Articles at conferences
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Cryptanalysis of rank-2 Module-LIP in totally real number fields, with G. Mureau, A. Pellet-Mary, H. Pliatsok.
Accepted at EuroCrypt 2024. ePrint version -
On Gaussian sampling, smoothing parameter, and application to signatures, with T. Espitau and Y. Yu.
AsiaCrypt 2023. (Best paper award) eprint version -
Antrag: Annular NTRU Trapdoor Generation, with T. Espitau, Q. Nguyen, C. Sun, and M. Tibouchi.
AsiaCrypt 2023. ePrint version -
Shorter Hash-and-Sign Lattice-Based Signatures, with T. Espitau, M. Tibouchi and Y. Yu.
Crypto 2022. ePrint version -
Mitaka: A Simpler, Parallelizable, Maskable Variant of Falcon, with T. Espitau, P.A. Fouque, F. Gérard, M. Rossi, A. Takahashi, M. Tibouchi and Y. Yu.
EuroCrypt 2022. ePrint version -
MODFALCON: compact signatures based on module-NTRU lattices, with C. Chuengsatiansup, T. Prest, D. Stehlé, and K. Xagawa.
AsiaCCS 2020. ePrint version -
Key Recovery from Gram-Schmidt Norm Leakage in Hash-and-Sign Signatures over NTRU Lattices, with P-A. Fouque, P. Kirchner, M. Tibouchi and Y. Yu.
EuroCrypt 2020. ePrint version -
An LLL Algorithm for Module Lattices, with C. Lee, A. Pellet--Mary and D. Stehlé.
AsiaCrypt 2019. Selected for extended version in Journal of Cryptology.
ePrint version -
On the Ring-LWE and Polynomial-LWE problems, with M. Rosca and D. Stehlé.
EuroCrypt 2018. ePrint version -
Improved Sieving over Algebraic Curves, with V. Vitse.
LatinCrypt 2015. Hal version
Journal articles
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One Bit is All It Takes: A Devastating Timing Attack on BLISS's Non-Constant Time Sign Flips, with M. Tibouchi. Full version.
Journal of Mathematical Cryptology. -
On the smoothing parameter and last minimum of random orthogonal lattices, with E. Kirshanova, H. Nguyen, and D. Stehlé.
Design, Codes and Cryptography (DCC). ePrint version -
The Point Decomposition Problem in the divisor class group of Hyperelliptic curves: towards efficient computations in even characteristic, with J-C. Faugère.
Design, Codes and Cryptography (DCC). Preprint
Notes, ePrints, Workshops.
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Antrag: Simplifying and improving Falcon without compromising security, with T. Espitau, J. Guiton, Q. Nguyen, C. Sun and M. Tibouchi.
5th NIST PQC Standardization Conference. -
Mitaka: A Simpler, Parallelizable, Maskable Variant of Falcon, with T. Espitau, A. Takahashi, M. Tibouchi.
3rd NIST PQC Standardization Conference. Draft -
Lattice analysis on MiNTRU problem, with C. Lee. 2020.
ePrint -
One Bit is All It Takes: A Devastating Timing Attack on BLISS's Non-Constant Time Sign Flips, with M. Tibouchi.
MathCrypt 2019. ePrint version
Thesis manuscript
- The Point Decomposition Problem in Jacobian Varieties, 2016.
Hal version
Invited talks
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"Petit panorama de la cryptographie post-quantique, Ecole Polytechnique, 06/03/2023, intervention dans le cours de cyber-sécurité. Slides
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Do not overstretch NTRU-like problems, Post-Quantum Cryptography Workshop, Birmingham University, 21-25/03/2022. Slides
- Module-NTRU trapdoors and applications, international workshop "Lattices: From Theory to Practice". Simons Institute, Berkeley, 29/04/2020 (visio-conference). Slides, Video
Selected presentations
- Mod-Falcon: Compact Signatures based on Module-NTRU Lattices, AsiaCCS'20 (online), Taipei, 08/10/2020. Video
- On variants of Ring-LWE and Polynomial-LWE problems, Intel, San Diego, 26/08/2019. Slides
- One Bit Is All It Takes, MathCrypt, Santa Barbara, 18/08/2019. Slides
- On variants of Ring-LWE and Polynomial-LWE problems, cryptography seminar, PQShield, Mathematical Institute, Oxford University, 16/01/2019.
- On variants of Ring-LWE and Polynomial-LWE problems, cryptography and security seminar, NTT, Tokyo, 11/09/2018.
- On variants of Ring-LWE and Polynomial-LWE problems, séminaire CCA, Centre INRIA de Paris, 07/15/2018. Slides
- Calcul d'indice et courbes algébriques : de meilleures récoltes, séminaire de l'IMATH, Toulon, 12/12/2017. Slides
- On the Polynomial-LWE and Ring-LWE problems, monthly Lattice Meetings, LIP, ENS Lyon, 10/20/2017.
- Improved Sieving on Algebraic Curves, LatinCrypt'15, Guadalajara, Mexico, 08/25/2015.
Posters
- On variants of Ring-LWE and Polynomial-LWE problems, Journées Nationales du GDR-IM, Saclay, 05/04/2018. Poster
- Décompositions de points dans les variétés Jacobiennes hyperelliptiques, Journées nationales du GDR-IM, Montpellier, 03/14/2017. Poster
Some code
- Magma code for decomposition algorithms: http://hypersum.gforge.inria.fr/
- C code for signature recovering against BLISS: OneBitBliss