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Secret key establishm ent w ith in w ireless term ina ls u tiliz in g physical layer in fo rm a tion o f w ireless channel to ensure the security o f m obile environm ent has received w ide attention. H ow eve r, generating group secret key among m ultip le w ireless devices fo r secure com m unication in rea lity environm ent remains a challenge. T h is paper proposed a group secret key establishm ent scheme based on centra l node pairw ise-generating strategies under the sta r topo logy in wireless ne tw ork. Compared w ith the ex is ting group secret key extrac tion m ethod using the d ifference o f received signal streng th (R S S ) among the w ireless devices in the g roup , we gave a e xp lic it analysis and a specific numerical result on the achieva-ble group secret key rate o f each one. I t shows th a t ou r scheme ou tperfo rm s th a t o f generating group key by le­ veraging the d ifference o f RSS on key rate.

基于成对生成策略的无线网络群密钥产生及其分析 (Group Secret Key Generation and Analysis in Wireless Network Based on Pairwise-generating Strategies).