About Me
Hi, I am Patrick Neumann, a researcher in the area of symmetric cryptography. I am currently a Post-Doc at Inria (Paris), where I am working on the cryptanalysis of symmetric ciphers.
Publications
The State-Test Technique on Differential Attacks: a 26-Round Attack on Craft and Other Applications
Published at ASIACRYPT, 2025
Joint work with Dounia M’Foukh, María Naya-Plasencia
Commutative Cryptanalysis as a Generalization of Differential Cryptanalysis
Published at Designs, Codes and Cryptography, 2025
Joint work with Jules Baudrin, Christof Beierle, Patrick Felke, Gregor Leander, Léo Perrin, Lukas Stennes
[Doctoral Thesis] Fundamental Theory of Block Ciphers: Uniqueness of Representation and Implications
Published at Ruhr-Universität Bochum, Universitätsbibliothek, 2024
Commutative Cryptanalysis Made Practical
Published at IACR Transactions on Symmetric Cryptology, 2023
Joint work with Jules Baudrin, Patrick Felke, Gregor Leander, Léo Perrin, Lukas Stennes
On Perfect Linear Approximations and Differentials over Two-Round SPNs
Published at CRYPTO, 2023
Joint work with Christof Beierle, Patrick Felke, Gregor Leander, Lukas Stennes
Pitfalls and Shortcomings for Decompositions and Alignment
Published at EUROCRYPT, 2023
Joint work with Baptiste Lambin, Gregor Leander
[Pre-Print] An Assessment of Differential-Neural Distinguishers
Published at Cryptology ePrint Archive, 2022
Joint work with Aron Gohr, Gregor Leander
BISON Instantiating the Whitened Swap-Or-Not Construction
Published at EUROCRYPT, 2019
Joint work with Anne Canteaut, Virginie Lallemand, Gregor Leander, Friedrich Wiemer
Talks & Presentations
The State-Test Technique on Differential Attacks: a 26-Round Attack on Craft and Other Applications
ASIACRYPT 2025, Melbourne, Australia
Presentation of the paper The State-Test Technique on Differential Attacks: a 26-Round Attack on Craft and Other Applications at ASIACRYPT 2025.
On Perfect Linear Approximations and Differentials over Two-Round SPNs
CRYPTO 2023, Santa Barbara, CA, USA
Presentation of the paper On Perfect Linear Approximations and Differentials over Two-Round SPNs at CRYPTO 2023.
Pitfalls and Shortcomings for Decompositions and Alignment
EUROCRYPT 2023, Lyon, France
Presentation of the paper Pitfalls and Shortcomings for Decompositions and Alignment at EUROCRYPT 2023.
An Assessment of Differential-Neural Distinguishers
AICrypt 2023, Lyon, France
Talk about the paper An Assessment of Differential-Neural Distinguishers at AICrypt 2023.
The Uniqueness of (SPN-)Round Function Decompositions
FrisiaCrypt 2022, Terschelling, The Netherlands
Talk about the uniqueness of (SPN-)round function decompositions. These results have later been published as part of the paper Pitfalls and Shortcomings for Decompositions and Alignment.
Employment
- 2025 - Now: Inria, Paris, France
- 2020 - 2025: Ruhr University Bochum, Bochum, Germany