Blockchain for IoT Security: A State-of-the-Art Survey

The Internet of Things (IoT) has seen a rapid growth in recent years, which has led to new security concerns, ranging from data integrity to authentication and privacy. The classic centralized approach to security is not adequate in this context, given the diversity and resource-constraints of IoT devices. Blockchain, which has a robust, transparent, and immutable structure, has been found promising towards combating such vulnerabilities in IoT devices. In this article, a taxonomy of various types of consensus methods, and various applications of blockchain in securing IoT, has been provided in a state-of-the-art remote review, covering areas such as healthcare, smart homes, IIoT, and vehicular networks, along with a comprehensive analysis. The article has also listed various future research areas, ranging from using artificial intelligence for optimizing consensus methods to post-quantum blockchain, apart from some other areas, which are yet to be overcome, such as interoperability, regulatory, and resource-constraints of blockchain technology.

کلیدواژه ها:

Blockchain ، Internet of Things ، Security ، Privacy ، Consensus Mechanisms