Jesús-Javier Chi-Domínguez

activity

20192023

collaborators

3 papers

cs.CR2023

RYDE: A Digital Signature Scheme based on Rank-Syndrome-Decoding Problem with MPCitH Paradigm

Loïc Bidoux, Jesús-Javier Chi-Domínguez, Thibauld Feneuil +4

We present a signature scheme based on the Syndrome-Decoding problem in rank metric. It is a construction from multi-party computation (MPC), using a MPC protocol which is a slight…

cs.CR2021

Extending the GLS endomorphism to speed up GHS Weil descent using Magma

Jesús-Javier Chi-Domínguez, Francisco Rodríguez-Henríquez, Benjamin Smith

Let $q = 2^{n}$ , and let $E / F_{q^{ℓ}}$ be a generalized Galbraith--Lin--Scott (GLS) binary curve, with $ℓ \geq 2$ and $(ℓ, n) = 1$ .We show that the GLS endomorphis…

cs.CR2019

Stronger and Faster Side-Channel Protections for CSIDH

Daniel Cervantes-Vázquez, Mathilde Chenu, Jesús-Javier Chi-Domínguez +3

CSIDH is a recent quantum-resistant primitive based on the difficulty of finding isogeny paths between supersingular curves. Recently, two constant-time versions of CSIDH have been…