Integration of Citizen’s Card Digital Authentication in Hyperledger

Carlos Machado Antunes; Marisa Maximiano; Vítor Távora; Ricardo Gomes; Manuel Dias; Ricardo Correia

doi:10.34624/jdmi.v8i19.40196

Integration of Citizen’s Card Digital Authentication in Hyperledger

Carlos Machado Antunes School of Technology and Management, Polytechnic of Leiria, Leiria, Portugal https://orcid.org/0009-0005-7010-4328
Marisa Maximiano School of Technology and Management, CIIC, Polytechnic of Leiria, Leiria, Portugal https://orcid.org/0000-0002-1212-7864
Vítor Távora School of Technology and Management, Polytechnic of Leiria, Leiria, Portugal https://orcid.org/0009-0004-0404-9378
Ricardo Gomes School of Technology and Management, Polytechnic of Leiria, Leiria, Portugal http://orcid.org/0000-0002-0438-9119
Manuel Dias BioGHP, Lisboa, Portugal http://orcid.org/0009-0000-1830-6479
Ricardo Correia BioGHP, Lisboa, Portugal http://orcid.org/0009-0005-1237-6632

DOI: https://doi.org/10.34624/jdmi.v8i19.40196

Keywords: Blockchain, Authentication, Smart Card, Private Key Management

Abstract

This study investigates the integration of the Portuguese Citizen’s Card authentication with Hyperledger Fabric blockchain technology, addressing the challenge of bridging traditional government-issued digital identities with blockchain-based systems, particularly focusing on reducing barriers to Web3 adoption for users unfamiliar with decentralized technologies. The proposed solution leverages the Autenticação.gov Software Development Kit (SDK), developed by the Portuguese Agency for Administrative Modernization (AMA) to create a secure bridge between the Citizen’s Card authentication system and Hyperledger Fabric's permissioned blockchain framework. The study examines how this approach can facilitate the development of transparent, tamper-proof authentication systems suitable for critical applications such as e-voting and digital government services, and also feasible for on-premises systems. The findings suggest that integrating existing digital identity systems with blockchain technology can promote wider acceptance of decentralized solutions while maintaining security, privacy, and accessibility standards required for public sector applications.

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Published

2025-12-09

Issue

Vol 8 No 19 (2025): Web3

Section

Articles

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