IoT Device Multi-layer Connection Management Mechanism with Blockchain Smart Contracts

Abstract

This paper proposes a connection management mechanism for IoT devices using blockchain smart contracts. In recent years, with the development of network technology, the number of devices connected to the network is increasing exponentially as the number of devices increases, the risk of attacks increases. Therefore, blockchain plays a vital role in protecting IoT systems. In this paper, we propose and discuss a decentralized connection management mechanism to eliminate the threat associated with IoT by using blockchain's smart contract. We proposed a multi-layer management mechanism to reduce the cost of smart contract processing costs due to a large number of IoT devices. We also proposed a tool to manage the connection of IoT devices using smart contracts. In the evaluation, we evaluated our proposed management scheme by applying two types of connection structure i.e., hub-based layer and sink-based layer. The novelty of this method is the implementation of a hierarchical management system for each layer. The effectiveness is the reduction of the smart contact processing cost of devices that disconnects and reconnects to the network.