计算机工程2025，Vol.51Issue(10)：191-202,12.DOI:10.19678/j.issn.1000-3428.0069457
基于联盟链的分布式车联网节点信誉管理系统
Distributed Internet of Vehicles Node Reputation Management System Based on Consortium Chain
摘要
Abstract
With the development of intelligent transportation technologies,the exchange of information between vehicles has become increasingly frequent.Establishing an effective reputation management mechanism for the Internet of vehicles is important because it provides the foundation and guarantee for implementing various Internet of vehicles applications.This study proposes a hierarchical blockchain-based reputation management system to address issues such as the limited resources in the Internet of vehicles,low throughput of reputation management solutions,and poor recognition rates of malicious vehicles.The system considers the impact range of traffic data and designs a layered blockchain architecture to manage the data in a hierarchical manner,thereby achieving distributed storage of traffic data and reputation values and improving storage efficiency.By aggregating the credibility of messages and the reputation values of message source nodes,a Bayesian inference model is used to determine the authenticity of events.Using the Direct Acyclic Graph(DAG)blockchain structure to design reputation weight evaluation,the reputation value update algorithm is enriched and the management of reputation value is strengthened.Considering a scenario involving connected vehicles,the main node selection and consensus process of the traditional Practical Byzantine Fault Tolerance(PBFT)algorithm is improved,and an asset value based consensus committee selection strategy is proposed.Simulation results show that compared with existing schemes,the proposed method can effectively identifies false information and maintains a correct event judgment rate of over 91％,even when the proportion of malicious nodes reaches 30％.In terms of availability,transaction latency and throughput have significant advantages over the PBFT algorithm and some improved solutions,which can further expand the network scale.The proposed system is effective and feasible for the distributed trust management of the Internet of vehicles.关键词
车联网/区块链/信誉管理/共识机制/联盟链Key words
Internet of vehicles/blockchain/reputation management/consensus mechanism/consortium chain分类
信息技术与安全科学引用本文复制引用
刘代东,金睿,魏松杰..基于联盟链的分布式车联网节点信誉管理系统[J].计算机工程,2025,51(10):191-202,12.基金项目
工业和信息化部2020年工业互联网创新发展工程项目(TC200H01V). （TC200H01V）
