Blockchain Technology (BCT) for Cyber Defence and Cybersecurity
Chandra Sekhar Bhusal · 2024
Cyber defence and cybersecurity are crucial components in protecting digital assets and information in today&s;s interconnected world. Due to rise of sophisticated cyber-attacks, the existing cyber defence technology has become less effective in providing robust defence and security to the cyberspace. Blockchain technology (BCT) has emerged as a promising solution for various industries including cryptocurrency, supply chain management, healthcare, financial services, voting system, and many more. It also has the potential to revolutionize cyber defence, cybersecurity and implementing effective countermeasures against the cyber threats. In a digital world where cyber-attacks are getting more sophisticated and frequent, the blockchain offer uniquely capable capabilities to improve safety, resilience, and trust in today&s;s electronic systems. This chapter explores the techniques, solutions, and applications of BCT in the context of cyber defence and cybersecurity. The chapter reviews existing research and industry practices to identify the potential applications of BCT in cyber defence. It examines how blockchain can be utilized for secure identity management, decentralized access control, secure data sharing, and tamper-proof logging and auditing. The chapter delves into the challenges and limitations associated with implementing blockchain in cyber defence and discusses scalability concerns, regulatory considerations, and the need for interoperability with existing systems. The practical implications of BCT in cyber defence are illustrated through real-world use cases and case studies. Finally, this chapter presents a comprehensive examination of the techniques, solutions, and applications of BCT in the field of cyber defence, cybersecurity, and countermeasures.