摘要
为提高物联网设备接入安全,提出一种基于访问控制的物联网设备接入方法。首先采用多个物联网设备搭建了物联网访问控制系统,并构建了双层区块链网络架构;然后分别采用改进的Raft算法实现主集群节点共识,采用PBFT算法实现子集群节点共识,设计了改进Raft-PBFT共识机制;最后用超级账本平台对方法进行了仿真。结果表明,所提方法实现了物联网设备接入的高效访问控制,且具有总成本低、共识成功率高、时延低和通信开销低的特点,可用于大规模物联网访问控制。相较于Raft、PBFT以及现有共识机制,所提方法在共识时延和通信开销方面具有明显优势。
In order to improve the access security of IoT devices,an access control based on access control was proposed.Firstly,an IoT access control system was built with multiple IoT devices,and a double-layer blockchain network architecture was constructed.Then,the improved Raft algorithm was used to realize the consensus of the nodes of the main cluster,and the consensus of the nodes of the sub-cluster was realized by the PBFT algorithm,and the improved Raft-PBFT consensus mechanism was designed.Finally,the method was simulated by the Hyperledger platform.The results showed that the proposed method realized efficient access control for IoT device access,and had the characteristics of low total cost,high consensus success rate,low delay and low communication overhead,and can be used for large-scale IoT access control.Compared with Raft,PBFT and the existing consensus mechanisms,the proposed method has obvious advantages in terms of consensus delay and communication overhead.
作者
许静萱
张亮
盛剑桥
沈越欣
XU Jingxuan;ZHANG Liang;SHENG JianQiao;SHEN Yuexin(Information and Communication Branch,State Grid Anhui Electric Power Co.,Ltd.,Hefei 230061,China)
出处
《粘接》
2025年第5期193-196,共4页
Adhesion
基金
国网安徽省电力有限公司科技项目(项目编号:B3120723001R)。
