• 中国计算机学会会刊
  • 中国科技核心期刊
  • 中文核心期刊

计算机工程与科学

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基于无证书代理重签名的车载自组网消息认证方案

杨小东1,2,杨平1,李燕1,刘婷婷1,王彩芬1   

  1. (1.西北师范大学计算机科学与工程学院,甘肃 兰州 730070;2.密码科学技术国家重点实验室,北京 100878)
  • 收稿日期:2016-01-15 修回日期:2016-09-30 出版日期:2018-01-25 发布日期:2018-01-25
  • 基金资助:

    国家自然科学基金(61662069,61262057);甘肃省科技计划项目(145RJDA325,1506RJZA130);国家档案局科技项目计划(2014-X-33);兰州市科技计划项目(2013-4-22);中国博士后科学基金(2017M610817);西北师范大学青年教师科研能力提升计划项目(NWNU-LKQN-14-7)

A message authentication scheme for VANET
based on certificateless proxy re-signature

YANG Xiao-dong1,2,YANG Ping1,LI Yan1,LIU Ting-ting1,WANG Cai-fen1   

  1. (1.College of Computer Science & Engineering,Northwest Normal University,Lanzhou 730070;
    2.State Key Laboratory of Cryptology,Beijing 100878,China)
  • Received:2016-01-15 Revised:2016-09-30 Online:2018-01-25 Published:2018-01-25

摘要:

基于代理重签名和无证书公钥密码体制,提出了一个安全的车载自组网消息认证方案。认证中心利用代理重签名技术,可转换车载单元对消息的签名为路边单元的签名,从而降低了根据签名识别车辆身份的风险,实现通信消息的匿名性。采用无证书公钥密码体制将各实体的私钥分为两部分,有效解决了车载自组网中的证书管理与密钥托管问题。如果车辆发布虚假消息,认证中心能准确追溯到车辆的真实身份,并召回违法车辆。与Huang方案相比,新方案具有较高的安全性和较低的通信开销。

 

关键词: 车载自组网, 无证书, 代理重签名, 消息认证, 不可伪造性

Abstract:

Based on proxy re-signature and certificateless public key cryptography, a message authentication scheme for vehicular ad hoc network (VANET) is presented. By using the proxy re-signature technology, the trusted authority can convert a signature generated by on-board unit into one from the road-side unit on the same message. Hence, it not only effectively reduces the risk of tracking vehicle according to signature, but also ensures anonymous message communication in VANET. If the vehicle releases false news, the trusted authority can accurately track the true identity of the vehicle and recall illegal vehicles. Moreover, compared with Huang scheme, the proposal has higher security and lower communication overhead.
 

Key words: vehicular ad-hoc network, certificateless, proxy re-signature, message authentication, unforgeability