A Survey on the Applications of Blockchains in Security of IoT Systems

TL;DR

This survey reviews how blockchain technology can enhance security and data integrity in IoT systems by addressing integration challenges and security issues, highlighting current approaches and applications.

Contribution

It provides a comprehensive overview of blockchain integration methods and security solutions specifically tailored for IoT systems, emphasizing their potential and challenges.

Findings

Blockchain can improve IoT security and data integrity.

Various integration approaches are discussed and evaluated.

Blockchain addresses key security issues in IoT environments.

Abstract

The Internet of Things (IoT) has already changed our daily lives by integrating smart devices together towards delivering high quality services to its clients. These devices when integrated together form a network through which massive amount of data can be produced, transferred, and shared. A critical concern is the security and integrity of such a complex platform to ensure the sustainability and reliability of these IoT-based systems. Blockchain is an emerging technology that has demonstrated its unique features and capabilities for different problems and application domains including IoT-based systems. This survey paper reviews the adaptation of Blockchain in the context of IoT to represent how this technology is capable of addressing the integration and security problems of devices connected to IoT systems. The innovation of this survey is that we present a survey based upon the integration approaches and security issues of IoT data and discuss the role of Blockchain in connection with these issues.