这是我的实现，并通过一些修复为我工作，并用32字节和iv到16字节增强了密钥和秘密短语的对齐方式：
import base64import hashlibfrom Crypto import Randomfrom Crypto.Cipher import AESclass AESCipher(object): def __init__(self, key): self.bs = AES.block_size self.key = hashlib.sha256(key.enpre()).digest() def encrypt(self, raw): raw = self._pad(raw) iv = Random.new().read(AES.block_size) cipher = AES.new(self.key, AES.MODE_CBC, iv) return base64.b64enpre(iv + cipher.encrypt(raw.enpre())) def decrypt(self, enc): enc = base64.b64depre(enc) iv = enc[:AES.block_size] cipher = AES.new(self.key, AES.MODE_CBC, iv) return self._unpad(cipher.decrypt(enc[AES.block_size:])).depre('utf-8') def _pad(self, s): return s + (self.bs - len(s) % self.bs) * chr(self.bs - len(s) % self.bs) @staticmethod def _unpad(s): return s[:-ord(s[len(s)-1:])]
