BCGS: Blockchain-assisted privacy-preserving cross-domain authentication for VANETs

【Author】 Chen, Biwen; Wang, Zhongming; Xiang, Tao; Yang, Jiyun; He, Debiao; Choo, Kim-Kwang Raymond

【Source】VEHICULAR COMMUNICATIONS

【影响因子】8.373

【Abstract】Vehicular Ad-Hoc Networks (VANETs) have significantly enhanced driving safety and comfort by leveraging vehicular wireless communication technology. Secure authentication among vehicles in VANETs is an important requirement, but there are various limitations in many existing authentication protocols, for example, in terms of privacy protection, malicious entity tracking, and cross-domain authentication. In response, we first reconstruct a secure and effective short group signature scheme for realizing anonymous authentication and traceable identity within a domain. We then propose a secure blockchain-based privacy-preserving cross-domain authentication protocol for VANETs, namely BCGS, by integrating both blockchain and group signature. In BCGS, blockchain is leveraged to facilitate trusted information sharing and consequently supports cross-domain authentication among vehicles, and the group signature scheme is used to provide conditional privacy protection. Our comprehensive security and performance evaluations demonstrate that BCGS outperforms other similar approaches in terms of security, computation, and storage costs.(c) 2023 Elsevier Inc. All rights reserved.

【Keywords】VANETs; Privacy -preserving authentication; Cross -domain; Group signature; Blockchain

【发表时间】2023 JUN

【收录时间】2023-04-21

【文献类型】理论模型

【主题类别】

区块链应用-实体经济-车辆领域