Secret Key Generation Based on Two-Way Randomness for TDD-SISO System

作     者：Shengjun Zhang Liang Jin Yangming Lou Zhou Zhong 

作者机构：National Digital Switching System Engineering&Technological Research CenterZhengzhou 450002China 

出 版 物：《China Communications》 (中国通信（英文版）)

年 卷 期：2018年第15卷第7期

页      面：202-216页

核心收录：

学科分类：11[军事学] 1105[军事学-军队指挥学] 0839[工学-网络空间安全] 08[工学] 110505[军事学-密码学] 110503[军事学-军事通信学] 

基　　金：supported by National Natural Science Foundation of China(61521003,61501516,61471396,61401510) Postdoctoral Science Foundation of China(2016M592990) 

主　　题：secret key generation physical layer security information reconciliation information theory 

摘      要：A novel secret key generation(SKG)method based on two-way randomness is proposed for TDD-SISO *** legitimate transceivers mutually transmit their own random signal via reciprocal wireless channel,then the multiplication of transmitted and received signal is used as common randomness to generate secret *** quasi-static channel,the theoretical SKG rates(SKGRs)of the three SKG methods,namely wireless channel based,one-way randomness and two-way randomness,are derived and ***,two practical SKG schemes based on twoway randomness,Scheme-1bit and Scheme-3bit,are completely designed and ***,Scheme-1bit applies to low signal to noise ratio(SNR)scenarios and achieves 0.13~0.86bit/T_s SKGR and 10^(-2)~10^(-5) level secret key outage probability(SKOP),while Scheme-3bit fits high SNR situation and obtains 0.93~1.35bit/T_s SKGR and 10^(-3)~10^(-4) level *** last,the national institute of standards and technology(NIST)test is conducted to evaluate the secret key randomness(SKRD)and the test results show that both of the proposed schemes have passed the test.