Lucas Ottow's Homepage

About

I am a PhD student in the ECO team of the LIRMM, in Montpellier, France. I am under the supervision of Pascal Giorgi, Fabien Laguillaumie, and Damien Vergnaud.

My research focuses on cryptography, more specifically Multi-Party Computation (MPC). My main topic of interest is studying how can Computer Algebra be used in order to design or improve solutions for MPC problems. I’ve worked for example on variants of the Private Set Intersection problem. I am also interested in error-correcting codes and their applications in cryptography.

I am part of the Women in Cryptography Association. In June 2025, I helped organized the Decrypting Diversity Summit in Montpellier, whose goal was to promote diversity in all its forms in the cryptography community.

Previously, I was a student at the ENS Paris-Saclay, where I obtained my MPRI master’s degree, and passed the math « agrégation ».

Contact

Mail: lucas <dot> ottow <at> lirmm <dot> fr

office 2.10
LIRMM, building 4
161 rue Ada
F-34095 Montpellier
France

Publications

2026
2024
  • Fast Secure Computations on Shared Polynomials and Applications to Private Set Operations
    Pascal Giorgi, Fabien Laguillaumie, Lucas Ottow, Damien Vergnaud

    ITC 2024 – 5th Information-Theoretic Cryptography Conference, Aug 2024, Stanford, CA, United States.
    [Eprint][Dagsthul]

Teaching

2025-2026
  • HAI720I Programmation Algorithmique Efficace: TD/TP en M1
  • HAI507I Calcul Formel: Cours Magistraux et TP en L3
2024-2025
  • HAI303I Système: TD/TP en L2
  • HAI507I Calcul Formel: TP en L3
2023-2024
  • HAI202I Programmation C: TD et TP en L1
  • HAI201I Algorithmique 2: TP en L1

Positions and Interships