A blockchain scheme for authentication, data sharing and nonrepudiation to secure internet of wireless sensor things

A blockchain based scheme is proposed in the underlying work for performing registration, mutual authentication, data sharing and nonrepudiation in internet of wireless sensor things. The nodes are divided into three types in the proposed scheme: sensor nodes, cluster heads and coordinators. Moreover, a consortium blockchain, deployed on the coordinators, is employed for storing the legitimate nodes’ identities. Furthermore, coordinators also help in the execution of smart contracts, which facilitate the sensor nodes in authentication, data sharing and nonrepudiation processes. Additionally, for storing the nodes’ ambient data, artificial intelligence based interplanetary file system (IPFS) is used. Furthermore, to increase the transaction throughput and efficiency of the network, a stellar consensus protocol is used. From the simulation results, the transaction latency of the proposed model is approximately 81.82% lower than the proof of work based model. Moreover, the gas consumption of data request and provisioning is 0.10 US Dollars.