Jean Kieffer
+33 5 40 00 83 71
Bureau 319 (IMB)

Welcome to my home page!


I am a Ph.D. student at University of Bordeaux in the LFANT team, under the supervision of Damien Robert and Aurel Page, since September 2018.

My research interests include computational aspects of algebraic geometry and number theory, and their applications in cryptography. I currently work on isogeny computations, modular equations, and point counting for Jacobians of genus 2 curves.

I am a former student of the École normale supérieure (ENS) in Paris. My master's thesis is about key-exchange protocols from ordinary isogeny graphs, and was supervised by Luca De Feo and Benjamin Smith from the INRIA team Grace. I also did a six-month internship in the Thales crypto team, where I implemented a finely-tuned version of the SEA point-counting algorithm.


You can find here a list of publications and other works, as well as contact and personal information.


Last updated March 4, 2020.