Translations: fr

Personal information

I am a full-time researcher at Inria Rennes within the CAPSULE team. I work in cryptology, with a focus on symmetric cryptanalysis, quantum algorithms and post-quantum cryptography.

Previously I was a postdoctoral researcher at the CWI in Amsterdam, in the Cryptology Group where I worked with Marc Stevens. I completed my PhD thesis in 2021 in Inria Paris, in the team SECRET (now COSMIQ). My thesis advisor was María Naya-Plasencia and my co-advisor André Chailloux.


Post-quantum cryptography aims at protecting current cryptosystems from an attacker equipped with a large-scale quantum computing device. While such a machine does not exist yet, it is well known that it would be able to break some widely used public-key cryptosystems (for example RSA). This is why the community is designing post-quantum cryptosystems which would be immune to this threat.

The confidence we have in modern cryptosystems relies on a large-scale cryptanalysis effort: cryptanalysts try for years to find weaknesses in designs or improved algorithms for the mathematical problems that underlie their security assumptions. Because of the possibility that a functional quantum computer appears in the future, we need to look not only for classical attacks but also quantum attacks, which make inherent use of the enhanced computational power of such a machine. While the attacker has quantum power, the algorithms attacked are still classical, because we expect them to still be in use twenty or thirty years from now.

This is the area of quantum cryptanalysis , on which my research mainly focuses:


I'm involved in the following research projects:


I'm currently supervising two PhD Students: Completed internships:

Program commitee(s)



andre /dot/ schrottenloher /at/ inria /dot/ fr


By Randall Munroe on xkcd.com