Since the presented protocol is based on information theoretic model, it is unconditionally secure.

由于此协议是在信息论通信模型下，所以协议是无条件安全的。

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Quantum cryptography and computer cryptography are two branches of cryptography at the same age. Quantum cryptography based on the quantum mechanics can achieve unconditionally secure communications.

量子密码是与计算机密码处于同一时代的密码学分支，它以量子力学为基础，能实现无条件安全的保密通信。

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Unconditionally secure authentication codes with arbitration protects against deception from the transmitter and from the receiver as well as those from the opponent.

带仲裁的认证码既要防止敌手的欺骗，又要防上收方和发方的互相欺骗。

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