一种面向车联网的高效条件匿名认证方案  

An efficient conditional anonymity authentication scheme for VANETs

作　　者：王青龙[1] 乔瑞 樊娜[1] 段宗涛[1] WANG Qinglong;QIAO Rui;FAN Na;DUAN Zongtao(School of Information Engineering,Chang’an University,Xi’an 710064,China)

机构地区：[1]长安大学信息工程学院

出　　处：《北京交通大学学报》2019年第5期80-86,共7页JOURNAL OF BEIJING JIAOTONG UNIVERSITY

基　　金：陕西省重点科技创新团队项目(2017KCT-29);陕西省重点研发计划(2017GY-072,2018GY-136,2018GY-022,2018GY-032);陕西省国际科技合作计划(2017KW-015);陕西省留学人员科技活动择优资助科技项目(2017023)~~

摘　　要：针对传统基于公钥基础设施(Public Key Infrastructure,PKI)的匿名证书方案需要更新的问题,提出一种车联网匿名证书分发机制,车辆从途经的路侧单元(Road Side Unit,RSU)获得临时匿名证书,并利用该证书进行消息广播.因而不存在复杂的证书管理问题,并且车辆在认证消息时也不需要耗时的证书撤销列表(Certificate Revocation List,CRL)检查,显著提高了认证效率.安全分析表明本文方案满足匿名性、不可关联性、可追踪性、撤销性及消息完整性,能够抵抗伪造攻击、假冒攻击和重放攻击,特别是与已有类似方案相比较,能够抵抗RSU的关联攻击.实验结果显示本文方案具有较高的计算效率,具有实际应用价值.Accoding to the traditional anonymous certificate schemes which are based on Public Key Infrastructure(PKI),anonymous certificates in the proposed scheme do need to be updated,this paper proposes an efficient anonymous certificate distribution mechanism for Vehicle Ad Hoc Networks(VANETs).A vehicle obtains a temporary anonymous certificate from the nearby Road Side Unit(RSU),and uses the certificate to broadcast messages.and vehicles also need not to check the Certificate Revocation List(CRL)which is time-consuming when authenticating messages,which significantly improves the authentication efficiency.The proposed scheme satis-fies anonymity,unlinkability,traceability,revocation and message integrity.Security analysis shows it can resist forgery attack,impersonation attack and replay attack.Moreover,in compari-son with existed similar schemes,it can also resist RSU linkage-attack.The experimental results show that the proposed scheme is computationally efficient and practicable.

关 键 词：车联网 匿名证书 认证 可追踪性 假冒攻击 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]