面向新能源汽车能源交易系统的PoRT共识机制  

PoRT consensus mechanism for energy trading system of new energy vehicles

作　　者：张海波[1,2] 李佳琪 刘开健 李方伟 ZHANG Haibo;LI Jiaqi;LIU Kaijian;LI Fangwei(School of Communications and Information Engineering,Chongqing University of Posts and Telecommunications,Chongqing 400065,China;Chongqing Key Laboratory of Public Big Data Security Technology,Chongqing 401420,China)

机构地区：[1]重庆邮电大学通信与信息工程学院,重庆400065 [2]公共大数据安全技术重庆市重点实验室,重庆401420

出　　处：《通信学报》2025年第1期157-166,共10页Journal on Communications

基　　金：国家重点研发计划基金资助项目(No.SQ2023YFB250002402);国家自然科学基金资助项目(No.62371082,No.62271094);公共大数据安全技术重庆市重点实验室开放基金资助项目(No.CQKL-QJ202300002);重庆市留创计划创新类基金资助项目(No.cx2020059)。

摘　　要：针对新能源汽车的能源交易系统在交易过程中容易出现隐私泄露等交易安全问题,设计了一种区块链下基于旅行验证的信誉值证明共识机制。首先,可信机构选择RSU作为节点构建区块链网络。然后,车辆采用基于旅行验证的信誉值证明(PoRT),通过位置签名确定、行驶里程验证和信誉值判断与更新3个阶段保证分布式信誉值数据库的迭代更新,进而确保能源交易系统的可持续运行。实验结果表明,与使用其他共识机制的能源交易系统相比,所提机制在面对车联网中常见攻击时具有更高的安全性和更低的交易时延。A reputation value proof consensus mechanism based on travel verification under blockchain was designed to address privacy leakage and other transaction security issues that easily occurred in the energy trading system of new energy vehicles during the trading process.Firstly,the RSU was chosen by the trusted authority to serve as nodes for building the blockchain network.Then,the proof of reputation value based on travel verification(PoRT)was used to ensure the iterative update of the distributed reputation value database by the vehicle through three stages,location signature determination,mileage verification,reputation value judgment and update to ensure sustainable operation of the energy trading system.The experimental results show that compared with energy trading system using other consensus mechanisms,the proposed mechanism has higher security and lower transaction latency when facing common attacks in the Internet of vehicles.

关 键 词：车联网 区块链 能源交易 共识机制 

分 类 号：TN92[电子电信—通信与信息系统]