Pure js crypto

.eslintignore

@@ -1,3 +1,4 @@
 # Ignore artifacts:
 lib
-jest.config.js
+jest.config.js
+out

.eslintrc.yaml

@@ -1,8 +1,9 @@
 extends: '@adiwajshing'
 parserOptions:
-  project: ./tsconfig.lint.json
+  project: ./tsconfig.json
 rules:
     '@typescript-eslint/no-explicit-any': 0
     '@typescript-eslint/no-unused-vars': 0
     '@typescript-eslint/type-annotation-spacing': 0
-    '@typescript-eslint/member-delimiter-style': 0
+    '@typescript-eslint/member-delimiter-style': 0
+    '@typescript-eslint/consistent-type-imports': 'error'

.github/workflows/test.yaml

@@ -18,7 +18,7 @@ jobs:
     - name: Setup Node
       uses: actions/setup-node@v4
       with:
-        node-version: 18
+        node-version: 24
         cache: 'npm'
 
     - uses: actions/cache@v4
@@ -32,5 +32,8 @@ jobs:
     - name: Lint
       run: npm run lint
 
-    - name: Test
-      run: npm run test
+    - name: Test (PureJS)
+      run: npm run test:purejs
+
+    - name: Test (WebCrypto)
+      run: npm run test:webcrypto

.gitignore

@@ -2,3 +2,4 @@ node_modules
 lib
 .DS_Store
 .idea
+out

README.md

@@ -4,9 +4,9 @@
     </div>
 </div>
 
-A TLS client implementation in typescript. This library is fully compatible with the browser (without any polyfills) and on Node Js. 
+A TLS client implementation in typescript. This library is fully compatible with the browser (without any polyfills), and on any other JavaScript environment.
 
-As all the cryptography is handled by webcrypto -- running on React native requires a polyfill for the "WebCrypto" module.
+As all the cryptography is handled by either "webcrypto" or a "pure-js" implementation if webcrypto is not available.
 
 ## Dependencies
 
@@ -47,8 +47,6 @@ As all the cryptography is handled by webcrypto -- running on React native requi
 - TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
 - TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
 
-Note: AES-CBC only works correctly on NodeJs.
-
 ### Certificates
 - The entire Mozilla CA store is supported
 - A few additional certificates have also been added. See `src/utils/root-ca.ts`
@@ -60,8 +58,28 @@ Edge version:
 npm i git+https://github.com/reclaimprotocol/tls
 ```
 
+## Set Crypto Implementation
+
+When on the browser, NodeJS or another NodeJS like runtime (such as Bun), you can set the crypto implementation to use the native `webcrypto` API. This is the most performant way to use this library.
+``` ts
+import { setCryptoImplementation } from '@reclaimprotocol/tls'
+import { webcryptoCrypto } from '@reclaimprotocol/tls/webcrypto'
+
+setCryptoImplementation(webcryptoCrypto)
+```
+
+If webcrypto is not available, you can use the `pure-js` implementation. This is slower, but works in all JavaScript environments -- even JavascriptCore.
+``` ts
+import { setCryptoImplementation } from '@reclaimprotocol/tls'
+import { pureJsCrypto } from '@reclaimprotocol/tls/pure-js'
+
+setCryptoImplementation(pureJsCrypto)
+```
+
 ## Example Usage
 
+After you've set the crypto implementation, you can use the TLS client like this:
+
 ``` ts
 import { Socket } from 'net'
 import { makeTLSClient, uint8ArrayToStr } from '@reclaimprotocol/tls'
@@ -146,6 +164,13 @@ Use the TLS KeyUpdate method to update the traffic keys. This sends a KeyUpdate
 await tls.updateTrafficKeys()
 ```
 
+### Testing Connections
+
+If you want to test a connection to a host, you can use the `handshake.ts` script. This script will connect to the specified host and port, perform a TLS handshake, and log the result.
+```bash
+npm run handshake -- --host www.google.com
+```
+
 ## Updating CA certificates
 ```bash
 npm run update:root-ca

cert/private-key.pem

@@ -1,15 +1,28 @@
------BEGIN RSA PRIVATE KEY-----
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------END RSA PRIVATE KEY-----
+-----BEGIN PRIVATE KEY-----
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+-----END PRIVATE KEY-----

cert/public-cert.pem

@@ -1,11 +1,22 @@
 -----BEGIN CERTIFICATE-----
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 -----END CERTIFICATE-----