Decentralized Certificate Authentication with Blockchain Technology

Abstract

Certificate authentication has typically depended on central authorities, which can lead to security issues like
forgery, data tampering, and vulnerabilities that stem from a single point of failure. In this paper, we introduce a
decentralized method for certificate authentication through blockchain technology, which helps provide security,
transparency, and a permanent record. By using smart contracts and cryptographic hashing, this system removes
the need for middlemen, allowing organizations to securely create, manage, and confirm certificates. The
blockchain acts as a secure ledger, making sure that certificates are protected from tampering and can always be
verified.
This method builds trust in digital credentials, cuts down on fraud, and makes the authentication process easier
for employers, schools, and other organizations. With blockchain, we reduce administrative burdens and stop
unauthorized changes, which streamlines how we handle certificates. Also, the decentralized setup means that it
can be accessed and used by a variety of institutions and industries around the globe. Through our prototype and
analysis, we show that blockchain-based certificate authentication is feasible, secure, and efficient in real-life
situations. Our results point to how blockchain technology could transform how we verify digital credentials,
opening new possibilities for a safer and more decentralized future in education and the job market.