I am a postdoctoral researcher in Inria Saclay at LIX (Computer Science Laboratory of the École Polytechnique) in the SURYCAT team. My work focuses on post-quantum cryptography, particularly on cryptanalysis of lattice-based and code-based problems, in both classical and quantum settings. I am especially interested in transferring techniques between these domains.
Previously, I was a postdoctoral researcher at CWI in Amsterdam.
From 2020 to 2023, I completed my PhD under the supervision of André Chailloux in the COSMIQ team at Inria Paris.
Publications
Preprints
A Tight Quantum Algorithm for Multiple Collision SearchXavier Bonnetain, Johanna Loyer, André Schrottenloher, Yixin Shen
Standardisation
NIST 2023 Call for Post-Quantum Cryptography
Ph.D. thesis
| Quantum Cryptanalysis on Lattices and Codes |  |
Scientific Outreach
Media
- Interviewed by Epsiloon for the article "Panique chez les cryptologues post-quantiques" , by Clémentine Laurens, 24 July 2024.
- Active member of EclairSI (Association of scientists for informed public debate on cybersecurity). Commission monitoring legal and media developments related to security and privacy. Current focus: risks of age-verification technologies.
Program committee
- PKC'27 (Public Key Cryptography), Taipei, Taiwan, 1-4 march 2027
- PKC'26 (Public Key Cryptography), West Palm Beach, USA, 25-28 may 2026
Teaching
- Teaching Assistant, Quantum Computing, Master (Year 4), Sorbonne University (2022-2023)
- Teaching Assistant, Python Programming, Bachelor (Year 1), Sorbonne University (2022-2023)