Fiche du document
25 mars 2013
- handle: 10670/1.hy0xrj
- hal: hal-01480192
- doi: 10.1007/978-3-642-36818-9_39
Ce document est lié à :
info:eu-repo/semantics/altIdentifier/doi/10.1007/978-3-642-36818-9_39
http://creativecommons.org/licenses/by/ , info:eu-repo/semantics/OpenAccess
Sujets proches
Natural science Sciences Science of scienceCiter ce document
Adela Georgescu, « Anonymous Lattice-Based Broadcast Encryption », HAL-SHS : sciences de l'information, de la communication et des bibliothèques, ID : 10.1007/978-3-642-36818-9_39
Métriques
Partage / Export
Résumé
In this paper we propose a lattice-based anonymous broadcast encryption scheme obtained by translating the broadcast encryption scheme of Paterson et al. [7] into the lattices environment. We use two essential cryptographic primitives for our construction: tag-based hint systems secure under Ring-LWE hardness and IND-CCA secure cryptosystem under LWE-hardness. We show that it is feasible to construct anonymous tag-based hint systems from Ring-LWE problem for which we use a variant with ”small” secrets known to be as hard as regular Ring-LWE. We employ an IND-CCA-secure public key encryption scheme from LWE [12] for the PKE component of the anonymous broadcast encryption scheme.