; + +Script.prototype.runInThisContext = function () { + return eval(this.code); // maybe... +}; + +Script.prototype.runInNewContext = function (context) { + var ctx = Script.createContext(context); + var res = this.runInContext(ctx); + + forEach(Object_keys(ctx), function (key) { + context[key] = ctx[key]; + }); + + return res; +}; + +forEach(Object_keys(Script.prototype), function (name) { + exports[name] = Script[name] = function (code) { + var s = Script(code); + return s[name].apply(s, [].slice.call(arguments, 1)); + }; +}); + +exports.createScript = function (code) { + return exports.Script(code); +}; + +exports.createContext = Script.createContext = function (context) { + var copy = new Context(); + if(typeof context === 'object') { + forEach(Object_keys(context), function (key) { + copy[key] = context[key]; + }); + } + return copy; +}; + +},{"indexof":122}]},{},[3]); diff --git a/vendor/bootstrap/css/bootstrap.min.css b/vendor/bootstrap/css/bootstrap.min.css new file mode 100644 index 0000000..ed3905e --- /dev/null +++ b/vendor/bootstrap/css/bootstrap.min.css @@ -0,0 +1,6 @@ +/*! + * Bootstrap v3.3.7 (http://getbootstrap.com) + * Copyright 2011-2016 Twitter, Inc. + * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE) + *//*! normalize.css v3.0.3 | MIT License | github.com/necolas/normalize.css */html{font-family:sans-serif;-webkit-text-size-adjust:100%;-ms-text-size-adjust:100%}body{margin:0}article,aside,details,figcaption,figure,footer,header,hgroup,main,menu,nav,section,summary{display:block}audio,canvas,progress,video{display:inline-block;vertical-align:baseline}audio:not([controls]){display:none;height:0}[hidden],template{display:none}a{background-color:transparent}a:active,a:hover{outline:0}abbr[title]{border-bottom:1px dotted}b,strong{font-weight:700}dfn{font-style:italic}h1{margin:.67em 0;font-size:2em}mark{color:#000;background:#ff0}small{font-size:80%}sub,sup{position:relative;font-size:75%;line-height:0;vertical-align:baseline}sup{top:-.5em}sub{bottom:-.25em}img{border:0}svg:not(:root){overflow:hidden}figure{margin:1em 40px}hr{height:0;-webkit-box-sizing:content-box;-moz-box-sizing:content-box;box-sizing:content-box}pre{overflow:auto}code,kbd,pre,samp{font-family:monospace,monospace;font-size:1em}button,input,optgroup,select,textarea{margin:0;font:inherit;color:inherit}button{overflow:visible}button,select{text-transform:none}button,html input[type=button],input[type=reset],input[type=submit]{-webkit-appearance:button;cursor:pointer}button[disabled],html input[disabled]{cursor:default}button::-moz-focus-inner,input::-moz-focus-inner{padding:0;border:0}input{line-height:normal}input[type=checkbox],input[type=radio]{-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box;padding:0}input[type=number]::-webkit-inner-spin-button,input[type=number]::-webkit-outer-spin-button{height:auto}input[type=search]{-webkit-box-sizing:content-box;-moz-box-sizing:content-box;box-sizing:content-box;-webkit-appearance:textfield}input[type=search]::-webkit-search-cancel-button,input[type=search]::-webkit-search-decoration{-webkit-appearance:none}fieldset{padding:.35em .625em .75em;margin:0 2px;border:1px solid silver}legend{padding:0;border:0}textarea{overflow:auto}optgroup{font-weight:700}table{border-spacing:0;border-collapse:collapse}td,th{padding:0}/*! 