Abstract:

Aiming at the privacy protection problem and message reliability problem in Vehicular Ad Hoc NETwork(VANET), a scheme for reliable message authentication and signature based on bilinear pair and pseudonym is proposed. The scheme uses self-generated pseudonym to sign each message, which can protect the user’s privacy and be verified efficiently at the same time. A priori counter measure for improving message reliability is given. The security and efficient analysis is also proposed.

Key words: vehicular network, privacy protection, pseudonym mechanism, message authentication, bilinear pair

摘要：

针对车载网络消息发布和认证中存在的车辆隐私性保护和消息可靠性问题，提出一个消息认证及签署机制。给出一种利用自产生伪名进行消息签名的方案，能够兼顾车辆隐私保护与有效身份认证，并通过多个用户的共同签署，提高发布消息的可靠性。同时对该方案的安全性和效率进行分析。

关键词: 车载网络, 隐私保护, 伪名机制, 消息认证, 双线性对

CLC Number: 

• TP309