Taking IoT security to the next level: Hyperledger fabric private blockchain enabled IoT middleware

As the growth of the Internet of Things (IoT) persists, it becomes imperative to deliberate on strategies for protecting the security and privacy inside the confines of resource constrained devices and their data, while also preserving optimal performance. This research paper offers an innovative solution at the intersection of IoT middleware and Blockchain technology, specifically the Hyperledger fabric. Through the use of a distributed decentralized ledger, we overcome many of the limitations of current IoT networks. This paper outlines a robust layered IoT model that could be applied to any use case, providing security and privacy at the edge of IoT devices. We conducted an implementation setup to test the model and validate the security measures embedded through Blockchain design. Additionally, we improved IoT devices interoperability through the use of semantic ontologies. Overall, this research contributes to the ongoing effort to create a secure and efficient IoT ecosystem.