车载网中一种基于区块链的隐私保护数据聚合系统  

A Blockchain-based Privacy-preserving Data Aggregation System for Vehicular Networks

作　　者：杨睿成 董国芳[1,2] 徐正楠 Yang Ruicheng;Dong Guofang;Xu Zhengnan(School of Electrical Information Technology,Yunnan Minzu University,Kunming 650500;Yunnan Key Laboratory of Unmanned Autonomous System(Yunnan Minzu University),Kunming 650500)

机构地区：[1]云南民族大学电气信息工程学院,昆明650500 [2]云南省无人自主系统重点实验室(云南民族大学),昆明650500

出　　处：《信息安全研究》2025年第4期367-376,共10页Journal of Information Security Research

基　　金：国家自然科学基金项目(61662089);云南民族大学2024年硕士研究生科研创新基金项目(2024KY121)。

摘　　要：针对车载网中数据聚合面临的隐私风险及挑战,提出了一种安全的车载网中基于区块链的安全匿名数据聚合方案.方案将云计算与区块链相融合,设计了一种基于区块链的隐私保护数据聚合系统,可以帮助车载网实现高效且安全的数据收集和数据分析任务.方案中利用密钥托管弹性保证了系统中密钥的安全性,防止以往密钥由第三方独自生成所导致的安全问题;通过2次数据聚合实现了细粒度的数据聚合,为车载网的云服务提供了有效支持.通过安全性分析和性能评估验证了该方案的安全性,并证明了该方案具有更高的计算效率和通信效率.Aiming at the privacy risks and challenges of data aggregation in vehicular networks,this paper proposes a secure and anonymous data aggregation scheme based on blockchain in vehicular networks.The scheme integrates cloud computing with blockchain and designs a blockchain-based data aggregation system that enables efficient and secure data collection and analysis in vehicular networks.The solution uses key escrow resilience to ensure the security of the keys in the system,preventing the security issues previously caused by third-party key generation.Additionally,the scheme employs a two-stage data aggregation process to achieve fine-grained data aggregation,providing effective support for cloud service in vehicular networks.Security analysis and performance evaluations demonstrate that the proposed scheme is secure and offers higher computational and communication efficiency.

关 键 词：车载网 数据聚合 区块链 密钥托管弹性 匿名 

分 类 号：TP309.2[自动化与计算机技术—计算机系统结构]