Blockchain-Enabled IoT: Ensuring Data Integrity in a Connected World

Abstract

Internet of Things (IoT) has connected everyday objects to the internet, creating opportunities for data-driven insights. However, traditional IoT systems using centralized cloud servers often lead to isolated data storage and raise concerns about data security and privacy. To address these issues, the paper introduces a system that combines blockchain technology with IoT sensors. This system focuses on being modular, efficient with data, and available while using lightweight encryption methods suitable for resource-limited IoT devices.

One key concept introduced is "proof-of-authentication," where sensor nodes create authentication tags based on their data. These tags are verified by cluster head nodes before being added to the blockchain. The paper demonstrates that this approach can authenticate data quickly, making it suitable for IoT devices with limited resources.

The paper also highlights the growing importance of blockchain in various sectors, including industry, government, and academia, similar to the early days of cloud computing and IoT. However, challenges remain, particularly in industrial IoT (IIoT). The paper discusses the latest developments in blockchain-enabled IoT applications and outlines future research directions. It emphasizes the need for collaboration with organizations to turn blockchain-based IoT solutions into practical applications.

In summary, this paper contributes to our understanding of integrating blockchain into IoT systems. It provides design principles, management insights, and technological recommendations, exploring how IoT and blockchain can transform industries. It acknowledges the need for ongoing research and collaboration to fully realize their potential.