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#!/usr/bin/env python3 | |
from Crypto.Cipher import AES | |
import binascii | |
import argparse | |
parser = argparse.ArgumentParser(description='Test AES implem') | |
parser.add_argument('integers', metavar='aes_size', type=int, | |
help='Which AES mode (128/256)') | |
args = parser.parse_args() | |
if not(args.integers == 128 or args.integers == 256): | |
print("Incorrect AES size") | |
exit() | |
elif args.integers == 128: | |
keysize = 16 | |
else: | |
keysize = 32 | |
# Generate Key | |
key = bytes([ 0 for i in range(keysize)] ) | |
f = open("keyfile", "wb") | |
f.write(key) | |
# Generate Input with CMS padding | |
inputfile = bytes([ 0 for i in range(16)] ) | |
f = open("inputfile", "wb") | |
f.write(inputfile) | |
length = 16 - (len(inputfile) % 16) | |
inputfile += bytes([length])*length | |
cipher = AES.new(key, AES.MODE_ECB) | |
output = cipher.encrypt(inputfile) | |
f = open("output", "wb") | |
f.write(output) |
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