6MID:Mircochain based Intrusion Detection for 6LoWPAN based IoT networks

A blockchain is a decentralized, distributed, and often public, digital ledger system consisting of records called blocks, used to record transactions across many computers so that any involved block cannot be altered retroactively, without the alteration of all subsequent blocks. In literature, Blockchain is used as a medium to achieve trust between nodes in distributed autonomous systems like the Internet of Things(IoT). In IoT, resource-scarce, economical sensing devices are deployed in large to gain accuracy. Routing Protocol for Low Power and lossy network (RPL) is defined as the de facto standard for large-scale deployment. Due to wireless communication and resource constriend deployment, medium RPL is susceptible to many DOS attacks. This paper presents a space-efficient blockchain architecture viz. 6MID using Microchain. 6MID augments RPL to accommodate distributed ledger within resource-constrained 6LoWPAN devices and can be used to detect Blackhole attack. We also present a security analysis of the proposed framework in the context of IoT networks. (C) 2021 The Authors. Published by Elsevier B.V.