一种基于区块链和secGear框架的车联网认证协议  

An Internet of Vehicles Authentication Protocol Based on Blockchain and secGear Framework

作　　者：刘忻[1] 王家寅 杨浩睿 张瑞生[1] LIU Xin;WANG Jiayin;YANG Haorui;ZHANG Ruisheng(School of Information Science&Engineering,Lanzhou University,Lanzhou 730000,China)

机构地区：[1]兰州大学信息科学与工程学院,兰州730000

出　　处：《信息网络安全》2022年第1期27-36,共10页Netinfo Security

基　　金：中央高校基本科研业务费专项资金[lzujbky-2020-6];甘肃省科技计划项目[20YF3FA024];兰州市科技计划项目[2019-4-47]。

摘　　要：车联网中,身份认证是安全的前提与核心技术,其不仅能够对发送数据的车辆进行合法性验证,还可以协商出临时会话密钥,从而保护关键数据的机密性。文章将区块链应用于认证协议中,设计了一种基于区块链和secGear统一机密计算框架的车联网认证协议,在满足抗抵赖要求的同时实现了跨区域认证,并采用secGear框架实现了认证表的机密计算,进一步保护了认证表的安全。文章利用AVISPA仿真工具和非形式化安全分析证明了协议的安全性,并通过NS3仿真实验与其他方案进行对比分析,证明了该协议具有更好的安全性和适用性。In the Internet of vehicles,identity authentication is the prerequisite and core technology for security.It can not only verify the legality of the vehicle sending the data,but also negotiate a temporary session key to protect the confidentiality of key data.In this paper,the blockchain was applied to the authentication protocol,and a vehicle networking authentication protocol based on the blockchain and secGear unified confidential computing framework was designed.It met the non-repudiation requirements while achieving cross-regional authentication,and used the secGear framework to achieve the confidential calculation of the certification table,further protecting the security of the certification table.The AVISPA simulation tool and informal security analysis prove the security of this protocol,and use NS3 simulation experiment and comparative analysis to prove that this protocol has better applicability and advancement.

关 键 词：网络安全 车联网 区块链 认证协议 机密计算 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]