摘要
为了解决各个信任应用域之间的跨域安全问题,保证隐私数据的跨域共享,利用区块链技术构建了基于主从链的隐私数据跨域共享模型。首先构建了主从链,并提出基于主从链的跨域共享模型架构;设计了基于智能合约的跨域访问机制,并基于跨域访问机制提出了面向隐私数据的跨域安全共享方案;最后,对模型的稳定性、吞吐量、存储开销等方面进行了实验及对比分析。实验结果表明,该模型同最新的单链跨域模型相比,吞吐量提升了270 TPS左右,节点的平均CPU负载和平均内存开销分别下降了24%和64%;同现有多链跨域模型相比,节点的平均CPU负载和平均内存开销分别下降了15%和20%,为物联网隐私数据的跨域安全共享提供了一种有效方法。
In order to solve the security issues of each trusted application domain,to ensure cross-domain sharing of private data,this paper proposed a cross-domain sharing model of private data based on the master-slave chain.Firstly,it presented a master-slave chain,and constructed a system architecture based on the master-slave chain.Then it designed a cross-domain access mechanism based on smart contracts,and put forward further the cross-domain secure sharing scheme for private data.Finally,it carried out an experimental analysis for stability,throughput and storage overhead for the proposed model.The experimental results show that,compared with the latest single-chain cross-domain models,the throughput has been improved by about 270 TPS,and the average CPU load and average memory overhead of the node are reduced by 24% and 64% in the proposed model respectively.Compared with the existing multi-chain cross-domain models,the average CPU load and average memory overhead of the node has dropped by 15% and 20%,respectively.The proposed model has provided an effective method for cross-domain secure access and sharing for the Internet of Things privacy data.
作者
潘雪
袁凌云
黄敏敏
Pan Xue;Yuan Lingyun;Huang Minmin(College of Information Science&Technology,Yunnan Normal University,Kunming 650500,China;Key Laboratory of Educational Information for Nationalities,Ministry of Education,Yunnan Normal University,Kunming 650500,China)
出处
《计算机应用研究》
CSCD
北大核心
2022年第11期3238-3243,共6页
Application Research of Computers
基金
国家自然科学基金资助项目(61561055)
云南省应用基础研究计划面上项目(202101AT070098)
云南省万人计划青年拔尖人才项目(2019)。
关键词
物联网
区块链
跨域共享
主从链
隐私数据
Internet of Things
blockchain
cross-domain sharing
master-slave chain
private data
