Luca De Feo

Research Staff Member

IBM Research Europe

Saümerstrasse 4
CH-8803 Rüschlikon

Black and white Luca sipping a glowing golden drink.

Recent papers

  • New algorithms for the Deuring correspondence: SQISign twice as fast
  • SIKE Channels, Zero-Value Side-Channel Attacks on SIKE
    with Nadia El Mrabet, Aymeric Genêt, Novak Kaluđerović, Natacha Linard de Guertechin, Simon Pontié, Élise Tasso.
  • On the security of OSIDH
    with Pierrick Dartois.
    PKC 2022
  • SÉTA: Supersingular Encryption from Torsion Attacks
    with Cyprien Delpech de Saint Guilhem, Tako Boris Fouotsa, Péter Kutas, Antonin Leroux, Christophe Petit, Javier Silva, Benjamin Wesolowski, Benjamin Wesolowski.
    Advances in Cryptology – ASIACRYPT 2021
  • SIDH Proof of Knowledge
    with Samuel Dobson, Steven Galbraith, Lukas Zobernig.

view more…

Lecture notes and theses

Selected software

  • SQISign, C/libpari, 2020,
    Compact post-quantum signature based on isogenies.
  • √élusqrt, C/Sagemath/Nemo/Magma, 2020,
    Asymptotically fastest isogeny evaluation and CSIDH implementation.
  • Isogeny VDF, Sagemath, 2019–2020,
    Isogeny-based Verifiable Delay Function (PoC).
  • Sagemath, Python, 2009–present,
    I am a modest contributor to this great software. Use it!.

find more projects on my GitHub page and learn more about my past activity with OpenDreamKit.

Selected talks, videos and more…

…find them at DeFeo.Lu/DOCET/

Current research students

  • Pierrick Dartois, IBM / Corps des Mines-Télécom, MSc.
  • Antonin Leroux, École Polytechnique, PhD.
  • Élise Tasso, CEA/Leti, PhD.

view past students and theses…


Currently I am not giving any courses.

Past Courses