Wouter Castryck

70 papers A 1C 3Misc 1Journal 48Unranked 17
YearRankTypeTitle / Venue / Authors
2026 J jnl
Lie algebras and the security of cryptosystems based on classical varieties in disguise.
IACR Cryptol. ePrint Arch.
Wouter Castryck, Mingjie Chen, Péter Kutas, Jun Bo Lau, Alexander Lemmens, Mickaël Montessinos
2026 J jnl
PRISM with a pinch of salt: Simple, Efficient and Strongly Unforgeable Signatures from Isogenies.
IACR Cryptol. ePrint Arch.
Andrea Basso, Giacomo Borin, Wouter Castryck, Maria Corte-Real Santos, Riccardo Invernizzi, Antonin Leroux, Luciano Maino, Frederik Vercauteren, Benjamin Wesolowski
2026 J jnl
The principal ideal problem for endomorphism rings of superspecial abelian varieties.
IACR Cryptol. ePrint Arch.
Wouter Castryck, Jonathan Komada Eriksen, Riccardo Invernizzi, Frederik Vercauteren
2025 — conf
KLPT
CRYPTO (1)
Wouter Castryck, Thomas Decru, Péter Kutas, Abel Laval, Christophe Petit, Yan Bo Ti
2025 J jnl
KLPT²: Algebraic Pathfinding in Dimension Two and Applications.
IACR Cryptol. ePrint Arch.
Wouter Castryck, Thomas Decru, Péter Kutas, Abel Laval, Christophe Petit, Yan Bo Ti
2025 — conf
Orient Express: Using Frobenius to Express Oriented Isogenies.
LATINCRYPT
Wouter Castryck, Riccardo Invernizzi, Gioella Lorenzon, Jonas Meers, Frederik Vercauteren
2025 J jnl
Orient Express: Using Frobenius to Express Oriented Isogenies.
IACR Cryptol. ePrint Arch.
Wouter Castryck, Riccardo Invernizzi, Gioella Lorenzon, Jonas Meers, Frederik Vercauteren
2025 J jnl
PRISM: Simple And Compact Identification and Signatures From Large Prime Degree Isogenies.
IACR Cryptol. ePrint Arch.
Andrea Basso, Giacomo Borin, Wouter Castryck, Maria Corte-Real Santos, Riccardo Invernizzi, Antonin Leroux, Luciano Maino, Frederik Vercauteren, Benjamin Wesolowski
2025 — conf
PRISM: Simple and Compact Identification and Signatures from Large Prime Degree Isogenies.
PKC (3)
Andrea Basso, Giacomo Borin, Wouter Castryck, Maria Corte-Real Santos, Riccardo Invernizzi, Antonin Leroux, Luciano Maino, Frederik Vercauteren, Benjamin Wesolowski
2024 J jnl
Breaking and Repairing SQIsign2D-East.
IACR Cryptol. ePrint Arch.
Wouter Castryck, Mingjie Chen, Riccardo Invernizzi, Gioella Lorenzon, Frederik Vercauteren
2024 C conf
Generalized Class Group Actions on Oriented Elliptic Curves with Level Structure.
WAIFI
Sarah Arpin, Wouter Castryck, Jonathan Komada Eriksen, Gioella Lorenzon, Frederik Vercauteren
2024 J jnl
Generalized class group actions on oriented elliptic curves with level structure.
IACR Cryptol. ePrint Arch.
Sarah Arpin, Wouter Castryck, Jonathan Komada Eriksen, Gioella Lorenzon, Frederik Vercauteren
2024 — conf
SQIsign2D-East: A New Signature Scheme Using 2-Dimensional Isogenies.
ASIACRYPT (3)
Kohei Nakagawa, Hiroshi Onuki, Wouter Castryck, Mingjie Chen, Riccardo Invernizzi, Gioella Lorenzon, Frederik Vercauteren
2023 — conf
A Polynomial Time Attack on Instances of M-SIDH and FESTA.
ASIACRYPT (7)
Wouter Castryck, Frederik Vercauteren
2023 J jnl
A polynomial-time attack on instances of M-SIDH and FESTA.
IACR Cryptol. ePrint Arch.
Wouter Castryck, Frederik Vercauteren
2023 — conf
An Efficient Key Recovery Attack on SIDH.
EUROCRYPT (5)
Wouter Castryck, Thomas Decru
2023 J jnl
An infinite class of Neumaier graphs and non-existence results.
J. Comb. Theory A
Aida Abiad, Wouter Castryck, Maarten De Boeck, Jack H. Koolen, Sjanne Zeijlemaker
2023 — conf
Weak Instances of Class Group Action Based Cryptography via Self-pairings.
CRYPTO (3)
Wouter Castryck, Marc Houben, Simon-Philipp Merz, Marzio Mula, Sam van Buuren, Frederik Vercauteren
2023 J jnl
Weak instances of class group action based cryptography via self-pairings.
IACR Cryptol. ePrint Arch.
Wouter Castryck, Marc Houben, Simon-Philipp Merz, Marzio Mula, Sam van Buuren, Frederik Vercauteren
2022 J jnl
An efficient key recovery attack on SIDH (preliminary version).
IACR Cryptol. ePrint Arch.
Wouter Castryck, Thomas Decru
2022 J jnl
Breaking the Decisional Diffie-Hellman Problem for Class Group Actions Using Genus Theory: Extended Version.
