COMPREHENSIVE REVIEW OF BLOCKCHAIN-BASED DECENTRALIZED IDENTITY VERIFICATION AND MANAGEMENT SYSTEMS

Authors

  • Shafat-e-Rasool Department of Information and Communication Engineering BS Cyber Security and Digital Forensics, The Islamia University of Bahawalpur (IUB)
  • Aisha Nadeem Department of Information and Communication Engineering BS Cyber Security and Digital Forensics, The Islamia University of Bahawalpur (IUB)
  • Muhammad Fahad Saeed Department of Information and Communication Engineering BS Cyber Security and Digital Forensics, The Islamia University of Bahawalpur (IUB)
  • ENGR. Farhan Hassan Assistant Professor, Department of Information and Communication Engineering BS Cyber Security and Digital Forensics, The Islamia University of Bahawalpur (IUB)

Abstract

Digital identity management is undergoing a paradigm shift from centralized models to decentralized approaches leveraging blockchain technology. This comprehensive review analyzes blockchain based decentralized identity management systems (DIMS) and self sovereign identity (SSI) ecosystems.We examine academic works as well as commercial solutions, identifying five essential components of effective DIMS: authentication, integrity, privacy, trust, and simplicity. The paper provides a detailed taxonomy of existing approaches, comparing their architectures, security models, and implementation strategies.We perform a thorough security analysis of potential threats, including Sybil attacks, 51% attacks, and privacy breaches.The review highlights South Korea’s DID Alliance as a successful case study of public sector adoption while identifying key challenges in scalability, interoperability, and regulatory compliance. Emerging solutions like zero-knowledge proofs and hybrid blockchain architectures are evaluated as promising directions. This work serves as both a reference for researchers and a guide for practitioners implementing decentralized identity solutions.

 Keywords : Blockchain, decentralized identity, self-sovereign identity, digital identity management, privacy-preserving authentication.

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Published

2025-03-31

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Vol. 4 No. 1 (2025): Journal of Emerging Technology and Digital Transformation

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