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

  • Proving knowledge of isogenies: a survey
    with Ward Beullens, Steven Galbraith, Christophe Petit.
    Designs, Codes and Cryptography
  • SCALLOP: scaling the CSI-FiSh
    with Tako Boris Fouotsa, Péter Kutas, Antonin Leroux, Simon-Philipp Merz, Lorenz Panny, Benjamin Wesolowski.
    PKC 2023
  • Supersingular Curves You Can Trust
    with Andrea Basso, Giulio Codogni, Deirdre Connolly, Tako Boris Fouotsa, Guido Maria Lido, Travis Morrison, Lorenz Panny, Sikhar Patranabis, Benjamin Wesolowski.
    EUROCRYPT 2023
  • New algorithms for the Deuring correspondence: Towards practical and secure SQISign signatures
    with Antonin Leroux, Patrick Longa, Benjamin Wesolowski.
    EUROCRYPT 2023
  • SIDH Proof of Knowledge
    with Samuel Dobson, Steven Galbraith, Lukas Zobernig.
    Advances in Cryptology – ASIACRYPT 2022

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

  • Ryan Rueger, ETH Zürich, MSc.
  • Giacomo Borin, IBM / Universität Zürich, PhD.
  • Sina Schaeffler, IBM / ETH Zürich, PhD.
  • Pierrick Dartois, IBM / Corps des Mines-Télécom / Inria, PhD.

view past students and theses…


Currently I am not giving any courses.

Past Courses