通信学报2018，Vol.39Issue(3)：86-94,9.DOI:10.11959/j.issn.1000-436x.2018036
面向物联网多跳中继系统的协作密钥生成方法
Cooperative secret key generation for multi-hop relaying systems in Internet of things
摘要
Abstract
The achievable key rate of secret key generation method in multi-hop relaying systems was relative low in In-ternet of things. A cooperative secret key generation algorithm based on network coding was proposed to improve the achievable key rate. Firstly, all the nodes send training sequences in turn to estimate the channels. After that the relays employ secure network coding technique to assist the two legitimate users to obtain the correlative observations of the same wireless channel, with nothing leakage about the channel information to the eavesdropper. Finally, the two legiti-mate users agreed on a common secret key directly over the public channel. Theoretical and simulation results validate the performance of the proposed secret key generation algorithm, and obtain that increasing the wireless transmission paths, se-lecting the transmission path with less hops and larger variance channels can further improve the achievable secret key rate.关键词
物理层安全/密钥生成/物联网/多跳中继系统/网络编码Key words
physical layer security/secret key generation/Internet of things/multi-hop relaying systems/network coding分类
信息技术与安全科学引用本文复制引用
肖帅芳,郭云飞,黄开枝,金梁..面向物联网多跳中继系统的协作密钥生成方法[J].通信学报,2018,39(3):86-94,9.基金项目
国家自然科学基金资助项目(No.61379006, No.61501516, No.61521003) （No.61379006, No.61501516, No.61521003）
国家高技术研究发展计划("863"计划)基金资助项目(No.2015AA01A708)The National Natural Science Foundation of China (No.61379006, No.61501516, No.61521003), The National High Technology Research and Development Program of China (863 Program) (No.2015AA01A708) （"863"计划）
