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Encrypt & Decrypt using PyCrypto AES 256From http://stackoverflow.com/a/12525165/119849
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#!/usr/bin/env python | |
import base64 | |
from Crypto import Random | |
from Crypto.Cipher import AES | |
BS = 16 | |
pad = lambda s: s + (BS - len(s) % BS) * chr(BS - len(s) % BS) | |
unpad = lambda s : s[0:-s[-1]] | |
class AESCipher: | |
def __init__( self, key ): | |
self.key = hashlib.sha256(key.encode('utf-8')).digest() | |
def encrypt( self, raw ): | |
raw = pad(raw) | |
iv = Random.new().read( AES.block_size ) | |
cipher = AES.new( self.key, AES.MODE_CBC, iv ) | |
return base64.b64encode( iv + cipher.encrypt( raw ) ) | |
def decrypt( self, enc ): | |
enc = base64.b64decode(enc) | |
iv = enc[:16] | |
cipher = AES.new(self.key, AES.MODE_CBC, iv ) | |
return unpad(cipher.decrypt( enc[16:] )) | |
cipher = AESCipher('mysecretpassword') | |
encrypted = cipher.encrypt('Secret Message A') | |
decrypted = cipher.decrypt(encrypted) | |
print(encrypted) | |
print(decrypted) |
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pycrypto==2.6.1 |
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