mirror of
https://github.com/github/codeql.git
synced 2025-12-18 09:43:15 +01:00
59edd18c34
This PR was rebased on newest main, but was written a long time ago when all the framework test-files were still in experimental. I have not re-written my local git-history, since there are MANY updates to those files (and I dare not risk it).
37 lines
1.1 KiB
Python
37 lines
1.1 KiB
Python
# https://pycryptodome.readthedocs.io/en/latest/src/cipher/aes.html
|
|
from Crypto.Cipher import AES
|
|
|
|
import os
|
|
|
|
key = os.urandom(256//8)
|
|
iv = os.urandom(16)
|
|
|
|
# ------------------------------------------------------------------------------
|
|
# encrypt/decrypt
|
|
# ------------------------------------------------------------------------------
|
|
|
|
|
|
print("encrypt/decrypt")
|
|
|
|
secret_message = b"secret message"
|
|
|
|
padding_len = 16 - (len(secret_message) % 16)
|
|
padding = b"\0"*padding_len
|
|
|
|
cipher = AES.new(key, AES.MODE_CBC, iv=iv)
|
|
# using separate .encrypt calls on individual lines does not work
|
|
whole_plantext = secret_message + padding
|
|
encrypted = cipher.encrypt(whole_plantext) # $ CryptographicOperation CryptographicOperationAlgorithm=AES CryptographicOperationInput=whole_plantext
|
|
|
|
print("encrypted={}".format(encrypted))
|
|
|
|
print()
|
|
|
|
cipher = AES.new(key, AES.MODE_CBC, iv=iv)
|
|
decrypted = cipher.decrypt(encrypted) # $ CryptographicOperation CryptographicOperationAlgorithm=AES CryptographicOperationInput=encrypted
|
|
|
|
decrypted = decrypted[:-padding_len]
|
|
|
|
print("decrypted={}".format(decrypted))
|
|
assert decrypted == secret_message
|