Securing Blockchain-Based IoT Systems: A Review

This paper reviews the role of blockchain technology in enhancing the security of Internet of Things (IoT) systems and maintaining data integrity. We address the increased vulnerabilities and broader attack surface resulting from the integration of blockchain and IoT. The review emphasizes the potential of technologies like zero-knowledge proofs (ZKP) and post-quantum cryptography (PQC) to mitigate these security challenges. Additionally, we explore how game theory, machine learning, and cyber deception strengthen the defense of blockchain-based IoT systems against various threats. The paper also identifies open research areas, emphasizing the need for continued exploration to advance these fields. An additional contribution of this study is introducing a conceptual framework incorporating these technologies, laying the groundwork for developing advanced security solutions within the blockchain-enhanced IoT ecosystem.