针对V2X通信的安全可信的管理模型设计  

Design of Security Credential Management Model for V2X Communication

作　　者：魏爽[1] 江荣旺[1] WEI Shuang;JIANG Rongwang(School of Information&Intelligence Engineering,University of Sanya,Sanya Hainan 572000)

机构地区：[1]三亚学院信息与智能工程学院,海南三亚572000

出　　处：《软件》2021年第10期12-15,53,共5页Software

基　　金：2020海南省高等学校科学研究项目(Hnky2020-50);海南省自然科学基金青年基金项目(620QN287)。

摘　　要：为了平衡车联网通信中网络安全与隐私保护的冲突问题,针对V2X通信,设计了一种基于PKI密码体制的安全可信的管理模型(Security Credential Management Model,SCMM)。为了建立可信通信,对参与通信的车辆与基础设施均会颁发数字证书,通过证书对消息进行签名,同时,考虑到用户隐私保护的问题,签名使用可溯源的假名。利用密钥扩展方法实现车辆任意数量的假名证书需求,同时实现恶意用户或故障车辆的有效证书地快速撤销。SCMM的主要目标是最大限度地平衡网络安全与隐私保护之间的矛盾,同时解决车联网通信中所需大量假名证书的需求,以及证书的快速撤销问题。In order to balance the conflict between security and privacy protection in vehicle network communication,a high security management mode based on PKI Cryptosystem is designed for V2X communication.Considering the need of secure communication,the digital signature is attached to the message,at the same time,considering the problem of protecting the privacy of the user,the signature in the digital signature uses the pseudonym of traceable source.The butterfly key expansion method is used to realize the requirement of any number of pseudonymous certificates and the fast revocation of valid certificates for malicious users or malfunctioning vehicles.The analysis shows that the model can balance the contradiction between security and privacy,and solve the problem of a large number of pseudonymous certificates and the quick revocation of certificates.

关 键 词：V2X通信 PKI密码体制 密钥扩展 隐私保护 

分 类 号：TN929.5[电子电信—通信与信息系统]