重庆邮电大学学报（自然科学版）2026，Vol.38Issue(2)：196-203,8.DOI:10.3979/j.issn.1673-825X.202504090080
区块链的轻量级车联网身份认证方案
Lightweight blockchain-based identity authentication scheme for internet of vehicles
摘要
Abstract
To address security challenges in group communication within the Internet of Vehicles(IoV),such as low authentication efficiency and high latency in key updates,this study proposes a lightweight blockchain-based identity authentication scheme.The scheme achieves efficient and secure group communication through a threefold mechanism.First,a lightweight identity authentication mechanism is designed,in which long-term pseudonyms,public keys of urban buses,and random numbers are used to randomize vehicle pseudonyms,thereby reducing the storage burden on third-party authorities while ensuring vehicle privacy and unlinkability of communication behaviors.Second,an enhanced blockchain-based verifiable authentication framework is introduced,where smart contracts enable transparent identity management by binding digital tags generated by third-party private keys with vehicle information,forming a tamper-resistant authentication chain.Third,leveraging the confusion characteristics of Rule 30 cellular automata,a dynamic key generation algorithm is developed to support millisecond-level key updates.Security analysis and experimental results demonstrate that the proposed scheme satisfies stringent security requirements,including anonymity,traceability,forward secrecy,and backward secrecy,while effectively reducing both computational and communication overhead.关键词
区块链/身份认证/元胞自动机/动态密钥更新Key words
blockchain/identity authentication/cellular automata/dynamic key update分类
信息技术与安全科学引用本文复制引用
陈乔松,胡杰,耿梓源,曾瑞,朴昌浩..区块链的轻量级车联网身份认证方案[J].重庆邮电大学学报（自然科学版）,2026,38(2):196-203,8.基金项目
国家重点研发计划项目(2022YFE0101000) National Key Research and Development Program of China(2022YFE0101000) （2022YFE0101000）
