This project presents a Blockchain-Based Secure Domain Name system (DNS) that addresses the critical vulnerability in traditional DNS infrastructure where records can be silently modified without any proof of tampering.
Every DNS record is secured through SHA-256 cryptographic hash chaining and permanently anchored on the Solana blockchain providing tamper-evident and publicly verifiable DNS record management.
Traditional DNS suffers from DDoS (Distributed Denial-of-service) attacks and cache poisoning due to its centralized architecture which lacks transparency in handling record changes. The 2019 Sea Turtle attack hijacked DNS records of government organizations
across 13 countries going undetected for months motivating the need for tamper-evident DNS.