Python AES encryption without extra module

Question

Is it possible to encrypt/decrypt data with AES without installing extra modules? I need to send/receive data from C#, which is encrypted with the System.Security.Cryptography reference.

UPDATE I have tried to use PyAES, but that is too old. I updated some things to make that work, but it didn't. I've also can't install because it latest version is 3.3 while my version is 3.4.

Answer 1

I'm using Cryptography library.

Cryptography is an actively developed library that provides cryptographic recipes and primitives. It supports Python 2.6-2.7, Python 3.3+ and PyPy.

Here is an example of how to use that library:

>>> import os
>>> from cryptography.hazmat.primitives.ciphers import Cipher, algorithms, modes
>>> from cryptography.hazmat.backends import default_backend
>>> backend = default_backend()
>>> key = os.urandom(32)
>>> iv = os.urandom(16)
>>> cipher = Cipher(algorithms.AES(key), modes.CBC(iv), backend=backend)
>>> encryptor = cipher.encryptor()
>>> ct = encryptor.update(b"a secret message") + encryptor.finalize()
>>> decryptor = cipher.decryptor()
>>> decryptor.update(ct) + decryptor.finalize()
'a secret message'