def main():
enc = Encryptor()
output = enc.encrypt('A' * 1024)
bytes = str2bytes(output)
# print bytes
keysizes = findKeysize(bytes)
distance, keysize = keysizes[0]
print keysize
input = 'A' * (keysize - 1)
chs = []
print 'bytes'
while True:
block = len(chs) / keysize
print len(chs), block, 'input:', input
target = enc.encrypt(input)[block * keysize:(block + 1) * keysize]
# print len(target)
baseInput = input + ''.join(chs)
for byte in range(256):
ch = chr(byte)
testInput = baseInput + ch
test = enc.encrypt(testInput)[block * keysize:(block + 1) *
keysize]
if test == target:
print ch, byte
chs.append(ch)
break
else:
print 'no byte found'
break
if len(input) == 0:
input = 'A' * (keysize - 1)
else:
input = input[1:]
print ''.join(chs)
def main():
enc = Encryptor()
output = enc.encrypt('A' * 1024)
bytes = str2bytes(output)
# print bytes
keysizes = findKeysize(bytes)
distance, keysize = keysizes[0]
print keysize
input = 'A' * (keysize - 1)
chs = []
print 'bytes'
while True:
block = len(chs) / keysize
print len(chs), block, 'input:', input
target = enc.encrypt(input)[block * keysize:(block + 1) * keysize]
# print len(target)
baseInput = input + ''.join(chs)
for byte in range(256):
ch = chr(byte)
testInput = baseInput + ch
test = enc.encrypt(testInput)[block * keysize:(block + 1) * keysize]
if test == target:
print ch, byte
chs.append(ch)
break
else:
print 'no byte found'
break
if len(input) == 0:
input = 'A' * (keysize - 1)
else:
input = input[1:]
print ''.join(chs)
#!/usr/bin/env python from util import pkcs7, str2bytes input = 'YELLOW SUBMARINE' padded = pkcs7(input, 20) print padded print str2bytes(padded)
