如果讯息是私用的，它会在传送之前先行加密，并在接收时解密。

If a message is private, it is encrypted before it is sent and is decrypted when it is received.

youdao

如果讯息是私用的，它会在传送之前先行加密，并在接收时解密。

If a message is private, it is encrypted before it is sent and is decrypted when it is received.

youdao