Research And Application Of Iot Security Based On Decentralization

With the development of the IoT,data security and privacy protection issues in IoT has got more attention.As the number of IoT devices increases and the amount of communication data increases,the burden risk on the central server is increasing.Under the traditional centralized architecture,once the central node is broken or the central database is damaged,IoT Security and personal privacy will be threatened.Decentralized blockchain technology has become an effective way to solve the current problem of centralized design of IoT.Blockchain technology is a decentralized technology that is famous as digital cryptocurrencies such as bitcoin are increasingly emerging.Unlike centralized design,all nodes in the blockchain network have reached a consensus and maintained the same database,which keeps away from the central centralized management and avoids the collapse of system by broken central server.Besides all nodes can communicate with each other and improve the efficiency of network communication.In this paper,the current issues of security and cryptology algorithms in IoT are studied in-depth,and the application characteristics and security of IoT industry are analyzed too.The technology of blockchain in bitcoin is also studied in-depth,and the design framework of Hyperledger Fabric and platform development technology are researched too.For IoT devices,a computing method of IoT device ID is proposed.Based on Hyperledger Fabric blockchain development platform and the IoT application scenarios of Smart wear,a decentralized intelligent device access and data storage case prototype is designed,and the case prototype has been developed.Furthermore,giving the case of the operation process and results of application and verifying the application of blockchain technology in the field of IoT possible.Finally let the center blockchain technology protect the data security and user privacy better in the IoT.