Benjamin Wesolowski

About me

Position

CNRS researcher (chargé de recherche), Unité de Mathématiques pures et appliquées (UMPA), École normale supérieure de Lyon

Team

Number theory group

Project

Principal Investigator of ERC project AGATHA CRYPTY, Algebraic groups at the heart of post-quantum cryptography (ERC Starting Grant, 2024–2028); workshop in August 2026

Service

Secretary of the International Association for Cryptologic Research (IACR) since 2023

ENS Lyon Crypto team

The people I supervise at ENS Lyon.

Postdocs

• Maria Corte-Real Santos
• Hansraj Jangir
• Harun Kir
• Julien SoumierJoining soon

PhD students

• Thibault Monneret
• Etienne Piasecki
• Ilinca Radulescu

Recent papers

1. The supersingular isogeny problem in time and memory p^1/3+o(1)Cryptology ePrint Archive 2026 · preprint
2. Rigorous Methods for Computational Number TheoryWith Koen de Boer and Alice Pellet-MaryCryptology ePrint Archive 2025 · preprint
3. Average hardness of SIVP for module lattices of fixed rankWith Koen de Boer, Aurel Page and Radu TomaSTOC 2026 · preprint

Contact