重庆邮电大学学报（自然科学版）2025，Vol.37Issue(4)：540-553,14.DOI:10.3979/j.issn.1673-825X.202501190027
面向车联网的高效安全无证书批量认证方案
An efficient and secure certificate-free batch authentication scheme for the internet of vehicles
摘要
Abstract
Open communication among vehicles and between vehicles and infrastructure in the internet of vehicles(IoV)introduces significant privacy and security risks.With increasing traffic density,authentication authorities often discard en-tire lists of failed batch authentication messages to maintain real-time performance,potentially resulting in the loss of criti-cal information.To address these issues,this paper proposes a certificate-free batch authentication scheme tailored for IoV.The pseudonyms used during vehicle communications are jointly generated by the vehicles and a trusted authority,ensuring vehicle anonymity while allowing real identity traceability.A dynamic vehicle ranking update method based on Bayesian op-timization is introduced to enhance efficiency.By combining batch authentication with an optimized message search algo-rithm,the scheme enables rapid identification of malicious messages and traceability of their origin without discarding legiti-mate ones.Security analysis demonstrates that the proposed scheme effectively resists various types of attacks and satisfies anonymity and unlinkability requirements.Under the random oracle model,it can withstand both Type Ⅰ and Type Ⅱ adver-sarial attacks.Experimental results show that the scheme outperforms existing methods in terms of computational and com-munication overhead.关键词
车联网/无证书/批量认证/恶意消息查询Key words
internet of vehicles/certificate-free/batch authentication/malicious message query分类
信息技术与安全科学引用本文复制引用
王练,罗楠楠..面向车联网的高效安全无证书批量认证方案[J].重庆邮电大学学报（自然科学版）,2025,37(4):540-553,14.基金项目
重庆邮电大学科研基金项目(A2020-212) Research Foundation Project of Chongqing University of Posts and Telecommunications(A2020-212) （A2020-212）
