车载自组网中信息通信隐私保护的研究  

Research on the information communication privacy protection for VANET

作　　者：赵佳[1,2] 李春燕[1,2] 刘吉强 张强[3] 韩磊[4] Zhao Jia;Li Chunyan;Liu Jiqiang;Zhang Qiang;Han Lei(Beijing Key Laboratory of Security and Privacy in Intelligent Transportation,Beijing Jiaotong University,Beijing 100044;School of Computer and Information Technology,Beijing Jiaotong University,Beijing 100044;Beijing Municipal Public Security Bureau Network Security and Security Corps,Beijing 100029;Science and Technology on Information Assurance Laboratory,Beijing 100071)

机构地区：[1]北京交通大学智能交通数据安全与隐私保护技术北京市重点实验室,北京100044 [2]北京交通大学计算机与信息技术学院,北京100044 [3]北京市公安局网络安全保卫总队,北京100029 [4]信息保障技术重点实验室(国家级),北京100071

出　　处：《网络空间安全》2020年第7期28-37,共10页Cyberspace Security

基　　金：中央高校基本科研业务费(项目编号:2018JBM016);国家自然科学基金青年科学基金(项目编号:61502030);信息保障技术重点实验室开放基金(项目编号:KJ-17-107)。

摘　　要：车载自组网通过信息通信实现信息共享,频繁进行信息通信会产生两方面的安全问题:一是车辆身份隐私泄露;二是通信消息隐私泄露。针对此类问题,文章提出了一种车载自组网中信息通信隐私保护方案。该方案采用假名的方式实现车辆身份的隐私保护,采用数字签名和通信消息区块链式结构,实现通信消息的隐私保护。实验表明,实现了车载自组网信息通信过程中车辆身份隐私保护和通信消息隐私保护,并将车辆存储私钥、公钥的存储开销和追溯通信消息的时间开销均降低到常数级。Information sharing is realized in VANET through information communication,and frequent information communication will have two security problems:one is the leakage of vehicle identity privacy information,and the other is the leakage of communication message privacy information.Aiming at this problem,this paper proposes a privacy protection scheme for information communication in VANET.In this paper,the privacy protection of vehicle identity is realized by using pseudonym,and the privacy protection of communication messages is realized by using digital signature and storing communication message in blockchain.Experiments show that the vehicle identity privacy protection and communication message privacy protection in VANET are realized,besides the storage overhead of private key and public key as well as the time cost of tracing communication messages are reduced to a constant.

关 键 词：隐私保护 信息通信 区块链 车载自组网 椭圆曲线签名 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]