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

Shuaifang XIAO; Yunfei GUO; Kaizhi HUANG; Liang JIN

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

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

Special Issue on Internet of Things and Its Security | 更新时间：2024-06-05

- Cooperative secret key generation for multi-hop relaying systems in Internet of things
- Journal on Communications Vol. 39, Issue 3, Pages: 86-94(2018)
- 作者机构：
  
  国家数字交换系统工程技术研究中心，河南郑州 450002
- 作者简介：
- 基金信息：
  
  The National Natural Science Foundation of China(61379006);The National Natural Science Foundation of China(61501516);The Innovation Group Program Project of National Natural Science Foundation of China(61521003);The National High Technology Research and Development Program of China (863 Program)(2015AA01A708)
- DOI：10.11959/j.issn.1000-436x.2018036
  CLC： TN918.82
- Online First：2018-03，
  
  Published：25 March 2018
- 稿件说明：
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Shuaifang XIAO, Yunfei GUO, Kaizhi HUANG, et al. Cooperative secret key generation for multi-hop relaying systems in Internet of things[J]. Journal on Communications, 2018, 39(3): 86-94.
DOI：

Shuaifang XIAO, Yunfei GUO, Kaizhi HUANG, et al. Cooperative secret key generation for multi-hop relaying systems in Internet of things[J]. Journal on Communications, 2018, 39(3): 86-94. DOI： 10.11959/j.issn.1000-436x.2018036.

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。

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.

关键词

Keywords

references

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