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Conference Papers Year : 2013

Anonymous Lattice-Based Broadcast Encryption

Adela Georgescu
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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.
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Dates and versions

hal-01480192 , version 1 (01-03-2017)





Adela Georgescu. Anonymous Lattice-Based Broadcast Encryption. 1st International Conference on Information and Communication Technology (ICT-EurAsia), Mar 2013, Yogyakarta, Indonesia. pp.353-362, ⟨10.1007/978-3-642-36818-9_39⟩. ⟨hal-01480192⟩
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