Blockchain Basics A Deep Dive into Distributed Ledger Technology and Its Relevance to IoT Security

Abstract

The rapid expansion of the Internet of Things (IoT) has created significant security challenges, with Distributed Denial of Service (DDoS) attacks becoming a primary threat to network stability. Traditional security mechanisms often fail to adequately address these risks, especially in decentralized IoT environments. Blockchain technology, known for its decentralized, transparent, and immutable properties, offers a robust solution to mitigate cyber threats in IoT systems. This chapter examines how blockchain can prevent DDoS attacks, enhance data integrity, and improve overall IoT security through decentralized identity management and smart contracts. By leveraging cryptographic techniques, blockchain provides a secure, auditable environment for IoT networks. The integration of blockchain with existing security measures, such as intrusion detection systems and edge computing, strengthens the resilience of IoT ecosystems. This chapter emphasizes blockchain's potential in safeguarding the confidentiality, integrity, and availability of IoT systems, positioning it as a critical component of future IoT security strategies.