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margin: 0 auto; + text-align: left; + z-index: 1045; } + +.mfp-inline-holder .mfp-content, +.mfp-ajax-holder .mfp-content { + width: 100%; + cursor: auto; } + +.mfp-ajax-cur { + cursor: progress; } + +.mfp-zoom-out-cur, .mfp-zoom-out-cur .mfp-image-holder .mfp-close { + cursor: -moz-zoom-out; + cursor: -webkit-zoom-out; + cursor: zoom-out; } + +.mfp-zoom { + cursor: pointer; + cursor: -webkit-zoom-in; + cursor: -moz-zoom-in; + cursor: zoom-in; } + +.mfp-auto-cursor .mfp-content { + cursor: auto; } + +.mfp-close, +.mfp-arrow, +.mfp-preloader, +.mfp-counter { + -webkit-user-select: none; + -moz-user-select: none; + user-select: none; } + +.mfp-loading.mfp-figure { + display: none; } + +.mfp-hide { + display: none !important; } + +.mfp-preloader { + color: #CCC; + position: absolute; + top: 50%; + width: auto; + text-align: center; + margin-top: -0.8em; + left: 8px; + right: 8px; + z-index: 1044; } + .mfp-preloader a { + color: #CCC; } + .mfp-preloader a:hover { + color: #FFF; } + +.mfp-s-ready .mfp-preloader { + display: none; } + +.mfp-s-error .mfp-content { + display: none; } + +button.mfp-close, +button.mfp-arrow { + overflow: visible; + cursor: pointer; + background: transparent; + border: 0; + -webkit-appearance: none; + display: block; + outline: none; + padding: 0; + z-index: 1046; + box-shadow: none; + touch-action: manipulation; } + +button::-moz-focus-inner { + padding: 0; + border: 0; } + +.mfp-close { + width: 44px; + height: 44px; + line-height: 44px; + position: absolute; + right: 0; + top: 0; + text-decoration: none; + text-align: center; + opacity: 0.65; + padding: 0 0 18px 10px; + color: #FFF; + font-style: normal; + font-size: 28px; + font-family: Arial, Baskerville, monospace; } + .mfp-close:hover, + .mfp-close:focus { + opacity: 1; } + .mfp-close:active { + top: 1px; } + +.mfp-close-btn-in .mfp-close { + color: #333; } + +.mfp-image-holder .mfp-close, +.mfp-iframe-holder .mfp-close { + color: #FFF; + right: -6px; + text-align: right; + padding-right: 6px; + width: 100%; } + +.mfp-counter { + position: absolute; + top: 0; + right: 0; + color: #CCC; + font-size: 12px; + line-height: 18px; + white-space: nowrap; } + +.mfp-arrow { + position: absolute; + opacity: 0.65; + margin: 0; + top: 50%; + margin-top: -55px; + padding: 0; + width: 90px; + height: 110px; + -webkit-tap-highlight-color: transparent; } + .mfp-arrow:active { + margin-top: -54px; } + .mfp-arrow:hover, + .mfp-arrow:focus { + opacity: 1; } + .mfp-arrow:before, + .mfp-arrow:after { + content: ''; + display: block; + width: 0; + height: 0; + position: absolute; + left: 0; + top: 0; + margin-top: 35px; + margin-left: 35px; + border: medium inset transparent; } + .mfp-arrow:after { + border-top-width: 13px; + border-bottom-width: 13px; + top: 8px; } + .mfp-arrow:before { + border-top-width: 21px; + border-bottom-width: 21px; + opacity: 0.7; } + +.mfp-arrow-left { + left: 0; } + .mfp-arrow-left:after { + border-right: 17px solid #FFF; + margin-left: 31px; } + .mfp-arrow-left:before { + margin-left: 25px; + border-right: 27px solid #3F3F3F; } + +.mfp-arrow-right { + right: 0; } + .mfp-arrow-right:after { + border-left: 17px solid #FFF; + margin-left: 39px; } + .mfp-arrow-right:before { + border-left: 27px solid #3F3F3F; } + +.mfp-iframe-holder { + padding-top: 40px; + padding-bottom: 40px; } + .mfp-iframe-holder .mfp-content { + line-height: 0; + width: 100%; + max-width: 900px; } + .mfp-iframe-holder .mfp-close { + top: -40px; } + +.mfp-iframe-scaler { + width: 