Blockchain Enabled Enhanced IoT Ecosystem Security

TL;DR

This paper surveys how blockchain technology can be integrated into IoT ecosystems to improve security and privacy, discussing recent research, challenges, and potential solutions for blockchain-enabled IoT security enhancements.

Contribution

It provides a comprehensive survey of recent blockchain applications in IoT security, highlighting challenges and proposing potential solutions for enhanced security.

Findings

Blockchain improves IoT security through cryptographic mechanisms.

Blockchain adoption in IoT spans various non-monetary systems.

Challenges include scalability and privacy concerns.

Abstract

Blockchain (BC), the technology behind the Bitcoin cryptocurrency system, is starting to be adopted for ensuring enhanced security and privacy in the Internet of Things (IoT) ecosystem. Fervent research is currently being focused in both academia and industry in this domain. Proof of Work (PoW), a cryptographic puzzle, plays a vital role in ensuring BC security by maintaining a digital ledger of transactions, which are considered to be incorruptible. Furthermore, BC uses a changeable Public Key (PK) to record the identity of users, thus providing an extra layer of privacy. Not only in cryptocurrency has the successful adoption of the BC been implemented, but also in multifaceted non-monetary systems, such as in: distributed storage systems, proof of location and healthcare. Recent research articles and projects or applications were surveyed to assess the implementation of the BC for IoT Security and identify associated challenges and propose solutions for BC enabled enhanced security for the IoT ecosystem.