基于标签信号的物理层安全认证  

Physical Layer Authentication Based on Tag Signal

作　　者：宋华伟[1] 金梁[1] 张胜军[1] SONG Huawei;JIN Liang;ZHANG Shengjun(National Digital Switching System Engineering ＆ Technological R＆D Center,Zhengzhou 450002,Chin)

机构地区：[1]国家数字交换系统工程技术研究中心,郑州450002

出　　处：《电子与信息学报》2018年第5期1066-1071,共6页Journal of Electronics & Information Technology

基　　金：国家863计划项目(2015AA01A708)~~

摘　　要：该文提出一种基于叠加标签信号进行认证的新方法。利用合法通信双方预先共享密钥和信道具有短时互易性的优势,在发送方利用扩谱码和量化的信道值生成标签信号,并与通信信号叠加发送,在接收方能够检测并鉴别标签信号,而且不影响通信信号的正常解调。这种方法不需要复杂的密码算法,减小了通信过程中的计算量,而且能够有效地防范被动窃听和主动攻击。仿真结果表明,该方法有较高的实用价值。This paper proposes a new method of authentication based on piling up tag signal. Using the advantage of legality sides sharing a private key and having coherent channel state information in short time, the sender produces a tag signal from spread frequency code and measures channel state information, then overlaps the tag signal on the communicational signal, the receiver can detect the correct tag signal and demodulate the communicational signal. This method avoids using complex cryptographic algorithm, reduces the amount of calculation, and prevents passive eavesdropping and active attack effectively. Simulation results show that this method has high use value.

关 键 词：物理层安全 标签信号 认证 

分 类 号：TN918.91[电子电信—通信与信息系统]