Exclusive Or Function | Python Fiddle

c1 = "1010110010011110011111101110011001101100111010001111011101101011101000110010011000000101001110111010010111100100111101001010000011000001010001001001010000000010101001000011100100010011011011011011010111010011000101010111111110010011010111001001010101110001111101010000001011110100000000010010111001111010110000001101010010110101100010011111111011101101001011111001101111101111000100100001000111101111011011001011110011000100011111100001000101111000011101110101110010010100010111101111110011011011001101110111011101100110010100010001100011001010100110001000111100011011001000010101100001110011000000001110001011101111010100101110101000100100010111011000001111001110000011111111111110010111111000011011001010010011100011100001011001101110110001011101011101111110100001111011011000110001011111111101110110101101101001011110110010111101000111011001111"
c2 = "1011110110100110000001101000010111001000110010000110110001101001111101010000101000110100111010000010011001100100111001101010001001010001000011011001010100001100111011010011111100100101000001001001011001110010010100101011111010001110010010101111110001100010100001110000110001111111001000100001001010100011100100001101010101111000100001111101111110111001000101111111101011001010000100100000001011001001010000101001110101110100001111100001011101100100011000110111110001000100010111110110111010010010011101011111111001011011001010010110100100011001010110110001001000100011011001110111010010010010110100110100000111100001111101111010011000100100110011111011001010101000100000011111010010110111001100011100001111100100110010010001111010111011110110001000111101010110101001110111001110111010011111111010100111000100111001011000111101111101100111011001111"
words = ['was', 'for', 'on', 'are', 'as', 'with', 'his', 'they', 'I', 'at', 'be', 'this', 'have', 'from', 'or', 'one', 'had', 'by', 'word', 'but', 'not', 'what', 'all', 'were', 'we', 'when', 'your', 'can', 'said', 'there', 'use', 'an', 'each', 'which', 'she', 'do', 'how', 'their', 'if', 'will', 'up', 'other', 'about', 'out', 'many', 'then', 'them', 'these', 'so', 'some', 'her', 'would', 'make', 'like', 'him', 'into', 'time', 'has', 'look', 'two', 'more', 'write', 'go', 'see', 'number', 'no', 'way', 'could', 'people', 'my', 'than', 'first', 'water', 'been', 'call', 'who', 'oil', 'its', 'now', 'find', 'long', 'down', 'day', 'did', 'get', 'come', 'made', 'may', 'part', 'state']
def xor(char1, char2):
    if char1 == '0':
        int1 = 0
    else:
        int1 = 1
        
    if char2 == '0':
        int2 = 0
    else:
        int2 = 1
        
    return int1 ^ int2

def stringtoBinaryString(string, bits):
    s = ""
    for p in range(0, len(string)):
        c = bin(ord(string[p]))
        c = c[2:len(c)]
        while len(c) < bits:
            c = "0" + c
        s += c
    return s

def xorStrings(string1, string2):
    length = len(string1)
    pos = 0
    xorArray = [None]*length

while pos < length:
        xorArray[pos] = xor(string1[pos], string2[pos])
        pos = pos + 1
        
    return xorArray

def bitArrayToBitString(bitArray):
    s = ""
    for p in range(0, len(bitArray)):
        if bitArray[p] == 0:
            s += "0"
        else:
            s += "1"
    return s

def arraytoString(array, bits):
    s = ""
    c = 0
    for p in range(0, len(array)):
        c = c + (array[p] << (bits - (p % bits) - 1))
        if(p % 7 == 6):
            if c == 13:
                s += "!!!CARRIAGE RETURN!!!!"
            else:
                s += chr(c)
            c = 0
    return s

def guessKeyPart(guessWord, string1, string2, bits):
    guessString = stringtoBinaryString(guessWord, bits)
    for p in range(0, len(string1) - len(guessString), bits):
        guessedKey = xorStrings(guessString, string1[p:p+len(guessString)])
        guessedKeyString = bitArrayToBitString(guessedKey)
        senseString = xorStrings(guessedKeyString, string2[p:p+len(guessString)])
        print (str(p / bits) + " " + arraytoString(senseString, bits))

guessKeyPart("I visualize a time when we will be to robots what dogs are to humans, and I'm rooting for the machines.  (Claude Shannon)", c1, c2, 7)

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