A First Appraisal of Cryptographic Mechanisms for the Selective Disclosure of Verifiable Credentials

Andrea Flamini; Silvio Ranise; Silvio Ranise; Giada Sciarretta; Mario Scuro; Amir Sharif; Alessandro Tomasi

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Paper

A First Appraisal of Cryptographic Mechanisms for the Selective Disclosure of Verifiable Credentials

Topics: Applied Cryptography; Identity Management; Privacy Enhancing Technologies

In Proceedings of the 20th International Conference on Security and Cryptography SECRYPT - Volume 1, 123-134, 2023 , Rome, Italy

Authors: Andrea Flamini ¹ ; Silvio Ranise ^{1

;

2} ; Giada Sciarretta ² ; Mario Scuro ¹ ; Amir Sharif ² and Alessandro Tomasi ²

Affiliations: ¹ Department of Mathematics, University of Trento, Trento, Italy ; ² Center for Cybersecurity, FBK, Trento, Italy

Keyword(s): Selective Disclosure, Verifiable Credentials, Zero-Knowledge Proof, eIDAS 2, GDPR.

Abstract: Verifiable credentials are a digital analogue of physical credentials. Their authenticity and integrity are protected by means of cryptographic techniques, and they can be presented to verifiers to prove claims about the holder of the credential itself. One way to preserve privacy during presentation consists in selectively disclosing the attributes in a credential. In this paper we present the most widespread cryptographic mechanisms used to enable selective disclosure of attributes, describing their structure and comparing them in terms of performance, size of the associated verifiable presentations, and the ability to produce predicate proofs and unlinkable presentations.

CC BY-NC-ND 4.0

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Paper citation in several formats:

Flamini, A.; Ranise, S.; Sciarretta, G.; Scuro, M.; Sharif, A. and Tomasi, A. (2023). A First Appraisal of Cryptographic Mechanisms for the Selective Disclosure of Verifiable Credentials. In Proceedings of the 20th International Conference on Security and Cryptography - SECRYPT; ISBN 978-989-758-666-8; ISSN 2184-7711, SciTePress, pages 123-134. DOI: 10.5220/0012084000003555

@conference{secrypt23,
author={Andrea Flamini. and Silvio Ranise. and Giada Sciarretta. and Mario Scuro. and Amir Sharif. and Alessandro Tomasi.},
title={A First Appraisal of Cryptographic Mechanisms for the Selective Disclosure of Verifiable Credentials},
booktitle={Proceedings of the 20th International Conference on Security and Cryptography - SECRYPT},
year={2023},
pages={123-134},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0012084000003555},
isbn={978-989-758-666-8},
issn={2184-7711},
}

TY - CONF

JO - Proceedings of the 20th International Conference on Security and Cryptography - SECRYPT
TI - A First Appraisal of Cryptographic Mechanisms for the Selective Disclosure of Verifiable Credentials
SN - 978-989-758-666-8
IS - 2184-7711
AU - Flamini, A.
AU - Ranise, S.
AU - Sciarretta, G.
AU - Scuro, M.
AU - Sharif, A.
AU - Tomasi, A.
PY - 2023
SP - 123
EP - 134
DO - 10.5220/0012084000003555
PB - SciTePress