Patrick Neumann 0004

dblp:32/2220-4 · DBLP profile ↗
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6ranked-venue papers
0as first author
5since 2021 · last 2026
0000-0003-1624-4256ORCID · verified

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Security and privacy · 6 · 5 since 2021
YearPublicationVenuePosition
2026 Meet-in-the-Middle Attacks on Full ChiLow
Eran Lambooij, Patrick Neumann 0004, Michiel Verbauwhede, Shichang Wang, Tianyu Zhang 0004
CRYPTO (6)2
2025 The State-Test Technique on Differential Attacks: a 26-Round Attack on Craft and Other Applications
Dounia M'foukh, María Naya-Plasencia, Patrick Neumann 0004
ASIACRYPT (1)3
2025 Commutative cryptanalysis as a generalization of differential cryptanalysis
abstract
Abstract Recently, Baudrin et al. analyzed a special case of Wagner’s commutative diagram cryptanalysis, referred to as commutative cryptanalysis. For a family $$(E_k)_k$$ ( E k ) k of permutations on a finite vector space G, commutative cryptanalysis exploits the existence of affine permutations $$A,B :G \rightarrow G$$ A , B : G → G , $$I \notin \{A,B\}$$ I ∉ { A , B } such that $$E_k \circ A (x) = B \circ E_k(x)$$ E k ∘ A ( x ) = B ∘ E k ( x ) holds with high probability, taken over inputs x, for a significantly large set of weak keys k. Several attacks against symmetric cryptographic primitives can be formulated within the framework of commutative cryptanalysis, most importantly differential attacks, as well as rotational and rotational-differential attacks. Besides, the notion of c-differentials on S-boxes can be analyzed as a special case within this framework. We discuss the relations between a general notion of commutative cryptanalysis, with A and B being arbitrary functions over a finite Abelian group, and differential cryptanalysis, both from the view of conducting an attack on a symmetric cryptographic primitive, as well as from the view of a theoretical study of cryptographic S-boxes.
Jules Baudrin, Christof Beierle, Patrick Felke, Gregor Leander, Patrick Neumann 0004, Léo Perrin, Lukas Stennes
Des. Codes Cryptogr.5
2023 On Perfect Linear Approximations and Differentials over Two-Round SPNs
Christof Beierle, Patrick Felke, Gregor Leander, Patrick Neumann 0004, Lukas Stennes
CRYPTO (3)4
2023 Pitfalls and Shortcomings for Decompositions and Alignment
Baptiste Lambin, Gregor Leander, Patrick Neumann 0004
EUROCRYPT (4)3
2019 bison Instantiating the Whitened Swap-Or-Not Construction
Anne Canteaut, Virginie Lallemand, Gregor Leander, Patrick Neumann 0004, Friedrich Wiemer
EUROCRYPT (3)4