摘要
为解决车联网通信架构中心实体负载过大和数据安全风险高等问题,提出一种基于区块链的车联网节点数据安全通信模型(DSCM)。首先,考虑车联网数据的实时性和车辆节点的移动性,设计了普通数据和紧急数据的区块结构和数据包格式,并针对节点存储问题提出一种节点数据更新方法。其次,提出一种基于云服务器和区块链的节点身份认证方案,解决用户的身份验证和隐私问题。然后,在实用拜占庭容错(PBFT)共识机制的基础上,提出改进动态PBFT机制。最后,对DSCM模型进行评估,分析DSCM模型的特点、车辆节点面临的问题和DSCM模型的解决方案,证明了该模型的有效性。
A blockchain-based Data Security Communication Model(DSCM)for IoVs nodes is proposed to solve the problem of overloading centralized system and high risk of data security of IoV communication structure.Firstly,considering the real-time of data and mobility of vehicles,blockchain structure and data package format are designed for generic data and emergency data,and a node data update method is proposed for node storage.Secondly,this paper proposes a node identity authentication scheme based on cloud servers and blockchain to solve the user authentication and privacy issues.Further more,based on Practical Byzantine Fault Tolerance(PBFT)consensus mechanism,the paper proposes an improved dynamic PBFT mechanism.In the end,the paper analyzes the characteristics of DSCM model for evaluation,and analyzes the problems faced by vehicles nodes and the solutions of DSCM which proves validity of the model.
作者
任条娟
郑佳莹
陈友荣
陈秋霞
刘半藤
Ren Tiaojuan;Zheng Jiaying;Chen Yourong;Chen Qiuxia;Liu Banteng(Changzhou University,Changzhou 213164;Zhejiang Shuren University,Hangzhou 310015)
出处
《汽车技术》
CSCD
北大核心
2021年第5期30-35,共6页
Automobile Technology
基金
浙江省公益技术应用研究项目(LGF19F010005)
浙江省自然科学基金项目(LQ18F030006)
浙江树人大学省属高校基本科研业务费专项资金项目(2020XZ005)。
关键词
区块链
车联网
共识机制
安全通信模型
Blockchain
IoVs
Consensus mechanism
Security communication model
