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des-tests.jl
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des-tests.jl
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# This file is part of Jlsca, license is GPLv3, see https://www.gnu.org/licenses/gpl-3.0.en.html
#
# Author: Cees-Bart Breunesse
module DesTest
using Base.Test
include("des-core.jl")
function testBitsAndBytes()
bytes = hex2bytes("deadbeefc335")
int = Int(0xdeadbeefc335)
bits = BitArray([parse(string(x)) for x in "110111101010110110111110111011111100001100110101"])
@test toBits(bytes) == toBits(int, 48)
@test toBits(bytes) == bits
@test toUInt64(bits) == int
end
function testSixbitsShit()
rkbytes = ["8805bc20c812", "53e4c28209c8", "78cda2809311", "f0a10f530620", "218617580908", "6518b600701c", "b6a0f06130a0", "9e4632a0082b", "25eb43334500", "2375a3880102","f905d1c46204", "55c2997002c8", "17919690900b", "3e08c7063620", "3b602c382960", "45bccd464025"]
rk6bits = ["2200163c080c2012", "143e130220202708", "1e0c362220090c11", "3c0a040f14301820", "0818181716002408", "191122360007001c", "2d2a033018130220", "272418322800202b", "091e2d030c341400", "0837162322000402", "3e10171131060804", "151c0a191c000b08", "053906162409000b", "0f20230701231820", "0e36002c0e022520", "111b330d11240025"]
for i in 1:length(rkbytes)
bytes = hex2bytes(rkbytes[i])
sixbits = hex2bytes(rk6bits[i])
@test toBits(bytes) == toBits(sixbits, 6)
@test toSixbits(toBits(bytes)) == sixbits
end
end
function testKeyExpansion()
key = hex2bytes("8a7400a03230da28")
rkbytes = ["8805bc20c812", "53e4c28209c8", "78cda2809311", "f0a10f530620", "218617580908", "6518b600701c", "b6a0f06130a0", "9e4632a0082b", "25eb43334500", "2375a3880102","f905d1c46204", "55c2997002c8", "17919690900b", "3e08c7063620", "3b602c382960", "45bccd464025"]
rk6bits = ["2200163c080c2012", "143e130220202708", "1e0c362220090c11", "3c0a040f14301820", "0818181716002408", "191122360007001c", "2d2a033018130220", "272418322800202b", "091e2d030c341400", "0837162322000402", "3e10171131060804", "151c0a191c000b08", "053906162409000b", "0f20230701231820", "0e36002c0e022520", "111b330d11240025"]
cd = KeyExpansion(key)
for i in 1:16
k = getK(cd, i)
@test toBytes(k) == hex2bytes(rkbytes[i])
@test toSixbits(k) == hex2bytes(rk6bits[i])
# @printf("round %d key bytes: %s\n", i, bytes2hex(toBytes(k)))
# @printf("round %d key 6bits: %s\n", i, bytes2hex(toSixbits(k)))
end
end
function testKeyExpansionBackwards()
key = [(UInt8(rand(0:255)) & 0xfe) for x in 1:8] #hex2bytes("8a7400a03230da28")
cd = KeyExpansion(key)
rk1num = 1
rk1 = getK(cd, rk1num)
rk2num = 2
rk2 = getK(cd, rk2num)
# try some bit errors and see what KeyExpansionBackwards does! It helps the user, yeah for real!
# rk1[1] $= 1
# rk2[6*6+2] $= 1
# rk2[6*6+1] $= 1
recoveredkey = KeyExpansionBackwards(rk1, rk1num, rk2, rk2num)
@test key == recoveredkey
end
function testIP()
input = hex2bytes("a76db873c63fe078")
expectedIP = hex2bytes("daac332b55efa639")
@test toBytes(IP(toBits(input))) == expectedIP
end
function testCipher()
key = hex2bytes("CAFECEE5DEADBEEF")
input = hex2bytes("1122334455667788")
expectedoutput = hex2bytes("cd17b90c86f090f4")
cd = KeyExpansion(key)
output = Cipher(input, cd)
@test output == expectedoutput
plain = InvCipher(output, cd)
@test plain == input
end
function testTdes2()
input = hex2bytes("f1033ed6bdfea107")
key = hex2bytes("761ec2fe00f6caa8d658b4ba70ce0c2c")
expectedoutput = hex2bytes("5792944d5395a420")
key1 = KeyExpansion(key[1:8])
key2 = KeyExpansion(key[9:16])
@test expectedoutput == TDESencrypt(input, key1, key2, key1)
computedinput = TDESdecrypt(expectedoutput, key1, key2, key1)
@test computedinput == input
end
function testTdes3()
input = hex2bytes("ab81f898e3ddfe81")
key = hex2bytes("0432028cdea6ea3060d0484086def47cc0e89c467caad6b0")
expectedoutput = hex2bytes("8890f771124d9b01")
key1 = KeyExpansion(key[1:8])
key2 = KeyExpansion(key[9:16])
key3 = KeyExpansion(key[17:24])
@test expectedoutput == TDESencrypt(input, key1, key2, key3)
computedinput = TDESdecrypt(expectedoutput, key1, key2, key3)
@test computedinput == input
end
testBitsAndBytes()
testSixbitsShit()
testKeyExpansion()
testKeyExpansionBackwards()
testIP()
testCipher()
testTdes2()
testTdes3()
end