tunnelcrypto.py 文件源码

def encrypt_str(self, content, key, salt, salt_explicit):
        # return the encrypted content prepended with the
        # gcm tag and salt_explicit
        cipher = Cipher(algorithms.AES(key),
                        modes.GCM(initialization_vector=self._bulid_iv(salt, salt_explicit)),
                        backend=default_backend()
                        ).encryptor()
        ciphertext = cipher.update(content) + cipher.finalize()
        return struct.pack('!q16s', salt_explicit, cipher.tag) + ciphertext