Nicolas Bon

I am a PhD student and engineer in cryptography in CryptoExperts and in the CASCADE team of Ecole Normale Supérieure de Paris, under the supervision of Sonia Belaïd, David Pointcheval and Matthieu Rivain. My main topic of research is Fully Homomorphic Encryption but I have a broader interest in anything cryptography-related and more generally in privacy-preserving technologies and cybersecurity.

I am invested as well in various engineering missions within CryptoExperts, especially development, security audit and consulting.

Besides my scientific and engineering activities, I also serve as a teaching assistant at the university.

selected publications

Optimized Homomorphic Evaluation of Boolean Functions

Nicolas Bon, David Pointcheval, and Matthieu Rivain

IACR Trans. Cryptogr. Hardw. Embed. Syst., 2024

DOI Bib PDF Video Code

@article{DBLP:journals/tches/BonPR24,
  author = {Bon, Nicolas and Pointcheval, David and Rivain, Matthieu},
  title = {Optimized Homomorphic Evaluation of Boolean Functions},
  journal = {{IACR} Trans. Cryptogr. Hardw. Embed. Syst.},
  volume = {2024},
  number = {3},
  pages = {302--341},
  year = {2024},
  url = {https://doi.org/10.46586/tches.v2024.i3.302-341},
  doi = {10.46586/TCHES.V2024.I3.302-341},
  timestamp = {Wed, 21 Aug 2024 22:05:49 +0200},
  biburl = {https://dblp.org/rec/journals/tches/BonPR24.bib},
  bibsource = {dblp computer science bibliography, https://dblp.org},
}

Further Improvements in AES Execution over TFHE: Towards Breaking the 1 sec Barrier

Sonia Belaïd, Nicolas Bon, Aymen Boudguiga, and 3 more authors

IACR Commun. Cryptol., 2025

Bib PDF Code

@article{cryptoeprint:2025/075,
  author = {Belaïd, Sonia and Bon, Nicolas and Boudguiga, Aymen and Sirdey, Renaud and Trama, Daphné and Ye, Nicolas},
  title = {Further Improvements in {AES} Execution over {TFHE}: Towards Breaking the 1 sec Barrier},
  year = {2025},
  journal = {{IACR} Commun. Cryptol.},
  volume = {2},
  number = {1},
  url = {https://eprint.iacr.org/2025/075},
}

Transistor: a TFHE-friendly Stream Cipher

Jules Baudrin, Sonia Belaïd, Nicolas Bon, and 8 more authors

2025

Bib PDF Code

@misc{cryptoeprint:2025/282,
  author = {Baudrin, Jules and Belaïd, Sonia and Bon, Nicolas and Boura, Christina and Canteaut, Anne and Leurent, Gaëtan and Paillier, Pascal and Perrin, Léo and Rivain, Matthieu and Rotella, Yann and Tap, Samuel},
  title = {Transistor: a {TFHE}-friendly Stream Cipher},
  howpublished = {Cryptology {ePrint} Archive, Paper 2025/282},
  year = {2025},
  journal = {Preprint},
  url = {https://eprint.iacr.org/2025/282},
}