基于群签名的前向安全VANET匿名认证协议  

Forward Security Anonymous Authentication Protocol Based on Group Signature for Vehicular Ad Hoc Network

作　　者：岳笑含[1] 惠明亨 王溪波[1] YUE Xiao-han;HUI Ming-heng;WANG Xi-bo(School of Information Science and Engineering,Shenyang University of Technology,Shenyang 110870,China)

机构地区：[1]沈阳工业大学信息科学与工程学院,沈阳110870

出　　处：《计算机科学》2018年第B11期382-388,共7页Computer Science

基　　金：辽宁省教育厅高等学校优秀人才支持计划(LJQ2015081);辽宁省科技厅博士科研启动基金(201601166)资助

摘　　要：车载自组织网络在提高交通安全和效率方面得到广泛应用。然而,其中仍然存在着通信信任和用户隐私保护问题。许多现有认证协议都需要验证者从远程机构下载最新的撤销列表,这大大增加了远程中心的负担。为了解决这些问题,基于群签名方案,利用分散群模型和完全子树方法提出了新的认证协议。提出的协议在验证阶段无需获取最新的撤销列表,只需获取最新的时间即能验证,具有前向安全性、撤销高效性、匿名性、不可伪造性、不可诬陷性、可追踪性等特点。Vehicular Ad Hoc network is widely used in improving traffic safety and efficiency.However,there is still a problem of communication trust and user privacy protection.Many existing authentication protocols require that certi-fiers download up-to-date revocation lists from remote center,which greatly increase the remote center’s workload.In this paper,in order to solve these problems,a new authentication protocol based on group signature scheme was proposed by combining the decentralized group model and the complete sub-tree method.In this protocol,the verifier can verify a signature by getting the latest time,without having to obtain the latest revocation list,with forward security,effective revocation,anonymity,unforgeability,non-frameability and traceability.

关 键 词：群签名 车载自组织网络 匿名认证 前向安全 可追踪 

分 类 号：TP309.07[自动化与计算机技术—计算机系统结构]