Title Privacy-preserving model for Decentralized Digital Identity under EU compliance
Authors Rutkauskas, Mykolas ; Atmanavičiūtė, Laura ; Masteika, Saulius
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Is Part of CEUR Workshop proceedings: IVUS 2025: Proceedings of the 30th international conference on Information Society and University Studies (IVUS 2025), Kaunas, Lithuania, 15 May 2025 / edited by: I. Veitaitė, A. Lopata, T. Krilavičius, M. Woźniak.. Aachen : CEUR-WS. 2026, vol. 4213, p. 50-61.. ISSN 1613-0073
Keywords [eng] BBS+ cryptography ; blockchain ; Decentralized Digital Identity systems ; EU Digital identity ; IPFS
Abstract [eng] The growing demand for secure digital identity systems in the EU requires GDPR-compliant solutions that address accountability and data control in decentralized technologies. This research enhances privacy by using IPFS for decentralized storage and BBS+ cryptography to enable selective disclosure of credential attributes, without storing sensitive information directly on-chain. It explores secure issuance, verification, and storage of DIDs and VCs while ensuring GDPR compliance, including data minimization and the "right to be forgotten." BBS+ commitments enable selective disclosure and unlinkability, reducing traceability risks. IPFS ensures sensitive data remains off-chain. This conceptual study lays the groundwork for integrating these techniques, with future work assessing their feasibility and scalability in real-world identity verification.
Published Aachen : CEUR-WS
Type Conference paper
Language English
Publication date 2026
CC license CC license description