pycryptodome python 3.6.8 AES decryption

aes_decrypt.py

# Tested on Windows 10 with Python 3.6.8
# pycryptodome==3.10.1
# Tested with AES 128 but should work with others
# Based on https://stackoverflow.com/questions/12524994/encrypt-decrypt-using-pycrypto-aes-256 thread

from Crypto.Cipher import AES
from Crypto.Util.Padding import unpad

IV_ASCII = 'ffaaffaaffaaffaaffaaffaaffaaffaa' # example of 16 bytes len of ascii-represented hex string IV 
AES_KEY = '\xaa' * 16 # example of 16 bytes len binary key

with open('file.decrypted', 'wb') as ofd:
  with open('file.encrypted', 'rb') as ifd:
    iv = bytes.fromhex(IV_ASCII)
    cipher = AES.new(AES_KEY, AES.MODE_CBC, iv=iv)  # Setup cipher
    original_data = unpad(cipher.decrypt(ifd.read()), AES.block_size)  # Decrypt and then up-pad the result
    ofd.write(original_data)