基于访问控制技术的物联网设备接入共识机制

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中图分类号：TP273 文献标志码：A文章编号：1001-5922（2025）05-0193-04

Abstract：In order to improve the access securityof IoTdevices，an access control based onaccesscontrol was proposed.Firstly，an IoTaccess control system was built with multiple IoTdevices，and adouble-layer blockchain network architecture was constructed.Then，the improved Raft algorithm was used to realize the consensus of the nodes of the main cluster，andthe consensus of the nodes of the sub-cluster was realized bythe PBFT algorithm，and he improved Raft-PBFTconsensus mechanism was designed.Finall，the method was simulated by the Hyperledger platform.The results showed thatthe proposed method realized eficient access control for IoTdevice access，and had the characteristics of low total cost，high consensus successrate，low delayand low communication overhead， and can be used for large-scale IoT access control. Compared with Raft，PBFTand theexisting consensus mechanisms，the proposed method has obvious advantages in terms of consensus delayand communication overhead.

Key words：access control；internet of things ；raft algorithm；PBFT algorithm

随着网络技术的快速发展，物联网设备数量呈几何式增长。（剩余6182字）