Wouter Castryck

According to our database, Wouter Castryck authored at least 46 papers between 2006 and 2025.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of three.

2025

KLPT²: Algebraic Pathfinding in Dimension Two and Applications.

Wouter Castryck, Thomas Decru, Péter Kutas, Abel Laval, Christophe Petit, Yan Bo Ti

IACR Cryptol. ePrint Arch., 2025

PRISM: Simple and Compact Identification and Signatures from Large Prime Degree Isogenies.

Andrea Basso, Giacomo Borin, Wouter Castryck, Maria Corte-Real Santos, Riccardo Invernizzi, Antonin Leroux, Luciano Maino, Frederik Vercauteren, Benjamin Wesolowski

Proceedings of the Public-Key Cryptography - PKC 2025, 2025

Orient Express: Using Frobenius to Express Oriented Isogenies.

Wouter Castryck, Riccardo Invernizzi, Gioella Lorenzon, Jonas Meers, Frederik Vercauteren

Proceedings of the Progress in Cryptology - LATINCRYPT 2025, 2025

KLPT²: Algebraic Pathfinding in Dimension Two and Applications.

Wouter Castryck, Thomas Decru, Péter Kutas, Abel Laval, Christophe Petit, Yan Bo Ti

Proceedings of the Advances in Cryptology - CRYPTO 2025, 2025

2024

Breaking and Repairing SQIsign2D-East.

Wouter Castryck, Mingjie Chen, Riccardo Invernizzi, Gioella Lorenzon, Frederik Vercauteren

IACR Cryptol. ePrint Arch., 2024

Generalized Class Group Actions on Oriented Elliptic Curves with Level Structure.

Sarah Arpin, Wouter Castryck, Jonathan Komada Eriksen, Gioella Lorenzon, Frederik Vercauteren

Proceedings of the Arithmetic of Finite Fields - 10th International Workshop, 2024

SQIsign2D-East: A New Signature Scheme Using 2-Dimensional Isogenies.

Kohei Nakagawa, Hiroshi Onuki, Wouter Castryck, Mingjie Chen, Riccardo Invernizzi, Gioella Lorenzon, Frederik Vercauteren

Proceedings of the Advances in Cryptology - ASIACRYPT 2024, 2024

2023

An infinite class of Neumaier graphs and non-existence results.

Aida Abiad, Wouter Castryck, Maarten De Boeck, Jack H. Koolen, Sjanne Zeijlemaker

J. Comb. Theory A, 2023

An Efficient Key Recovery Attack on SIDH.

Wouter Castryck, Thomas Decru

Proceedings of the Advances in Cryptology - EUROCRYPT 2023, 2023

Weak Instances of Class Group Action Based Cryptography via Self-pairings.

Wouter Castryck, Marc Houben, Simon-Philipp Merz, Marzio Mula, Sam van Buuren, Frederik Vercauteren

Proceedings of the Advances in Cryptology - CRYPTO 2023, 2023

A Polynomial Time Attack on Instances of M-SIDH and FESTA.

Wouter Castryck, Frederik Vercauteren

Proceedings of the Advances in Cryptology - ASIACRYPT 2023, 2023

2022

Breaking the Decisional Diffie-Hellman Problem for Class Group Actions Using Genus Theory: Extended Version.

Wouter Castryck, Jana Sotáková, Frederik Vercauteren

J. Cryptol., 2022

On the decisional Diffie-Hellman problem for class group actions on oriented elliptic curves.

Wouter Castryck, Marc Houben, Frederik Vercauteren, Benjamin Wesolowski

IACR Cryptol. ePrint Arch., 2022

An efficient key recovery attack on SIDH (preliminary version).

Wouter Castryck, Thomas Decru

IACR Cryptol. ePrint Arch., 2022

Two Remarks on the Vectorization Problem.

Wouter Castryck, Natan Vander Meeren

Proceedings of the Progress in Cryptology - INDOCRYPT 2022, 2022

Horizontal Racewalking Using Radical Isogenies.

Wouter Castryck, Thomas Decru, Marc Houben, Frederik Vercauteren

Proceedings of the Advances in Cryptology - ASIACRYPT 2022, 2022

2021

Multiradical isogenies.

Wouter Castryck, Thomas Decru

IACR Cryptol. ePrint Arch., 2021

SoK: On the Security of Cryptographic Problems from Linear Algebra.

Carl Bootland, Wouter Castryck, Alan Szepieniec, Frederik Vercauteren

IACR Cryptol. ePrint Arch., 2021

A Fusion Algorithm for Solving the Hidden Shift Problem in Finite Abelian Groups.

Wouter Castryck, Ann Dooms, Carlo Emerencia, Alexander Lemmens

Proceedings of the Post-Quantum Cryptography - 12th International Workshop, 2021

2020

CSIDH on the Surface.

Wouter Castryck, Thomas Decru

Proceedings of the Post-Quantum Cryptography - 11th International Conference, 2020

Rational Isogenies from Irrational Endomorphisms.

Wouter Castryck, Lorenz Panny, Frederik Vercauteren

Proceedings of the Advances in Cryptology - EUROCRYPT 2020, 2020

Breaking the Decisional Diffie-Hellman Problem for Class Group Actions Using Genus Theory.

