基于矢量量化的高效随机物理层密钥提取方案

doi:10.3969/j.issn.0372-2112.2016.02.005

电子学报 ›› 2016, Vol. 44 ›› Issue (2): 275-281.DOI: 10.3969/j.issn.0372-2112.2016.02.005

基于矢量量化的高效随机物理层密钥提取方案

李鑫, 李兴华, 杨丹, 马建峰

西安电子科技大学计算机学院, 陕西西安 710071

收稿日期:2014-07-09 修回日期:2015-02-28 出版日期:2016-02-25
- 作者简介:
- 李鑫男,1989年生于山东省潍坊市,在读硕士研究生,研究方向为无线物理层安全、安卓安全.E-mail:xdulixin@163.com;李兴华 男,1978年生于河南省南阳市,博士,教授,博士生导师.研究方向包括网络与信息安全、隐私保护、云计算等.E-mail:xhli1@mail.xidian.edu.cn;杨丹女,1989年生于陕西省咸阳市,硕士.研究方向为无线物理层安全.E-mail:danyang1989@gmail.com;马建峰 男,l963年生于陕西省西安市,博士,教授,博士生导师.研究方向包括信息安全、编码理论、密码学等.E-mail:jfma@mail.xidian.edu.cn
- 基金资助:
- 国家自然科学基金 (No.U1135002,No.61372075,No.61202389,No.61100230,No.61309016); 国家密码发展基金 (No.MMJJ201201004); 地理信息国家重点实验室开放课题 (No.SKLGIE2013-M-4-1)

HRVQ:A High-Speed Random Key Extraction Scheme Based on Vector Quantization

LI Xin, LI Xing-hua, YANG Dan, MA Jian-feng

School of Computer Science and Technology, Xidian University, Xi'an, Shaanxi 710071, China

Received:2014-07-09 Revised:2015-02-28 Online:2016-02-25 Published:2016-02-25

摘要/Abstract

摘要：

针对现有的物理层密钥生成方法中存在的生成速率偏低、误码率高等问题,借助无线信号接收信号强度RSS,提出了基于矢量量化的高效随机物理层密钥提取方案(HRVQ).该方案通过不一致性去除减少通信双方不一致的信道特征值,利用矢量量化将信道信息转化为0、1比特流,并通过模糊提取器进行纠错和随机性增强处理.实验表明:该方案在密钥生成速率方面达到了284%的比特生成率,并且在实现了零误码率的同时保证了生成密钥的随机性.

关键词: 物理层安全, 信息论安全, 密钥提取, 矢量量化, 模糊提取

Abstract:

To solve the dilemma that a high bit generation rate and a low probability of bit disagreement can't be achieved simultaneously in current physical layer key extraction schemes, a high-speed random key extraction scheme based on vector quantization (HRVQ) which just employs the RSS of Wi-Fi signal is proposed.First, the inconsistent RSS measurements between the two communication parties were reduced by inconsistency removal to achieve low bit disagreement rate.Then, the vector quantization was introduced to accelerate the extraction of bit streams from channel information and achieve high bit generation rate.Last, fuzzy extractor was employed to achieve adequate randomness and zero bit disagreement rate.The result of experiments indicates that our scheme outperforming the best scheme of the state-of-the-art can reach a 284% bit generation rate with a zero bit disagreement rate and a guaranteed randomness.

Key words: physical layer security, information theory security, key extraction, vector quantization, fuzzy extractor

中图分类号:

TP393.08

李鑫, 李兴华, 杨丹, 马建峰. 基于矢量量化的高效随机物理层密钥提取方案[J]. 电子学报, 2016, 44(2): 275-281.

LI Xin, LI Xing-hua, YANG Dan, MA Jian-feng. HRVQ:A High-Speed Random Key Extraction Scheme Based on Vector Quantization[J]. Acta Electronica Sinica, 2016, 44(2): 275-281.

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基于矢量量化的高效随机物理层密钥提取方案

HRVQ:A High-Speed Random Key Extraction Scheme Based on Vector Quantization

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