Anonymous credentials : secret-free and quantum-safe / by Raza Ali Kazmi and Cyrus Minwalla. : FB3-5/2023-50E-PDF
"An anonymous credential mechanism is a set of protocols that allows users to obtain credentials from an organization and demonstrate ownership of these credentials without compromising users' privacy. In this work, we construct the first secret-free and quantum-safe credential mechanism. The scheme is secret-free in the sense that an organization does not need to guard a secret key. The scheme is also lightweight in construction. Security of the scheme relies on the ability of the organization to maintain the integrity of a publicly known data structure - namely, a Merkle tree - that utilizes a quantum-safe, partially homomorphic hash function as a foundational primitive. We also construct a simple, quantum-safe, zero-knowledge argument of knowledge of membership in the Merkle tree. Additionally, we explore a concrete instantiation of the scheme and show it to be practically efficient for the core functions of enrollment and verification"--Abstract, page 2.
Lien permanent pour cette publication :
publications.gc.ca/pub?id=9.927932&sl=1
| Ministère/Organisme | Bank of Canada, issuing body. |
|---|---|
| Titre | Anonymous credentials : secret-free and quantum-safe / by Raza Ali Kazmi and Cyrus Minwalla. |
| Titre de la série | Staff working paper = Document de travail du personnel, 1701-9397 ; 2023-50 |
| Type de publication | Série - Voir l'enregistrement principal |
| Langue | [Anglais] |
| Format | Électronique |
| Document électronique | |
| Note(s) | "September 28, 2023." Cover title. Includes bibliographical references (pages [14]-15). Includes abstracts in English and French. |
| Information sur la publication | [Ottawa] : Bank of Canada = Banque du Canada, 2023. ©2023 |
| Auteur / Contributeur | Kazmi, Raza Ali, author. |
| Description | 1 online resource (15 pages) : illustrations. |
| Numéro de catalogue |
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| Descripteurs | Identification cards. Digital currency. Banks and banking, Central -- Research. Cartes d'identité. Monnaie électronique. Banques centrales -- Recherche. |
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