Evaluating the Security and Privacy of Blockchain Integration in Domain Name Systems

Domain Name Systems (DNS) are crucial components of any modern network, as they allow users to type in a domain name as opposed to complete IP addresses to visit web pages on the internet. The DNS resolution process typically involves a recursive server that fetches addresses from the root, top-level domain, and authoritative nameservers and sends the address to the client. Since this process can be slow, a caching system is implemented to save and access previous queries. However, this approach can result in security and privacy vulnerabilities. Blockchain is an emerging distributed ledger technology whose decentralized nature and data validation mechanisms help ensure data integrity, reliability, and authenticity. This study investigates the feasibility of integrating blockchain into DNS. It examines and reviews how DNS security is typically implemented, how blockchain can be implemented in other systems, like Internet of Things (IoT) systems, as a security measure, and how other technologies, like honeypots and artificial intelligence (AI), can be implemented to enhance system security in different systems, and potentially in DNS. The discussion results highlight blockchain's effectiveness in securing and improving the privacy of DNSs and their users. The study recommends that more studies be conducted on integrating blockchain in existing system architectures, like DNS, and on using other technologies, such as honeypots and AI, in conjunction with blockchain to improve security in computer networks and systems further.