Wouter Castryck, Jana Sotáková, Frederik Vercauteren

Proceedings of the Advances in Cryptology - CRYPTO 2020, 2020

Radical Isogenies.

Wouter Castryck, Thomas Decru, Frederik Vercauteren

Proceedings of the Advances in Cryptology - ASIACRYPT 2020, 2020

2019

Hash functions from superspecial genus-2 curves using Richelot isogenies.

Wouter Castryck, Thomas Decru, Benjamin Smith

IACR Cryptol. ePrint Arch., 2019

A Framework for Cryptographic Problems from Linear Algebra.

Carl Bootland, Wouter Castryck, Alan Szepieniec, Frederik Vercauteren

IACR Cryptol. ePrint Arch., 2019

2018

On the Security of the Multivariate Ring Learning with Errors Problem.

Carl Bootland, Wouter Castryck, Frederik Vercauteren

IACR Cryptol. ePrint Arch., 2018

Efficiently Processing Complex-Valued Data in Homomorphic Encryption.

Carl Bootland, Wouter Castryck, Ilia Iliashenko, Frederik Vercauteren

IACR Cryptol. ePrint Arch., 2018

Translating Between the Roots of the Identity in Quantum Computers.

Wouter Castryck, Jeroen Demeyer, Alexis De Vos, Oliver Keszöcze, Mathias Soeken

Proceedings of the 48th IEEE International Symposium on Multiple-Valued Logic, 2018

Homomorphic SIM ^2 D Operations: Single Instruction Much More Data.

Wouter Castryck, Ilia Iliashenko, Frederik Vercauteren

Proceedings of the Advances in Cryptology - EUROCRYPT 2018 - 37th Annual International Conference on the Theory and Applications of Cryptographic Techniques, Tel Aviv, Israel, April 29, 2018

CSIDH: An Efficient Post-Quantum Commutative Group Action.

Wouter Castryck, Tanja Lange, Chloe Martindale, Lorenz Panny, Joost Renes

Proceedings of the Advances in Cryptology - ASIACRYPT 2018, 2018

2017

Homomorphic SIM²D Operations: Single Instruction Much More Data.

Wouter Castryck, Ilia Iliashenko, Frederik Vercauteren

IACR Cryptol. ePrint Arch., 2017

Hypersurfaces in weighted projective spaces over finite fields with applications to coding theory.

Yves Aubry, Wouter Castryck, Sudhir R. Ghorpade, Gilles Lachaud, Michael E. O'Sullivan, Samrith Ram

CoRR, 2017

Faster Homomorphic Function Evaluation Using Non-integral Base Encoding.

Charlotte Bonte, Carl Bootland, Joppe W. Bos, Wouter Castryck, Ilia Iliashenko, Frederik Vercauteren

Proceedings of the Cryptographic Hardware and Embedded Systems - CHES 2017, 2017

Privacy-Friendly Forecasting for the Smart Grid Using Homomorphic Encryption and the Group Method of Data Handling.

Joppe W. Bos, Wouter Castryck, Ilia Iliashenko, Frederik Vercauteren

Proceedings of the Progress in Cryptology - AFRICACRYPT 2017, 2017

2016

On error distributions in ring-based LWE.

Wouter Castryck, Ilia Iliashenko, Frederik Vercauteren

LMS J. Comput. Math., 2016

On the tightness of the error bound in Ring-LWE.

Wouter Castryck, Ilia Iliashenko, Frederik Vercauteren

IACR Cryptol. ePrint Arch., 2016

Provably Weak Instances of Ring-LWE Revisited.

Wouter Castryck, Ilia Iliashenko, Frederik Vercauteren

Proceedings of the Advances in Cryptology - EUROCRYPT 2016, 2016

2015

The lattice size of a lattice polygon.

Wouter Castryck, Filip Cools

J. Comb. Theory A, 2015

2014

Constraints on counterexamples to the Casas-Alvero conjecture and a verification in degree 12.

Wouter Castryck, Robert Laterveer, Myriam Ounaïes

Math. Comput., 2014

Curves in characteristic 2 with non-trivial 2-torsion.

Wouter Castryck, Marco Streng, Damiano Testa

Adv. Math. Commun., 2014

2012

Moving Out the Edges of a Lattice Polygon.

Wouter Castryck

Discret. Comput. Geom., 2012

2011

Toric forms of elliptic curves and their arithmetic.

Wouter Castryck, Frederik Vercauteren

J. Symb. Comput., 2011

2008

A Shortened Classical Proof of the Quadratic Reciprocity Law.

Wouter Castryck

Am. Math. Mon., 2008

Efficient arithmetic on elliptic curves using a mixed Edwards-Montgomery representation.

Wouter Castryck, Steven D. Galbraith, Reza Rezaeian Farashahi

IACR Cryptol. ePrint Arch., 2008

Computing Zeta Functions in Families of Ca, b.

Wouter Castryck, Hendrik Hubrechts, Frederik Vercauteren

Proceedings of the Algorithmic Number Theory, 8th International Symposium, 2008

2006

Computing Zeta Functions of Nondegenerate Curves.

Wouter Castryck, Jan Denef, Frederik Vercauteren

IACR Cryptol. ePrint Arch., 2006