多方量子密钥管理协议设计与安全性分析  

Design and Security Analysis of Quantum Key Management Protocol for Multi-User Scene

作　　者：宋曦 王玉亭 王瑜曈 肖博 陈康杰 SONG Xi;WANG Yu-ting;WANG Yu-tong;XIAO Bo;CHEN Kang-jie(State Grid Gansu Provincial Electric Power Company Information and Communication Company,Lanzhou Gansu 730050,China;State Grid Xintong Yili Technology Co.,Ltd.,Xiamen Fujian 350003,China)

机构地区：[1]国网甘肃省电力公司信息通信公司,甘肃兰州730050 [2]国网信通亿力科技有限责任公司,福建厦门350003

出　　处：《通信技术》2020年第1期150-155,共6页Communications Technology

基　　金：国网甘肃省电力公司信息通信公司科技项目“基于量子保密通信技术的研究与应用”（No.52272317000G）~~

摘　　要：针对多个用户之间多功能、多任务的保密通信需求,利用d级Bell态和猫态的纠缠交换,设计了一种能在一次执行过程中同时实现密钥生成、密钥分发和密钥备份功能的新型量子密钥管理(Quantum Key Management,QKM)协议,并将协议从面向两个管理者和两个用户的特定方案推广到含有L个管理者和N个用户的一般情形。最后,详细论证了该协议的安全性能。Aiming at the requirement of multi-function and multi-task secure communication among multiple users,a new Quantum Key Management(QKM)protocol is designed by using the entanglement swapping of d-level Bell state and cat state,which can simultaneously realize key generation,key distribution and key backup in one execution process.The protocol is extended from a specific scheme for two managers and two users to one containing L managers and N users.Finally,the security performance of the protocol is demonstrated in detail.

关 键 词：量子密钥管理(QKM) BELL基测量 纠缠交换 多任务 

分 类 号：TN918[电子电信—通信与信息系统]