Recent papers

• A Complete Security Proof of SQIsign
  with Marius A. Aardal, Andrea Basso, Sikhar Patranabis, Benjamin Wesolowski.
• SQIsign2D-West: The Fast, the Small, and the Safer
  with Andrea Basso, Pierrick Dartois, Antonin Leroux, Luciano Maino, Giacomo Pope, Damien Robert, Benjamin Wesolowski.
  ASIACRYPT 2024
• Isogeny Problems with Level Structure
  with Tako Boris Fouotsa, Lorenz Panny.
  EUROCRYPT 2024
• Proving knowledge of isogenies: a survey
  with Ward Beullens, Steven Galbraith, Christophe Petit.
  Designs, Codes and Cryptography
• On the (in)security of ElGamal in OpenPGP
  with Bertram Poettering, Alessandro Sorniotti.
  Communications of the ACM

view more…

Lecture notes and theses

• Exploring Isogeny Graphs,
  Habilitation thesis, 220 pp, 2018.
• Mathematics of Isogeny Based Cryptography,
  Lecture notes, 44 pp, 2017.
• Fast Algorithms for Towers of Finite Fields and Isogenies,
  PhD thesis, 191 pp, 2010.

Selected software

• SQISign, C/libgmp, 2020–2025,
  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/