cipher text decoder | Python Fiddle

C1 = "1010110010011110011111101110011001101100111010001111011101101011101000110010011000000101001110111010010111100100111101001010000011000001010001001001010000000010101001000011100100010011011011011011010111010011000101010111111110010011010111001001010101110001111101010000001011110100000000010010111001111010110000001101010010110101100010011111111011101101001011111001101111101111000100100001000111101111011011001011110011000100011111100001000101111000011101110101110010010100010111101111110011011011001101110111011101100110010100010001100011001010100110001000111100011011001000010101100001110011000000001110001011101111010100101110101000100100010111011000001111001110000011111111111110010111111000011011001010010011100011100001011001101110110001011101011101111110100001111011011000110001011111111101110110101101101001011110110010111101000111011001111"

C2 = "1011110110100110000001101000010111001000110010000110110001101001111101010000101000110100111010000010011001100100111001101010001001010001000011011001010100001100111011010011111100100101000001001001011001110010010100101011111010001110010010101111110001100010100001110000110001111111001000100001001010100011100100001101010101111000100001111101111110111001000101111111101011001010000100100000001011001001010000101001110101110100001111100001011101100100011000110111110001000100010111110110111010010010011101011111111001011011001010010110100100011001010110110001001000100011011001110111010010010010110100110100000111100001111101111010011000100100110011111011001010101000100000011111010010110111001100011100001111100100110010010001111010111011110110001000111101010110101001110111001110111010011111111010100111000100111001011000111101111101100111011001111"

def AxorB(C1, C2):
    s = ""
    for i in range(len(C1)):
        if C1[i] == C2[i]:
            s += '0'
        else:
            s += '1'
    return s

s = AxorB(C1,C2)

#8bit ASCII
x = ''
for i in range(len(s)):
    x += s[i]
    if (i % 7) == 0:
       x += '0'

#create letter as key
def letterkey(letterbit):
    tword = ""
    for i in range(121):
        tword += letterbit
    return tword

def letterkey2(letterbit):
    tword = ""
    for i in range(60):
        tword += letterbit
    tword += "00000000"
    return tword

def letterkey3(letterbit):
    tword = ""
    for i in range(40):
        tword += letterbit
    tword += "00000000"
    return tword
def letterkey4(letterbit):
    tword = ""
    for i in range(30):
        tword += letterbit
    tword += "00000000"
    return tword
    
#create keyword/letters (011101000110100001100101)
# theword = letterkey3("011101000110100001100101")
# andword = letterkey3("011000010110111001100100")
# anword = letterkey2("0110000101101110")
# spacetheword = letterkey4("00100000011101000110100001100101")
# tword = letterkey("01110100")
# hword = letterkey("01101000")
# eword = letterkey("01100101")
# aword = letterkey("01100001")
# nword = letterkey("01101110")
# dword = letterkey("01100100")
# oword = letterkey("01101111")
# iword = letterkey("01101001")
# gword = letterkey("01100111")
# lword = letterkey("01101100")
# cword = letterkey("01100011")
# rword = letterkey("01110010")
# uword = letterkey("01110101")

#phrase = "I am on a drug. It's called Charlie Sheen. -Charlie Sheen"
#phrase = "010010010010000001100001011011010010000001101111011011100010000001100001001000000110010001110010011101010110011100101110001000000100100101110100001001110111001100100000011000110110000101101100011011000110010101100100001000000100001101101000011000010111001001101100011010010110010100100000010100110110100001100101011001010110111000101110001000000010110101000011011010000110000101110010011011000110100101100101001000000101001101101000011001010110010101101110"
#phrase += phrase + phrase[:56]

####################################################################################################################
P11= []
for i in range(121):
	P11.append('')
P12 = P11
P13 = P11
P14 = P11
P21 = P11
P22 = P11
P23 = P11
P24 = P11
    
def a2b(a): 
    ai = ord(a) 
    return ''.join('01'[(ai >> x) & 1] for x in xrange(7, -1, -1))

firstchar = 32
lastchar = 126

def lookup(key, cur_pos):
	if key[cur_pos:cur_pos+7] == "00000000":
		return True
	return False

for i in range(firstchar, lastchar+1):	
	for j in range(firstchar, lastchar+1):
		bits1 = a2b(chr(i))
		bits2 = a2b(chr(j))
		wordkey1 = AxorB(x,letterkey(bits1))
		wordkey2 = AxorB(wordkey1,letterkey(bits2))
		for k in range(0,len(wordkey1),8):
			if lookup(wordkey, j) == True:
				P11[k/8] = chr(i)
				P12[k/8] = chr(i)
				P13[k/8] = chr(j)
				P14[k/8] = chr(j)
				P21[k/8] = chr(i)
				P22[k/8] = chr(j)
				P23[k/8] = chr(i)
				P24[k/8] = chr(j)
print P11
print P12
print P13
print P14
print P21
print P22
print P23
print P24

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