VANET中有条件的隐私保护认证协议研究

Research on conditional privacy-preserving protocol in VANET

为进一步满足有条件的隐私保护的需求,在保护安全性和研究椭圆曲线上双线性映射的基础上,设计了群签名方案,提出了一种新的基于位置信息的隐私保护认证协议。对提出的协议进行了详细的安全分析和性能分析。分析表明,该协议需要更少的OBU存储空间、消息验证时间以及更高的验证成功率。

This paper utilized bilinear pairings on elliptic curve to design a group signature scheme in VANET,and proposed a novel location-based conditional privacy-preserving protocol in VANET to address the issue on privacy preservation.It demonstrated the merits of the proposed protocol through extensive security analysis and performance discussion.Analysis results demonstrate that the proposed protocol can provide fast anonymous authentication and privacy tracking while minimizing the required storage for short-time anonymous keys and improving the success rate.