A tight security reduction in the quantum random oracle model for code-based signature schemes - Inria - Institut national de recherche en sciences et technologies du numérique Access content directly
Preprints, Working Papers, ... Year : 2017

A tight security reduction in the quantum random oracle model for code-based signature schemes

Abstract

Quantum secure signature schemes have a lot of attention recently, in particular because of the NIST call to standardize quantum safe cryptography. However, only few signature schemes can have concrete quantum security because of technical difficulties associated with the Quantum Random Oracle Model (QROM). In this paper, we show that code-based signature schemes based on the full domain hash paradigm can behave very well in the QROM i.e. that we can have tight security reductions. We also study quantum algorithms related to the underlying code-based assumption. Finally, we apply our reduction to a concrete example: the SURF signature scheme. We provide parameters for 128 bits of quantum security in the QROM and show that the obtained parameters are competitive compared to other similar quantum secure signature schemes.

Dates and versions

hal-01671870 , version 1 (22-12-2017)

Identifiers

Cite

André Chailloux, Thomas Debris-Alazard. A tight security reduction in the quantum random oracle model for code-based signature schemes . 2017. ⟨hal-01671870⟩

Collections

INRIA INRIA2
92 View
0 Download

Altmetric

Share

Gmail Mastodon Facebook X LinkedIn More