Enhancing IoT Security with Blockchain Technology: A Scalable Solution for Device Authentication

Abstract

Internet of Things (IoT) has overwhelmed the industries creating interdependence among the devices, automation of the system, and data sharing. Security issues have however come into place and in most cases the traditional measures might not be sufficient. The decentralized and transparent manner that is one of the blockchain technology applications might hold the answer in ensuring security of IoT systems, as it has been used in device authentication. With the help of an immutable ledger, offered by blockchain, the IoT devices can be registered, authenticated, and verified in a secure way, without involving central authorities, which limits the chances of a cyberattack. The concept of blockchain and IoT combination to offer scalable, secure, and efficient authentication system and its opportunities, disadvantages, and advantages in ensuring the data integrity of interconnected devices is described in the paper.