摘要
自高速公路取消省界收费后,跨省车辆通行的数据在多个省份之间存在的分散存储、数据共享流程繁琐和隐私泄露等问题日益凸显。为解决上述问题,该文提出一种基于区块链的高速公路联网收费数据共享方案,基于区块链链接省部两级联网中心,使其共同维护同一个账本。并采取对称加密和非对称加密相结合的方式对链上数据进行处理,以实现数据的安全存储和用户的隐私保护。同时利用智能合约实现跨省结算和数据的实时共享。为提高链上数据的检索效率,基于数据表加密技术实现链上链下数据的安全同步存储和访问。实验结果表明,该方案不仅能够满足高速公路车辆通行数据共享的一致性、安全性、可信性要求,而且其区块链存储和查询TPS完全满足安徽省高速公路联网收费场景下的实际需求。未来随着通行数据不断增长的情况,可采用增加节点的方式提升业务处理能力,性能和功能优势更加突出。
Following the elimination of provincial boundary tolls on expressways,the concerns of decentralized storage of inter-provincial vehicle traffic data among numerous provinces,burdensome data sharing protocols,and privacy breaches have become more prevalent.Therefore,we propose a blockchain-based expressway network toll data sharing system that connects provincial and ministerial two-level networking centers using blockchain technology so that they can maintain the same ledger collectively.The combination of symmetric and asymmetric encryption is used to process data on the blockchain in order to guarantee safe data storage and user anonymity.Simultaneously,smart contracts are utilized to realize real-time interprovincial settlement and data sharing.To improve the retrieval efficiency of data on the blockchain,secure synchronous storage and access to data on and off the blockchain are implemented using data table encryption technology.The experiments demonstrate that it not only meets the consistency,security,and credibility requirements for the exchange of expressway vehicle traffic data,but its blockchain storage and query TPS also meet the actual requirements of the Anhui Province expressway networking toll scene.When traffic data continues to increase in the future,the capacity of data storing and processing can be expanded by adding nodes,and its performance and functional benefits will increase.
作者
于欣海
黄欣哲
梁海
丁勇
YU Xin-hai;HUANG Xin-zhe;LIANG Hai;DING Yong(Anhui Expressway Network Operation Co.,Ltd.,Hefei 230031,China;Guilin University of Electronic Technology,Guilin 541004,China)
出处
《计算机技术与发展》
2023年第10期51-58,共8页
Computer Technology and Development
基金
国家自然科学基金(62172119)
广西自然科学基金(2019GXNSFGA245004)。
关键词
区块链技术
智能合约
联网收费
数据共享
隐私保护
blockchain technology
smart contract
online charging
data sharing
privacy protection
