Guilhem Niot
About Me
I am a PhD student at PQShield supervised by Thomas Prest (PQShield) and Pierre-Alain Fouque (Université de Rennes 1). I recently graduated from ENS Lyon, France and EPFL, Switzerland, and obtained a double Master of Computer Science. I am majoring in Cybersecurity and Cryptography and I’m very much interested into all topics related to privacy, applied cryptography and software security, ranging from analysing the security of protocols, to writing efficient and secure software, or working on more theorical yet practical cryptographic schemes.
Check my resume to learn more about my background.
Research Interests
- Cryptography: protocol design, cryptography engineering
- Cybersecurity: pen-testing, threat modelling
Publications
2025
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PQCrypto 2025
2024
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EUROCRYPT 2024
2023
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National Institute of Standards and Technology (NIST), Additional Digital Signature Schemes, 2023
2022
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IEEE/Transactions on Knowledge and Data Engineering (TKDE), 2022
Awards
- Received a 5000$ grant from Public Good Crypto for project to distribute the ML-DSA digital signature.
- Received the Kudelski Prize (1500CHF) from EPFL for my master thesis on Squirrels. 𝕏 post.
Talks
- Secret Sharing Schemes for Lattice-Based Threshold Cryptography - PDF
Workshop on secret sharing schemes, satellite EUROCRYPT 2025 (14/05/2025) - Finally! A Compact Lattice-Based Threshold Signature - PDF
Journées C2 ‘25 (04/2025) - Short Shares, Small Coefficients: A New Secret Sharing Scheme and its Applications to Lattice-based Threshold Cryptography - PDF
Almasty Seminar, LIP6, Sorbonne University, Paris (21/03/2025) - Identifiable Aborts in TRaccoon: Let’s introduce Short Secret Sharings - PDF
Journée PEPR PQ TLS, Paris (13/03/2025) - Short Shares, Small Coefficients: A New Secret Sharing Scheme and its Applications to Lattice-based Threshold Cryptography - PDF
IBM Research Europe visit, Zurich (03/02/2025) - Short Shares, Small Coefficients: A New Secret Sharing Scheme and its Applications to Lattice-based Threshold Cryptography - PDF
JP Morgan AlgoCRYPT Seminar (remote) (10/01/2025) - Beyond the Threshold: Detecting Aborts in Lattice-based Threshold Signature Schemes - PDF
Visit Cryptography and Privacy Lab, Seoul National University (03/12/2024) - Flood and Submerse: Distributed Key Generation and Robust Threshold Signature from Lattices - PDF
ENSL/CWI/KCL/IRISA joint crypto seminar (remote) (30/09/2024) - Flood and Submerse: Distributed Key Generation and Robust Threshold Signature from Lattices - PDF
CRYPTO 2024, Santa Barbara (19/08/2024) - Plover: Masking-Friendly Hash-and-Sign Lattice Signature - PDF
EUROCRYPT 2024, Zurich (30/05/2024) - Plover: Masking-Friendly Hash-and-Sign Lattice Signature - PDF
CAPSLOCK Seminar, Rennes (05/04/2024) - Squirrels: a post-quantum signature scheme based on plain lattices - PDF
Journées C2 ‘23 (18/10/2023) - Squirrels: a post-quantum signature scheme based on plain lattices - PDF
Master thesis defense (12/09/2023) - Making KNN algorithms faster with GoldFinger, a Fast and Precise method for approximating Jaccard similarity - PDF
Master internship defense (08/2021) - Intel SGX enclaves - PDF
Bachelor internship defense - French (08/2020)
Posters
- Squirrels: Unstructured Lattice Digital signature - PDF
NIST Fifth PQC Standardization Conference (04/2024)
Projects
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NelmioApiDocBundle: Extension of PHP Framework Symfony to ease API documentation.
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Dolphin: a toy decentralized bill-sharing app. CRDTs for managing distributed data, and TreeKEM for Group Key Management and key rotations.
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Pingo: a π-calculus interpreter in G
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Vice-president of AliENS, the IT association of ENS de Lyon (600 members) from 2020 until 2022.
Blog posts
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Fighting side-channel attacks with our general toolkit: illustration with the Plover signature , with Amin Sakzad ()
Reviewed for
I also took part in the peer-reviewing process of the following conferences:
- CRYPTO 2025
- EUROCRYPT 2024, 2025
- TCC 2024
and journals:
- Designs, Codes and Cryptography 2025