Welcome to the resource topic for 2024/1295
Title:
Identity-Based Encryption from Lattices with More Compactness in the Standard Model
Authors: Weidan Ji, Zhedong Wang, Haoxiang Jin, Qi Wang, Geng Wang, Dawu Gu
Abstract:Lattice-based identity-based encryption having both efficiency and provable security in the standard model is currently still a challenging task and has drawn much attention. In this work, we introduce a new IBE construction from NTRU lattices in the standard model, based on the framework proposed by Agrawal, Boneh, and Boyen (EUROCRYPT 2010). Particularly, by introducing the NTRU trapdoor and the RingLWE computational assumption, we remove a crux restriction of the column number and obtain a more compact IBE construction in the standard model. Besides, we provide a concrete implementation and detailed performance results with a comparison of previous works in terms of the security model and the assumption, which demonstrates the advantage of our construction.
ePrint: https://eprint.iacr.org/2024/1295
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