Random Coefficient-Moving Product Based Wireless Key Generation  

作　　者：Lu Xinjin Lei Jing Li Wei 

机构地区：[1]College of Electronic Science and Technology,National University of Defense Technology,Changsha 410073,China [2]State Key Laboratory of Complex Electromagnetic Environment Effects on Electronics and Information System,Luoyang 471003,China [3]China South Industries Group Corporation,Zhi Yuan Institute,310012,China

出　　处：《China Communications》2025年第2期199-212,共14页中国通信(英文版)

基　　金：supported in part by the National Natural Science Foundation of China(Numbers 62171445,62471477 and 62201592).

摘　　要：The physical layer key generation technique provides an efficient method,which utilizes the natural dynamics of wireless channel.However,there are some extremely challenging security scenarios such as static or quasi-static environment,which lead to the low randomness of generated keys.Meanwhile,the coefficients of the static channel may be dropped into the guard space and discarded by the quantization approach,which causes low key generation rate.To tackle these issues,we propose a random coefficient-moving product based wireless key generation scheme(RCMP-WKG),where new random resources with remarkable fluctuations can be obtained by applying random coefficient and by moving product on the legitimate nodes.Furthermore,appropriate quantization approaches are used to increase the key generation rate.Moreover,the security of our proposed scheme is evaluated by analyzing different attacks and the eavesdropper’s mean square error(MSE).The simulation results reveal that the proposed scheme can achieve better performances in key capacity,key inconsistency rate(KIR)and key generation rate(KGR)compared with the prior works in static environment.Besides,the proposed scheme can deteriorate the MSE performance of the eavesdropper and improve the key generation performance of legitimate nodes by controlling the length of the moving product.

关 键 词：moving product random coefficient static environment wireless key generation 

分 类 号：TN918.4[电子电信—通信与信息系统]