Research

Publications

2025
RYDE: a digital signature scheme based on rank syndrome decoding problem with MPC-in-the-Head paradigm. Article ePrint

Joint work with Loïc Bidoux, Jesús-Javier Chi-Domínguez, Philippe Gaborit, Antoine Joux, Matthieu Rivain and Adrien Vinçotte. Designs, Codes and Cryptography.

2024
Dual Support Decomposition in the Head: Shorter Signatures from Rank SD and MinRank. Article ePrint

Joint work with Loïc Bidoux, Philippe Gaborit, Romaric Neveu and Matthieu Rivain. ASIACRYPT 2024.

2024
MQ on my Mind: Post-Quantum Signatures from the Non-Structured Multivariate Quadratic Problem. Article ePrint

Joint work with Ryad Benadjila and Matthieu Rivain. EuroS&P 2024.

2024
Building MPCitH-based Signatures from MQ, MinRank, and Rank SD (and PKP). Article ePrint

ACNS 2024. Best Student Paper Award

2023
Threshold Linear Secret Sharing to the Rescue of MPC-in-the-Head. Article ePrint

Joint work with Matthieu Rivain. ASIACRYPT 2023.

2022
Zero-Knowledge Protocols for the Subset Sum Problem from MPC-in-the-Head with Rejection. Article ePrint

Joint work with Jules Maire, Matthieu Rivain and Damien Vergnaud. ASIACRYPT 2022.

2022
Syndrome Decoding in the Head: Shorter Signatures from Zero-Knowledge Proofs. Article ePrint

Joint work with Antoine Joux and Matthieu Rivain. CRYPTO 2022.

2022
Shared Permutation for Syndrome Decoding: New Zero-Knowledge Protocol and Code-Based Signature. Article ePrint

Joint work with Antoine Joux and Matthieu Rivain. Designs, Codes and Cryptography.

Preprints

2025
SmallWood: Hash-Based Polynomial Commitments and Zero-Knowledge Arguments for Relatively Small Instances. ePrint

Joint work with Matthieu Rivain. Cryptology ePrint Archive, Report 2025/1085.

2025
Blinding Post-Quantum Hash-and-Sign Signatures. ePrint

Joint work with Charles Bouillaguet, Jules Maire, Matthieu Rivain, Julia Sauvage, and Damien Vergnaud. Cryptology ePrint Archive, Report 2025/895.

2025
Masking-Friendly Post-Quantum Signatures in the Threshold-Computation-in-the-Head Framework. ePrint

Joint work with Matthieu Rivain and Auguste Warmé-Janville. Cryptology ePrint Archive, Report 2025/520.

2025
CAPSS: A Framework for SNARK-Friendly Post-Quantum Signatures. ePrint

Joint work with Matthieu Rivain. Cryptology ePrint Archive, Report 2025/061.

2023
Threshold Computation in the Head: Improved Framework for Post-Quantum Signatures and Zero-Knowledge Arguments. ePrint

Joint work with Matthieu Rivain. Cryptology ePrint Archive, Report 2023/1573.

Miscellaneous

2020
Internship Report Practical side-channel attacks by lattice reduction PDF (in Fr.) Slides (in Fr.)

Contributions to the framework LWE-Leaky-Estimator, a Sage Toolkit to attack the robustness and estimate the hardness of LWE with Side Information.

Students Supervision

  • Auguste Warmé-Janville — PhD 2024-present

    Co-supervision with Matthieu Rivain and Damien Vergnaud.

  • Auguste Warmé-Janville — Master Internship 2024

    Co-supervision with Matthieu Rivain.

  • Ronan Thoraval — Master Internship 2023

    Co-supervision with Matthieu Rivain.

Program Committee

I served — or am currently serving — as a program committee member for:

Talks

2025-06-05
Polynomial Commitment Strategies in Hash-Based Proof Systems for Small Statements Slides

Workshop PQC, Zürich, Switzerland. 1-hour talk.

2025-03-13
MQOM: MQ on my Mind — Version 2 Slides

PEPR PQ-TLS meeting, Paris, France. 30-minute talk.

2024-11-08
The Polynomial-IOP Vision of the Latest MPCitH Frameworks for Signature Schemes Slides Video

Post-Quantum Algebraic Cryptography - Workshop 2 (website), Paris, France. 1-hour talk.

2024-10-15
The Polynomial-IOP Vision of the Latest MPCitH Frameworks for Signature Schemes Slides

ACCESS Seminar (website), online. 1-hour talk.

