隐私保护的VANET警告消息发布协议  

Privacy protection of warning message publishing protocol in VANET

作　　者：刘辉 刘鑫衍[1] 许艳 仲红[1] 王梦[1] LIU Hui;LIU Xinyan;XU Yan;ZHONG Hong;WANG Meng(School of Computer Science and Technology,Anhui University,Hefei 230601,China;School of Electronics and Information Engineering,Anhui University,Hefei 230601,China)

机构地区：[1]安徽大学计算机科学与技术学院,安徽合肥230601 [2]安徽大学电子信息与工程学院,安徽合肥230601

出　　处：《通信学报》2021年第8期120-129,共10页Journal on Communications

基　　金：国家自然科学基金资助项目(No.61702005)。

摘　　要：针对交管部门向车辆发布违章消息的问题,提出了一种隐私保护的警告消息发布协议。在该协议中,交通管理部门可以根据车辆的真实身份获取车辆假名,并通过车辆假名向VANET中的车辆发布警告消息。所提协议采用椭圆曲线密码体制,构造了轻量级的警告消息发布和接收过程。此外,所提协议实现了条件隐私保护,能够有效保护警告消息接收车辆的身份隐私。最后,安全性分析表明,所提协议可以满足VANET的安全要求。性能分析表明,所提协议有着较低的计算开销和通信开销。Aiming at the problem that the traffic control department publishes violation messages to vehicles,a privacy protection warning message publishing protocol was proposed,where transportation manage department could obtain ve-hicle’s pseudonym according to its real identity and send warning message to vehicles based on its pseudonym in VANET.Elliptic curve cryptography was used to construct a lightweight warning message publishing and receiving process.Fur-thermore,the conditional privacy protection was realized,which could effectively protect the identity privacy of the re-ceiving vehicle.Security analysis shows that the proposed protocol can meet the security requirements of VANET.Per-formance analysis shows that the protocol protocol has lower computational overhead and communication overhead.

关 键 词：车载自组织网络 警告消息发布 条件隐私保护 椭圆曲线密码体制 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]