Secure and Cost Effective IoT Authentication and Data Storage Framework using Blockchain NFT

Abstract

The scale and scope of using IoT has had a rapid growth over the past few years. This growth has raised security and cost challenges of using IoT smart devices in large scale. In this research, we propose a comprehensive framework that addresses these challenges using cryptographic systems and blockchain NFTs. We analyze the credibility and scalability of our framework. In our proposed framework, we securely authenticate IoT devices and bind them to blockchain Non-Fungible Tokens (NFTs). To uniquely bind each IoT device to an NFT, we use the device's physical unclonable function (PUF). The link between the NFT and the device is difficult to break and can be traced anytime. Our framework also authenticates the device's acquired data using the device's PUF and securely stores the authenticated data on the blockchain. We use an approach that significantly reduces the blockchain costs and analyze it in large scale. Our analysis show that our framework is a secure and cost-effective solution for large-scale IoT authentication and data storage.