The Role of Blockchain in Digital Identity Management: Security and Scalability Challenges

Abstract

With increasing concerns over data breaches and identity fraud, blockchain technology has emerged as a potential solution for secure and decentralized digital identity management. This paper explores the role of blockchain in authentication, identity verification, and access control. We evaluate different blockchain frameworks, including Ethereum and Hyperledger, highlighting their strengths and weaknesses in terms of scalability, interoperability, and regulatory compliance. The study also discusses real-world use cases and provides recommendations for implementing blockchain-based identity solutions at scale.