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AntonKueltz/cryptopals8.py

Created December 22, 2014 08:19
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cryptopals8.py
from Crypto.Cipher import AES
def detect_ECB_mode(ctxt):
blocks = []
for block in range(len(ctxt) / AES.block_size):
start, end = block * AES.block_size, (block+1) * AES.block_size
blocks.append(ctxt[start:end])
return len(blocks) != len(set(blocks))
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