BLOCKCHAIN-ENABLED SECURE COMMUNICATION IN INDUSTRIAL IOT

Abstract

Industrial Internet of Things (IIoT) systems are transforming manufacturing, energy, and infrastructure sectors by integrating sensing, automation, and data analytics. However, the increasing connectivity and scale of IIoT devices amplify security concerns—especially for secure communication, authentication, and data integrity. Blockchain technology has emerged as a promising solution by providing decentralized trust, tamper-proof data storage, and secure communication mechanisms. This paper explores blockchain-enabled secure communication in IIoT environments, analyzes current architectural approaches, proposes a secure framework leveraging private blockchain and smart contracts, and evaluates the outcomes in terms of data integrity, latency, and resilience. The findings demonstrate that blockchain integration enhances security without compromising performance, paving the way for resilient industrial networks.