Files
crypto-hw3/part1/bob.py
T
2025-09-23 09:53:12 -05:00

19 lines
366 B
Python

from Crypto.Cipher import AES
from Crypto.Util.Padding import unpad
# Read Key
with open('key', 'rb') as f:
aes_key = f.read()
cipher = AES.new(aes_key, AES.MODE_CBC, iv=b'0'*16)
# Read message and decrypt
with open('ctext', 'rb') as f:
ciphertext = f.read()
plaintext = unpad(cipher.decrypt(ciphertext), 16).decode()
print(f'Plaintext: {plaintext}')