面向物联网多跳中继系统的协作密钥生成方法

doi:10.11959/j.issn.1000-436x.2018036

通信学报 ›› 2018, Vol. 39 ›› Issue (3): 86-94.doi: 10.11959/j.issn.1000-436x.2018036

• 论文Ⅰ：物联网与安全 • 上一篇下一篇

面向物联网多跳中继系统的协作密钥生成方法

肖帅芳,郭云飞,黄开枝,金梁

国家数字交换系统工程技术研究中心，河南郑州 450002

修回日期:2017-12-10 出版日期:2018-03-01 发布日期:2018-04-02
作者简介:肖帅芳（1989-），男，河南许昌人，国家数字交换系统工程技术研究中心博士生，主要研究方向为无线物理层安全、无线网络与信息安全等。|郭云飞（1963-），男，河南郑州人，国家数字交换系统工程技术研究中心教授、博士生导师，主要研究方向为新型网络体系结构、网络与信息安全等。|黄开枝（1973-），女，安徽滁州人，国家数字交换系统工程技术研究中心教授、博士生导师，主要研究方向为无线物理层安全、移动通信网络与信息安全等。|金梁（1969-），男，北京人，国家数字交换系统工程技术研究中心教授、博士生导师，主要研究方向为无线物理层安全、无线通信网络与信息安全等。
基金资助:
国家自然科学基金资助项目(61379006);国家自然科学基金资助项目(61501516);国家自然科学基金资助项目(61521003);国家高技术研究发展计划（“863”计划）基金资助项目(2015AA01A708)

Cooperative secret key generation for multi-hop relaying systems in Internet of things

Shuaifang XIAO,Yunfei GUO,Kaizhi HUANG,Liang JIN

National Digital Switching System Engineering and Technological R＆D Center,Zhengzhou 450002,China

Revised:2017-12-10 Online:2018-03-01 Published:2018-04-02
Supported by:
The National Natural Science Foundation of China(61379006);The National Natural Science Foundation of China(61501516);The National Natural Science Foundation of China(61521003);The National High Technology Research and Development Program of China (863 Program)(2015AA01A708)

摘要/Abstract

摘要：

针对物联网多跳中继系统中密钥生成方法速率低的问题，提出一种基于网络编码的协作密钥生成方法。在各节点完成信道估计后，中继节点采用安全网络编码技术辅助通信双方获取相同信道的估计值，同时辅助信息不泄露该信道的任何信息，最后通信双方直接在公共信道上协商得到相同的密钥。理论分析和仿真结果表明，该方法可以有效地提高可达密钥速率，同时增加传输路径，选取跳数少、信道变化大的传输路径，可以进一步提高可达密钥速率。

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

Abstract:

The achievable key rate of secret key generation method in multi-hop relaying systems was relative low in Internet 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 legitimate 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,selecting the transmission path with less hops and larger variance channels can further improve the achievable secret key rate.

Key words: physical layer security, secret key generation, Internet of things, multi-hop relaying systems, network coding

中图分类号:

TN918.82

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.

Shuaifang XIAO,Yunfei GUO,Kaizhi HUANG,Liang JIN. Cooperative secret key generation for multi-hop relaying systems in Internet of things[J]. Journal on Communications, 2018, 39(3): 86-94.

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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

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