2024-09-27
Post-Quantum Signatures from Secure Multiparty Computation Slides

Workshop ReAdPQC24 at CIFRIS24 (website), Rome, Italia. 30-minute talk.

2024-07-10
MQ on my Mind: Post-Quantum Signatures from the Non-Structured Multivariate Quadratic Problem Slides

EuroS&P 2024 (website), Vienna, Austria. 20-minute talk.

2024-05-21
Constructions for digital signature Part I: Introduction to MPC-in-the-Head Slides

NIST PQC Seminar (website), online. 1-hour talk.

2024-03-22
Recent Advances in MPCitH-based Post-Quantum Signatures Slides

Crypto Seminar Rennes (website), Rennes, France. 1-hour talk.

2024-03-06
Building MPCitH-based Signatures from MQ, MinRank, and Rank SD Slides

ACNS 2024 (website), Abu Dhabi, UAE. 20-minute talk.

2024-02-29
Threshold Computation in the Head: More Efficient Signatures from MPCitH Slides

Workshop NAC (Numération, Arithmétique, Cryptographie) 2024 (website), Paris, France. 30-minute talk.

2024-02-20
Post-Quantum Signatures from Secure Multiparty Computation Slides

Winter Research School (website), Rennes, France. 90-minute talk.

2024-02-20
Introduction to Zero-Knowledge Proofs Slides

Winter Research School (website), Rennes, France. 90-minute talk.

2023-10-16
Post-Quantum Signatures from Secure Multiparty Computation Slides

Journées C2 (website), Najac, France. 20-minute talk.

2023-09-04
RYDE & MIRA Signature Schemes Slides Video

Second Oxford Post-Quantum Cryptography Summit 2023 (website), University of Oxford (UK). 40-minute talk.

2023-08-17
Post-Quantum Signatures from Multiparty Computation: Recent Advances Slides Video

Invited talk at PQC'23 (website), University of Maryland (USA). 1-hour talk.

2023-07-12
Code-Based Signatures from Secure Multiparty Computation Slides

2023 SIAM Conference on Applied Algebraic Geometry (website), Eindhoven, Netherlands. 30-minute talk.

2023-06-29
Post-Quantum Signatures from Secure Multiparty Computation Slides

Quantum PEPR PQ-TLS project days (website), Paris, France. 30-minute talk.

2023-06-28
CRY.ME: a Cryptographic Challenge on a Messaging Application Slides

Joint talk with Abdul Rahman Taleb.
Journées Nationales 2023 du GDR Sécurité Informatique (website), Puteaux, France. 30-minute talk.

2023-06-14
Post-Quantum Signatures from Secure Multiparty Computation Slides

Workshop WRACH 2023 (website), Roscoff, France. 45-minute talk.

2023-02-07
Building MPCitH-based Signatures with Some Classical Hardness Assumptions Slides

National Institute of Standards and Technology (NIST), restricted audience. 1-hour talk.

2022-12-07
Zero-Knowledge Protocols for the Subset Sum Problem from MPC-in-the-Head with Rejection Slides Abstract (Video) Video

ASIACRYPT 2022 (website), online. 20-minute talk.

2022-11-21
Building MPCitH-based Signatures from MQ, MinRank, Rank SD and PKP Slides

INRIA, Paris, France. 1-hour talk.

2022-11-14
Syndrome Decoding in the Head: Shorter Signatures from Zero-Knowledge Proofs Slides

ENSL/CWI/RHUL Joint Seminar (website), online. 1-hour talk.

2022-08-16
Syndrome Decoding in the Head: Shorter Signatures from Zero-Knowledge Proofs Slides Abstract (Video) Video

CRYPTO 2022 (website), Santa Barbara, USA. 20-minute talk.

2022-06-10
Syndrome Decoding in the Head: Shorter Signatures from Zero-Knowledge Proofs Slides

Seminar C2 (website), Rennes, France. 45-minute talk.

2022-04-14
Zero-Knowledge Proofs for Syndrome Decoding from MPC-in-the-Head Slides

Journées C2 (website), Hendaye, France. 15-minute talk.

2022-03-14
Syndrome Decoding in the Head: Shorter Signatures from Zero-Knowledge Proofs Slides

INRIA, Paris, France. 1-hour talk.

2021-12-10
Shared Permutation for Syndrome Decoding: New Zero-Knowledge Protocol and Code-based Signature

ALMASTY Seminar (website), Paris, France. 1-hour talk.