Katharina Boudgoust

CNRS Researcher

Main focus: Cryptography

Twitter handle: @KBoudgoust

Website/blog: https://katinkabou.github.io/

Languages: English, French, German

City: Montpellier

Country: France

Topics: cryptography, lattice-based cryptography, number theory, post-quantum cryptography

Services: Talk, Moderation, Workshop management, Consulting, Interview

  Willing to travel for an event.

  Willing to talk for nonprofit.


Since February 2024, I am a CNRS researcher (Chargée de Recherche) and part of the ECO Team of the LIRMM research institute in Montpellier in France.

Prior to this, I was from 2022 to 2023 postdoc in the Cryptography and Security Team of the Aarhus University in Denmark, hosted by Peter Scholl.

From 2018 to 2021, I was a PhD student within the EMSEC team at the IRISA Laboratory in Rennes under the supervision of Adeline Roux-Langlois and Pierre-Alain Fouque.

Examples of previous talks / appearances:

Lattice-Based Cryptography

Lattice-based cryptography is a rather recent research area which attracted a lot of interest in the last years. In particular through the encryption scheme Kyber and the two signature
schemes Dilithium and Falcon, all three selected by NIST for standardization and all basing their security on lattice problems. But what exactly do we mean by lattice-based cryptography? The goal of today's talk is to give a gentle introduction to this exciting research field. We will see a (small-dimensional) lattice, what the hard problems are in this domain and how we can use them to build encryption schemes. We will conclude with a personal outlook of interesting open research questions.

This talk is in: English
Feminist Reading Circle for Computer Scientists

Together with a colleague, I presented these slides during an internal meeting of the Gender Equality Commission of my (former) institute in Rennes.
We shared our experiences of organizing a feminist reading circle on topics in Computer Science.

This talk is in: English
Some Easy Instances of Ideal-SVP and Implications to the Partial Vandermonde Knapsack Problem
Video Thumbnail

Video of the research talk I gave during the important conference CRYPTO'22 in Santa Barbara, US.
Together with my co-authors we won the "Best Early Career Researcher Award" for this research result.

This talk is in: English