On-Chain Crypto-Secured Credential Verification On Permissioned Blockchain

Verifying credentials, such as educational degrees, professional licenses, and permits, is a crucial yet challenging task for organizations globally. Traditional verification methods often rely on third-party vendors, introducing vulnerabilities like bias, security breaches, and privacy risks. While blockchain technology offers a promising solution for credential management, existing approaches often store sensitive credential data off-chain in centralized databases or the InterPlanetary File System (IPFS), leaving them susceptible to data breaches and loss.This paper presents a robust credential verification system built on blockchain and cryptographic constructs. The system stores credentials directly on the chain, eliminating reliance on vulnerable off-chain storage and mitigating associated risks. Furthermore, our analysis of a common credential dataset demonstrates the cost-effectiveness of our solution, suggesting its potential for widespread adoption. Future work includes implementing measures resistant to future cryptographic attacks and ensuring secure key management.