量子密钥分发网络的多路径密钥传输方法研究  

Research on Multipath Key Transmission in Quantum Key Distribution Networks

作　　者：徐雅斌[1,2] 陈淑娟 李艳平[2] XU Ya-bin;CHEN Shu-juan;LI Yan-ping(Key Laboratory of Internet Culture and Digital Dissemination Research,Beijing Information Science&Technology University,Chaoyang Beijing 100101;School of Computer,Beijing Information Science&Technology University,Chaoyang Beijing 100101)

机构地区：[1]北京信息科技大学网络文化与数字传播北京市重点实验室,北京朝阳100101 [2]北京信息科技大学计算机学院,北京朝阳100101

出　　处：《电子科技大学学报》2020年第2期276-282,共7页Journal of University of Electronic Science and Technology of China

基　　金：中央引导地方科技发展专项(Z171100004717002);网络文化与数学传播北京市重点实验室基金(ICDDX004);国家自然科学基金(61672101)。

摘　　要：为了有效提高量子密钥分发(QKD)网络中保密通信的安全性和效率,该文提出了一种多路径密钥传输方法。首先,根据节点对链路的贡献率和密钥新鲜度计算链路成本函数;然后,采用基于最小堆优化的多路径选择算法选择多条最优路径;最后,采用密钥分块传输形式实现密钥在多条最优路径上的同时传输。对比结果表明多路径密钥传输方法具有更高的安全性和传输效率。In order to improve the security and efficiency of secure communication in quantum key distribution(QKD)networks,this paper proposes a multipath key transmission method.Firstly,the link cost function is calculated according to the contribution rate of the node to the link and the freshness of the key.Secondly,the multipath selection algorithm based on minimum heap optimization is used to select the optimal paths.Finally,the key block transmission is applied to realize the simultaneous transmission of the key on multiple optimal paths.The experimental results show that the proposed multipath key transmission method is more secure and efficient.

关 键 词：密钥分块传输 链路成本函数 多路径路由选择 量子密钥分发网络 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]