P2P networking based internet of things (IoT) sensor node authentication by Blockchain

Sensor nodes play a major role in IoT environment, and each sensor is a peer to peer networking. Due to limited physical size, IoT sensor nodes must have light-weight authentication protocol. The Internet of Things (IoT) is a collection of various technical elements. It is expected that interworking between heterogeneous terminals, networks, and applications. They will accelerate through the liberalization of the IoT platform. As a result, many technical and administrative security threats will arise in the IoT environment. Sensor node protocols must be light-weight and secure. As IoT devices are used for various purposes, for some devices that require performance, the OS with a high-performance chipset that works, most passwords protocol. However, to turn on / off the lights IoT devices that perform simple tasks such as based on a low-performance chipset with no OS running. If it does not support encryption protocol or certificate, then it is vulnerable, and it does not have enough performance to handle. Therefore, in this paper, Block-chain-based IoT device is proposed to get a more secure authentication scheme.