100%; + height: 0; + overflow: hidden; + padding-top: 56.25%; } + .mfp-iframe-scaler iframe { + position: absolute; + display: block; + top: 0; + left: 0; + width: 100%; + height: 100%; + box-shadow: 0 0 8px rgba(0, 0, 0, 0.6); + background: #000; } + +/* Main image in popup */ +img.mfp-img { + width: auto; + max-width: 100%; + height: auto; + display: block; + line-height: 0; + box-sizing: border-box; + padding: 40px 0 40px; + margin: 0 auto; } + +/* The shadow behind the image */ +.mfp-figure { + line-height: 0; } + .mfp-figure:after { + content: ''; + position: absolute; + left: 0; + top: 40px; + bottom: 40px; + display: block; + right: 0; + width: auto; + height: auto; + z-index: -1; + box-shadow: 0 0 8px rgba(0, 0, 0, 0.6); + background: #444; } + .mfp-figure small { + color: #BDBDBD; + display: block; + font-size: 12px; + line-height: 14px; } + .mfp-figure figure { + margin: 0; } + +.mfp-bottom-bar { + margin-top: -36px; + position: absolute; + top: 100%; + left: 0; + width: 100%; + cursor: auto; } + +.mfp-title { + text-align: left; + line-height: 18px; + color: #F3F3F3; + word-wrap: break-word; + padding-right: 36px; } + +.mfp-image-holder .mfp-content { + max-width: 100%; } + +.mfp-gallery .mfp-image-holder .mfp-figure { + cursor: pointer; } + +@media screen and (max-width: 800px) and (orientation: landscape), screen and (max-height: 300px) { + /** + * Remove all paddings around the image on small screen + */ + .mfp-img-mobile .mfp-image-holder { + padding-left: 0; + padding-right: 0; } + .mfp-img-mobile img.mfp-img { + padding: 0; } + .mfp-img-mobile .mfp-figure:after { + top: 0; + bottom: 0; } + .mfp-img-mobile .mfp-figure small { + display: inline; + margin-left: 5px; } + .mfp-img-mobile .mfp-bottom-bar { + background: rgba(0, 0, 0, 0.6); + bottom: 0; + margin: 0; + top: auto; + padding: 3px 5px; + position: fixed; + box-sizing: border-box; } + .mfp-img-mobile .mfp-bottom-bar:empty { + padding: 0; } + .mfp-img-mobile .mfp-counter { + right: 5px; + top: 3px; } + .mfp-img-mobile .mfp-close { + top: 0; + right: 0; + width: 35px; + height: 35px; + line-height: 35px; + background: rgba(0, 0, 0, 0.6); + position: fixed; + text-align: center; + padding: 0; } } + +@media all and (max-width: 900px) { + .mfp-arrow { + -webkit-transform: scale(0.75); + transform: scale(0.75); } + .mfp-arrow-left { + -webkit-transform-origin: 0; + transform-origin: 0; } + .mfp-arrow-right { + -webkit-transform-origin: 100%; + transform-origin: 100%; } + .mfp-container { + padding-left: 6px; + padding-right: 6px; } } diff --git a/vendor/scrollreveal/scrollreveal.min.js b/vendor/scrollreveal/scrollreveal.min.js new file mode 100644 index 0000000..4adb29f --- /dev/null +++ b/vendor/scrollreveal/scrollreveal.min.js @@ -0,0 +1 @@ +!function(e,t){"function"==typeof define&&define.amd?define(t):"object"==typeof exports?module.exports=t(require,exports,module):e.ScrollReveal=t()}(this,function(e,t,n){return function(){"use strict";var e,t,n;this.ScrollReveal=function(){function i(n){return"undefined"==typeof this||Object.getPrototypeOf(this)!==i.prototype?new i(n):(e=this,e.tools=new t,e.isSupported()?(e.tools.extend(e.defaults,n||{}),o(e.defaults),e.store={elements:{},containers:[]},e.sequences={},e.history=[],e.uid=0,e.initialized=!1):"undefined"!=typeof console&&null!==console,e)}function o(t){var n=t.container;return n&&"string"==typeof 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