| Téléchargement | - Voir la version finale : Revocable policy-based chameleon hash using lattices (PDF, 4.6 Mio)
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| DOI | Trouver le DOI : https://doi.org/10.1515/jmc-2023-0012 |
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| Auteur | Rechercher : Klamti, Jean Belo1; Rechercher : Hasan, Mohammed Anwarul |
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| Affiliation | - Conseil national de recherches Canada. Technologies numériques
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| Format | Texte, Article |
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| Sujet | lattice-based cryptography; hash function; chameleon hash function; attribute-based encryption |
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| Résumé | A chameleon hash function is a type of hash function that involves a trapdoor to help find collisions, i.e., it allows the rewriting of a message without modifying the hash. For some applications, it is important to have the feature of revoking the rewriting privilege of the trapdoor holder. In this paper, using lattice-based hard problems that are considered quantum-safe, we first introduce a lattice-based chameleon hash with an ephemeral trapdoor (CHET) and then a revocable attribute-based encryption (RABE) scheme that is adaptively indistinguishable. We also give security analyses of our schemes and compare our RABE scheme to two relevant schemes proposed recently. Furthermore, we combine our CHET and RABE to design a new revocable policy-based chameleon hash. |
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| Date de publication | 2024-11-28 |
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| Maison d’édition | Walter de Gruyter |
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| Licence | |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | a586405b-8a5f-4a8c-960b-1ceb5b355aa9 |
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| Enregistrement créé | 2024-12-02 |
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| Enregistrement modifié | 2024-12-05 |
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