Research On Internet Of Things Management System Based On Blockchain Technology

With the widespread use of the Internet of Things(Io T)system,the security issues of the Internet of Things system are getting more and more attention from society.Internet of Things devices are generally lightweight,usually distributed in untrusted environments,and are susceptible to physical attacks.With the exponential increase in the number of Io T devices,in the central Io T system architecture,the burden of the central server is increasing,which seriously affects the efficiency of the Io T system.In addition,the single-point failure problem faced by the central server needs to be solved urgently.The emergence of the distributed Io T system architecture alleviates the burden of the central server and the single point of failure.However,the synchronization of data between multiple nodes and the trust between multiple nodes in the distributed architecture is still a difficult point.Therefore,it is of great significance to study and design an efficient and credible Internet of Things management system.This topic is based on the blockchain and physical unclonable functions technologies to carry out the research of the Internet of Things management system;taking a typical smart home system as the research object,the proposed blockchain-based Management solutions for the Internet of Things.This topic proposes a hybrid blockchain-based Io T architecture,which manages Io T devices within the domain through the local blockchain,ensuring the efficiency of the system within the local scope;using the global blockchain to The identity of the device is verified to ensure the credibility of the device management data;a lightweight global identification method for physical security is established based on PUF to ensure the unlovability of the device in an untrusted environment;the combination of the above methods forms efficient management of the device 2.The guaranteed method of data credible verification.This article implements the proposed Io T device management scheme based on a hybrid chain and PUF for a typical smart home system.A hybrid chain blockchain system is built using Hyperledger,and SRAM PUF is used to provide a physically secure identity for Io T devices.Through the functional test,the feasibility of registration,query,and other functions in the hybrid blockchain system is verified.A system performance test platform was built to evaluate the time consumption of device certification,which proved the efficiency of local blockchain device management;Hyperledger Caliper was used to test the transaction delay and throughput of the blockchain chain code,which proved the solution.expansion.Finally,through security analysis,it is shown that the scheme has anonymity and traceability,and can help Io T devices to resist clones and single point of failure,which proves the reliability of global management of devices.