Python RandGen.getTwist Examples

Example #1

File: RNGStream.py Project: mwolotsky/Matasano-Crypto-Challenges

def Trace(val, index, cipherText):
    forward = cipherText[index + 1:]
    plainText = chr(ord(cipherText[index]) ^ val)
    for c in forward:
        orig = un.unTwist8(val)
        next = rnd.getNext8(orig, index)
        val = rnd.getTwist(next)
        index += 1
        plainText += chr((ord(c) ^ val))
    back = cipherText[0:index]
    return plainText

Example #2

File: RNGStream.py Project: mwolotsky/Matasano-Crypto-Challenges

def Trace(val, index, cipherText):
    forward = cipherText[index + 1 :]
    plainText = chr(ord(cipherText[index]) ^ val)
    for c in forward:
        orig = un.unTwist8(val)
        next = rnd.getNext8(orig, index)
        val = rnd.getTwist(next)
        index += 1
        plainText += chr((ord(c) ^ val))
    back = cipherText[0:index]
    return plainText