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Simple Python example of AES in ECB mode.
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from hashlib import md5 | |
from base64 import b64decode | |
from base64 import b64encode | |
from Crypto.Cipher import AES | |
# Padding for the input string --not | |
# related to encryption itself. | |
BLOCK_SIZE = 16 # Bytes | |
pad = lambda s: s + (BLOCK_SIZE - len(s) % BLOCK_SIZE) * \ | |
chr(BLOCK_SIZE - len(s) % BLOCK_SIZE) | |
unpad = lambda s: s[:-ord(s[len(s) - 1:])] | |
class AESCipher: | |
""" | |
Usage: | |
c = AESCipher('password').encrypt('message') | |
m = AESCipher('password').decrypt(c) | |
Tested under Python 3 and PyCrypto 2.6.1. | |
""" | |
def __init__(self, key): | |
self.key = md5(key.encode('utf8')).hexdigest() | |
def encrypt(self, raw): | |
raw = pad(raw) | |
cipher = AES.new(self.key, AES.MODE_ECB) | |
return b64encode(cipher.encrypt(raw)) | |
def decrypt(self, enc): | |
enc = b64decode(enc) | |
cipher = AES.new(self.key, AES.MODE_ECB) | |
return unpad(cipher.decrypt(enc)).decode('utf8') | |
## | |
# MAIN | |
# Just a test. | |
msg = input('Message...: ') | |
pwd = input('Password..: ') | |
print('Ciphertext:', AESCipher(pwd).encrypt(msg)) |
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i added this part: (for decrypt)
thanks 🤗