python中的AES-128 CBC加密

有了Python3,你可以使用 PyCryptodome , binascii 和 base64 .

from base64 import b64encode, b64decode
from binascii import unhexlify

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

iv = "7bde5a0f3f39fd658efc45de143cbc94"
password = "3e83b13d99bf0de6c6bde5ac5ca4ae68"
msg = "this is a message"

print(f"IV: {iv}")
print(f"PWD: {password}")
print(f"MSG: {msg}")

# Convert Hex String to Binary
iv = unhexlify(iv)
password = unhexlify(password)

# Pad to AES Block Size
msg = pad(msg.encode(), AES.block_size)
# Encipher Text
cipher = AES.new(password, AES.MODE_CBC, iv)
cipher_text = cipher.encrypt(msg)

# Encode Cipher_text as Base 64 and decode to String
out = b64encode(cipher_text).decode('utf-8')
print(f"OUT: {out}")

# Decipher cipher text
decipher = AES.new(password, AES.MODE_CBC, iv)
# UnPad Based on AES Block Size
plaintext = unpad(decipher.decrypt(b64decode(out)), AES.block_size).decode('utf-8')
print(f'PT: {plaintext}')

你可以看到更多:

1. AES-128 CBC decryption in Python
2. Python Encrypting with PyCrypto AES