crypto.py 文件源码

def encrypt(self, key, iv, data):
        if len(key) != self.key_size:
            raise EncrError('Key must be of the indicated size {}'.format(self.key_size))
        _cipher = _Cipher(self._algorithm(key), modes.CBC(iv), backend=self._backend)
        encryptor = _cipher.encryptor()
        return encryptor.update(data) + encryptor.finalize()