tcp_transfer.py 文件源码

def initialization(self, key):
        key = base64.urlsafe_b64decode(key)
        k = key[:16]
        iv = key[16:28]
        cipher = Cipher(algorithms.AES(k), modes.GCM(iv),
                        backend=default_backend())
        self._decryptor = cipher.decryptor()
        self._encryptor = cipher.encryptor()
        self._last_packet = b""