| 基于匿名互换的车联网安全与隐私保护机制 |
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| 引用本文： | 王景欣,王钺,耿军伟,袁坚,冯振明. 基于匿名互换的车联网安全与隐私保护机制[J]. 清华大学学报(自然科学版), 2012, 0(5): 592-597 |
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| 作者姓名： | 王景欣 王钺 耿军伟 袁坚 冯振明 |
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| 作者单位： | 清华大学电子工程系;北京市电力公司输电公司 |
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| 基金项目： | 国家“九七三”重点基础研究发展规划(2007CB307100,2007CB307105) |
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| 摘 要： | 针对车联网用户安全与隐私保护问题,提出一种基于匿名互换的用户安全与隐私保护机制。该机制提出构建可以匿名互换的社团———Mix-Crowd,并基于组密钥机制实现了保证基本安全需求下的匿名互换。基于实际数据分析讨论Mix-Crowd划分规则对机制性能的影响,并采用熵衡量该机制提供的不可连接性程度。理论分析表明:该机制下系统的最大熵独立于匿名互换次数,即该机制可以用较少的匿名互换次数和较小的组规模实现较高的安全性。
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| 关 键 词： | 计算机网络安全 匿名互换 不可连接性 组密钥 |
Secure and privacy-preserving scheme based on pseudonyms exchanges for VANET |
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| WANG Jingxin,WANG Yue,GENG Junwei,YUAN Jian,FENG Zhenming. Secure and privacy-preserving scheme based on pseudonyms exchanges for VANET[J]. Journal of Tsinghua University(Science and Technology), 2012, 0(5): 592-597 |
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| Authors: | WANG Jingxin WANG Yue GENG Junwei YUAN Jian FENG Zhenming |
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| Affiliation: | 1(1.Department of Electronic Engineering,Tsinghua University,Beijing 100084,China; 2.Power Transmission Company,Beijing Power, Beijing 100068,China) |
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| Abstract: | The security and privacy of vehicular Ad-hoc networks(VANET) is improved by allowing vehicles to exchange current valid pseudonyms.The transfer of pseudonyms and the security requirements are achieved by harmonizing the group signature.The scheme parameters settings are analyzed in simulations with the unlinkability measured by the entropy.Tests show that the scheme gives the same level of confusion to an adversary with less pseudonyms and smaller groups than previous schemes which means that the scheme provides better unlinkability and efficiency. |
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| Keywords: | network security pseudonyms exchange unlinkability group signature |
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