基于无线多径信道参数的密钥生成方案  

Key Generation Scheme Based on Wireless Multipath Channel Parameter

作　　者：张新蜜 徐明[1] 

机构地区：[1]上海海事大学信息工程学院,上海201306

出　　处：《计算机工程》2018年第2期177-181,共5页Computer Engineering

基　　金：国家自然科学基金(61202370);中国博士后科学基金(2014M561512);上海市教育委员会科研创新项目(14YZ110)

摘　　要：由于无线网络具有广播的特征,使得信号传输过程中会出现信息泄露的状况,信息安全存在隐患。为此,利用正交频分复用系统产生传输信号,结合无线信道的互异性及无线多径信道的随机性,从信道中提取包络和相位作为参数,提出一种基于无线多径信道参数的密钥方案。实验结果表明,该方案增加了密钥一致性,使密钥不一致率降低,同时密钥生成的信道特性增加了信息的安全性。Because of the broadcast characteristics of wirless network,in the process of signal transmission,information leakage often occurs,so that there are hidden dangers of information security.In view of this,an Orthogonal Frequency Division Multiplexing（OFDM） system is proposed to generate transmission signals.In combination with the diversity of wireless channels and the inherent randomness of wireless multipath channels,an envelope and phase are extracted from the channel as parameters to generate wireless channel based on wireless multipath channel parameters Key scheme.Experimental results show that this scheme increases the key consistency,reduces the key inconsistency rate,and increases the security of the information by the channel characteristics of key generation.

关 键 词：多径信道 密钥生成 信道参数 模拟信号 混沌理论 

分 类 号：TP399[自动化与计算机技术—计算机应用技术]