Welcome to the resource topic for 2015/969
Title:
Zero-Knowledge Interactive Proof Systems for New Lattice Problems
Authors: Claude Crepéau, Raza Ali Kazmi
Abstract:In this work we introduce a new hard problem in lattices called Isometric Lattice Problem (ILP) and reduce Linear Code Equivalence over prime fields and Graph Isomorphism to this prob- lem. We also show that this problem has an (efficient prover) perfect zero-knowledge interactive proof; this is the only hard problem in lattices that is known to have this property (with respect to malicious verifiers). Under the assumption that the polynomial hierarchy does not collapse, we also show that ILP cannot be NP-complete. We finally introduce a variant of ILP over the rationals radicands and provide similar results for this new problem.
ePrint: https://eprint.iacr.org/2015/969
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