A Quantum Key Re-Transmission Mechanism for QKD-Based Optical Networks

作     者：WANG Hua ZHAO Yongli WANG Dajiang WANG Jiayu WANG Zhenyu 

作者机构：State Key Laboratory of Information Photonics and Optical CommunicationsBeijing University of Posts and Telecommunications100876China Skill Transfer Management DepartmentZTE CorporationBeijing 100000China 

出 版 物：《ZTE Communications》 (中兴通讯技术（英文版）)

年 卷 期：2018年第16卷第3期

页      面：52-58页

学科分类：11[军事学] 1105[军事学-军队指挥学] 07[理学] 0839[工学-网络空间安全] 08[工学] 070201[理学-理论物理] 110505[军事学-密码学] 0803[工学-光学工程] 110503[军事学-军事通信学] 0702[理学-物理学] 

基　　金：supported in part by NSFC project(Grant No.61571058and 61601052) Science and Technology Project of State Grid Corporation of China:The Key Technology Research of Elastic Optical Network(Grant No.526800160006) China Postdoctoral Science Foundation Project(2016M600970) ZTE Industry-Academia-Research Cooperation Funds 

主　　题：optical networks security QKD re-transmission 

摘      要：Due to the vulnerability of fibers in optical networks, physical- layer attacks targeting photon splitting, such as eavesdrop- ping, can potentially lead to large information and revenue loss. To enhance the existing security approaches of optical networks, a new promising technology, quantum key distribu- tion （QKD）, can securely encrypt services in optical networks, which has been a hotspot of research in recent years for its characteristic that can let clients know whether infomlation transmission has been eavesdropped or not. In this paper, we apply QKD to provide secret keys for optical networks and then introduce the architecture of QKD based optical net- work. As for the secret keys generated by QKD in optical net- works, we propose a re-transmission mechanism by analyzing the security risks in QKD-based optical networks. Numerical results indicate that the proposed re-transmission mechanism can provide strong protection degree with enhanced attack protection. Finally, we illustrated some future challenges in QKD-based optical networks.