基于EPR纠缠对的量子保密通信技术探讨

Study on quantum secure communication based on EPR pairs

本文详细分析了量子密码系统与经典密码系统的区别,以及量子保密通信的发展历程和研究的必要性,并对3个基本量子密钥分发协议进行了描述;重点对EPR协议进行了分析和推导,介绍了相关的量子理论基础,研究了量子保密通信中的量子密钥分发的具体实现过程和量子身份认证的必要性,提出这两部分是量子保密通信系统的必要组成部分,并对量子保密通信技术现状和研究方向进行了探讨,为量子保密通信系统的设计提供参考。

The difference between classic secure communications with quantum secure communication is analyzed in details in this paper. The three basic protocols of quantum key distribution are described. EPR protocol is the emphases in this paper and is analyzed and deduced in details. The technologies of quantum key distribution and quantum authentication in quantum secure communication are studied and these two proportions are proved that they are necessary for quantum secure communication systems. The applications and developments of quantum cryptography are also discussed.