量子密钥分配实际安全性思考  

Research on the Practical Security of Quantum Key Distribution

作　　者：李大伟 LI Dawei(Anhui Qasky Quantum Science and Technology Co.,Ltd.,Wuhu Anhui 241002,China;Anhui Quantum-Safe Engineering Technical Research Center,Wuhu Anhui 241002,China)

机构地区：[1]安徽问天量子科技股份有限公司,安徽芜湖241002 [2]安徽省量子安全工程技术中心,安徽芜湖241002

出　　处：《信息安全与通信保密》2022年第9期57-64,共8页Information Security and Communications Privacy

摘　　要：量子密钥分配的安全性包括协议的安全性和实际系统的安全性,协议理论上的信息论安全性已经得到了完整的证明,然而实际系统由于器件存在着非理想性,会导致产生各种安全性漏洞,如何分析和应对实际系统安全性是量子密钥分配技术走向应用所面临的重要课题,总结了量子密钥分配安全性的进展情况和面临的难点问题,并对未来的研究方向进行了展望。The security of quantum key distribution(QKD)includes theoretical security of protocol and practical security of real system respectively.The unconditional security of QKD protocol has been theoretically proved completely,but the imperfect device used in actual QKD system will lead to various security vulnerabilities.How to analyze and fight against the practical security vulnerabilities of actual QKD system is an important subject facing the application of quantum key distribution.This paper summarizes the progress and difficult problems of quantum key distribution security,and looks forward to the future research directions.

关 键 词：量子密钥分配 理论安全性 实际安全性 设备无关 

分 类 号：TN918.1[电子电信—通信与信息系统]