Efficient Privacy Protection Authentication Scheme in Vehicle Ad Hoc Networks

Abstract

In this paper, a group signature-based vehicle information sharing scheme for vehicular ad hoc networks with effective privacy protection is proposed. The design goals are achieved by technologies such as distributed management, HMAC, batch signature verification and cooperative authentication. First, divide the entire network into different domains for local management. Second, HMAC is used instead of time-consuming revocation list checking, and the integrity of messages prior to bulk authentication is ensured to avoid the number of invalid messages in bulk verification. Finally, we also use the cooperative certification method to further improve the efficiency of the program. By adopting the above technology, our proposed solution can meet the verification requirements. Security and performance analysis shows that our proposed solution enables efficient group signature-based authentication while maintaining conditional privacy.