Encryption using pycrypto, AES/ECB/PKCS5Padding

AESCipher.py

from Crypto.Cipher import AES
from Crypto import Random

BS = 16
pad = lambda s: s + (BS - len(s) % BS) * chr(BS - len(s) % BS)
unpad = lambda s: s[0:-ord(s[-1])]


class AESCipher:
    def __init__(self, key):
        """
        Requires hex encoded param as a key
        """
        self.key = key.decode("hex")

    def encrypt(self, raw):
        """
        Returns hex encoded encrypted value!
        """
        raw = pad(raw)
        cipher = AES.new(self.key, AES.MODE_ECB)
        return cipher.encrypt(raw).encode("hex")

    def decrypt(self, enc):
        """
        Requires hex encoded param to decrypt
        """
        enc = enc.decode("hex")
        cipher = AES.new(self.key, AES.MODE_ECB)
        return unpad(cipher.decrypt(enc))


if __name__ == "__main__":
    key = "140b41b22a29beb4061bda66b6747e14"
    ciphertext = "6c94326b6b726eb7c48b049a6e2fcf008a10ea14b603e6a6a38709b77d2af03f119dc26f9522e3ae43f1a5e0c5bb8493"
    key = key[:32]
    decryptor = AESCipher(key)
    plaintext = decryptor.decrypt(ciphertext)
    print "%s" % plaintext

GG !