基于区块链的IoV隐私保护认证方案设计  

Blockchain-based privacy-preserving certificateless authentication scheme for Internet of Vehicles

作　　者：曾萍 陈志娟 马英杰 赵耿 Zeng Ping;Chen Zhijuan;Ma Yingjie;Zhao Geng(Dept.of Electronic&Communication Engineering,Beijing Electronic Science&Technology Institute,Beijing 100070,China;School of Telecommunication Engineering,Xidian University,Xi’an 710071,China)

机构地区：[1]北京电子科技学院电子与通信工程系,北京100070 [2]西安电子科技大学通信工程学院,西安710071

出　　处：《计算机应用研究》2021年第10期2919-2925,共7页Application Research of Computers

基　　金：国家自然科学基金资助项目(61772047);北京电子科技学院一流学科建设项目(3201017)。

摘　　要：传统车联网(Internet of Vehicles,IoV)身份认证系统普遍具有中心不可信的安全风险,而智联车又存在许多亟待解决的隐私安全问题。因此,借助区块链分布式、可溯源、不可窜改等特点,提出云链结合的可信分散式系统架构,基于该架构同时结合无证书的密码机制以及密钥隔离技术设计分布式身份认证协议。通过安全性分析表明,该方案安全性高、能满足车联网匿名身份认证的要求。同时与现有方案进行仿真对比表明,本方案具有更低的计算开销和通信成本,适用于实际的认证时延低和隐私保护的车联网环境中。The traditional identity authentication system of Internet of Vehicles generally has the security risk that the center is not trusted.However,there are many privacy security problems that need to be solved urgently.Therefore,with the help of blockchain distributed,traceable,tamper proof and other characteristics,this paper proposed a trusted distributed system architecture combined with cloud chain,and designed a distributed identity authentication protocol based on this architecture combined with certificateless cryptography mechanism and key isolation technology.The security analysis showed that the scheme had high security and could meet the requirements of anonymous identity authentication in the Internet of Vehicles.At the same time,compared with the existing schemes,the simulation results show that the proposed scheme has lower computation cost and communication cost,and is suitable for the actual environment with low authentication delay and privacy protection.

关 键 词：车联网 区块链 分布式认证 隐私保护 无证书 

分 类 号：TP39[自动化与计算机技术—计算机应用技术]