#!/usr/bin/env python3.6
import cryptopals
finalKey = None
finalScr = 0.0
finalOut = ''
with open('4.txt') as inFile:
fileLines = inFile.read().split('\n')
for l in fileLines:
xorKey, xorScr, xorOut = cryptopals.findXorKey(bytes.fromhex(l))
if xorScr > finalScr:
finalKey = xorKey
finalScr = xorScr
finalOut = xorOut
finalOut = finalOut.decode('utf-8').strip() # stringify
print('KEY: %s' % (finalKey,))
print('SCR: %s' % (finalScr,))
print('XOR: %s' % (finalOut,), end=' ')
cryptopals.test(finalOut, "Now that the party is jumping")
#!/usr/bin/env python3.6
import cryptopals
input1 = "Burning 'em, if you ain't quick and nimble\nI go crazy when I hear a cymbal".encode('utf-8')
key = 'ICE'.encode('UTF-8')
output1 = cryptopals.repeatingXor(input1, key).hex()
output2 = cryptopals.repeatingXor(bytes.fromhex(output1), key)
print('INP: %s' % (input1,))
print('KEY: %s' % (key,))
print('OUT: %s' % (output1,), end=' ')
cryptopals.test(output1, '0b3637272a2b2e63622c2e69692a23693a2a3c6324202d623d63343c2a26226324272765272a282b2f20430a652e2c652a3124333a653e2b2027630c692b20283165286326302e27282f')
print('OUT: %s' % (output2,), end=' ')
cryptopals.test(output2, input1)
#!/usr/bin/env python3
import cryptopals
key = b'YELLOW SUBMARINE'
initial = cryptopals.pcksPad(b'Loki the cat')
blockSize = 16
iv = bytes([0] * blockSize)
encryptedECB = cryptopals.encryptAESDataECB(initial, key)
encryptedCBC = cryptopals.encryptAESDataCBC(initial, key, iv)
decryptedECB = cryptopals.decryptAESDataECB(encryptedECB, key)
decryptedCBC = cryptopals.decryptAESDataCBC(encryptedCBC, key, iv)
print('Initial = %s' % (initial, ))
print('Encrypted ECB = %s' % (encryptedECB, ))
print('Encrypted CBC = %s' % (encryptedCBC, ), end=' ')
cryptopals.test(encryptedECB, encryptedCBC)
print('Decrypted ECB = %s' % (decryptedECB, ), end=' ')
cryptopals.test(decryptedECB, initial)
print('Decrypted CBC = %s' % (decryptedCBC, ), end=' ')
cryptopals.test(decryptedCBC, initial)
cipherdata = cryptopals.loadBase64File('10.txt')
plaindata = cryptopals.decryptAESDataCBC(cipherdata, key, iv)
print('plaindata = %s' % (plaindata.decode('utf-8'), ))
#!/usr/bin/env python3
import cryptopals
initial = b'YELLOW SUBMARINE' # 16 bytes
expected = b'YELLOW SUBMARINE\x04\x04\x04\x04' # 20 bytes
print('Initial = %s' % (initial, ))
print('Expected = %s' % (expected, ), end=' ')
cryptopals.test(cryptopals.pcksPad(initial, 20), expected)
#!/usr/bin/env python3.6
import cryptopals
input1 = '1c0111001f010100061a024b53535009181c'
input2 = '686974207468652062756c6c277320657965'
xorOut = cryptopals.xorHexStrings(input1, input2)
print('IN1: %s' % (input1, ))
print('IN2: %s' % (input2, ))
print('XOR: %s' % (xorOut, ), end=' ')
cryptopals.test(xorOut, '746865206b696420646f6e277420706c6179')
#!/usr/bin/env python3
import cryptopals
input1 = "this is a test".encode('utf-8')
input2 = "wokka wokka!!!".encode('utf-8')
distance = cryptopals.getHammingDistance(input1, input2)
print('IN1: %s' % (input1,))
print('IN2: %s' % (input2,))
print('OUT: %d' % (distance,), end=' ')
cryptopals.test(distance, 37)
cipherdata = cryptopals.loadBase64File('6.txt')
foundKey = cryptopals.breakRepeatingKeyXor(cipherdata)
print('KEY: %s' % (foundKey.decode('utf-8'),))
print('DEC: %s' % (cryptopals.repeatingXor(cipherdata, foundKey).decode('utf-8'),))