PUF-Based Authentication System with Resilience against Multi-Faceted Attacks for Blockchain-based IoT Networks

Abstract

Now a days, blockchain based IOT networks are gaining popularity for the unlimited space and robust security mechanism. Blockchain is the best solution for the IoT devices to store the huge amount of data generated by them with utmost privacy and security using distributed ledger. However, the resource constrained IoT devices having low computing power are unable to meet the huge computing requirements of data mining in blockchain networks. This paper has proposed a robust Physically Unclonable Function (PUF)-based authentication system to replace the popular consensus algorithms by a lightweight hardware-based authentication mechanism without compromising the security and privacy. The proposed ring oscillator based PUF modules fortify users' credentials and withstand various types of attacks in decentralized and tamper-resistant blockchain based IOT network with significant reduction in latency and power consumption. Attack analysis is done to compare the vulnerabilities of both the proposed and conventional systems to prominent blockchain attacks. The results of attack analysis demonstrate that the proposed system outperforms the conventional PoW system.