J. Cryptol.
Wouter Castryck, Jana Sotáková, Frederik Vercauteren
2022 — conf
Horizontal Racewalking Using Radical Isogenies.
ASIACRYPT (2)
Wouter Castryck, Thomas Decru, Marc Houben, Frederik Vercauteren
2022 J jnl
Horizontal racewalking using radical isogenies.
IACR Cryptol. ePrint Arch.
Wouter Castryck, Thomas Decru, Marc Houben, Frederik Vercauteren
2022 J jnl
On the decisional Diffie-Hellman problem for class group actions on oriented elliptic curves.
CoRR
Wouter Castryck, Marc Houben, Frederik Vercauteren, Benjamin Wesolowski
2022 J jnl
On the decisional Diffie-Hellman problem for class group actions on oriented elliptic curves.
IACR Cryptol. ePrint Arch.
Wouter Castryck, Marc Houben, Frederik Vercauteren, Benjamin Wesolowski
2022 Misc conf
Two Remarks on the Vectorization Problem.
INDOCRYPT
Wouter Castryck, Natan Vander Meeren
2022 J jnl
Two remarks on the vectorization problem.
IACR Cryptol. ePrint Arch.
Wouter Castryck, Natan Vander Meeren
2021 C conf
A Fusion Algorithm for Solving the Hidden Shift Problem in Finite Abelian Groups.
PQCrypto
Wouter Castryck, Ann Dooms, Carlo Emerencia, Alexander Lemmens
2021 J jnl
A fusion algorithm for solving the hidden shift problem in finite abelian groups.
IACR Cryptol. ePrint Arch.
Wouter Castryck, Ann Dooms, Carlo Emerencia, Alexander Lemmens
2021 J jnl
Multiradical isogenies.
IACR Cryptol. ePrint Arch.
Wouter Castryck, Thomas Decru
2021 J jnl
SoK: On the Security of Cryptographic Problems from Linear Algebra.
IACR Cryptol. ePrint Arch.
Carl Bootland, Wouter Castryck, Alan Szepieniec, Frederik Vercauteren
2020 J jnl
A framework for cryptographic problems from linear algebra.
J. Math. Cryptol.
Carl Bootland, Wouter Castryck, Alan Szepieniec, Frederik Vercauteren
2020 — conf
Breaking the Decisional Diffie-Hellman Problem for Class Group Actions Using Genus Theory.
CRYPTO (2)
Wouter Castryck, Jana Sotáková, Frederik Vercauteren
2020 J jnl
Breaking the decisional Diffie-Hellman problem for class group actions using genus theory.
IACR Cryptol. ePrint Arch.
Wouter Castryck, Jana Sotáková, Frederik Vercauteren
2020 C conf
CSIDH on the Surface.
PQCrypto
Wouter Castryck, Thomas Decru
2020 J jnl
Efficiently Processing Complex-Valued Data in Homomorphic Encryption.
J. Math. Cryptol.
Carl Bootland, Wouter Castryck, Ilia Iliashenko, Frederik Vercauteren
2020 J jnl
Hash functions from superspecial genus-2 curves using Richelot isogenies.
J. Math. Cryptol.
Wouter Castryck, Thomas Decru, Benjamin Smith
2020 — conf
Radical Isogenies.
ASIACRYPT (2)
Wouter Castryck, Thomas Decru, Frederik Vercauteren
2020 J jnl
Radical isogenies.
IACR Cryptol. ePrint Arch.
Wouter Castryck, Thomas Decru, Frederik Vercauteren
2020 — conf
Rational Isogenies from Irrational Endomorphisms.
EUROCRYPT (2)
Wouter Castryck, Lorenz Panny, Frederik Vercauteren
2019 J jnl
A Framework for Cryptographic Problems from Linear Algebra.
IACR Cryptol. ePrint Arch.
Carl Bootland, Wouter Castryck, Alan Szepieniec, Frederik Vercauteren
2019 J jnl
CSIDH on the surface.
IACR Cryptol. ePrint Arch.
Wouter Castryck, Thomas Decru
2019 J jnl
Hash functions from superspecial genus-2 curves using Richelot isogenies.
CoRR
Wouter Castryck, Thomas Decru, Benjamin Smith
2019 J jnl
Hash functions from superspecial genus-2 curves using Richelot isogenies.
IACR Cryptol. ePrint Arch.
Wouter Castryck, Thomas Decru, Benjamin Smith
2019 J jnl
Rational isogenies from irrational endomorphisms.
IACR Cryptol. ePrint Arch.
Wouter Castryck, Lorenz Panny, Frederik Vercauteren
2018 — conf
CSIDH: An Efficient Post-Quantum Commutative Group Action.
ASIACRYPT (3)
Wouter Castryck, Tanja Lange, Chloe Martindale, Lorenz Panny, Joost Renes
2018 J jnl
CSIDH: An Efficient Post-Quantum Commutative Group Action.
IACR Cryptol. ePrint Arch.
Wouter Castryck, Tanja Lange, Chloe Martindale, Lorenz Panny, Joost Renes
2018 J jnl
Efficiently Processing Complex-Valued Data in Homomorphic Encryption.
IACR Cryptol. ePrint Arch.
Carl Bootland, Wouter Castryck, Ilia Iliashenko, Frederik Vercauteren
2018 — conf
Homomorphic SIM ^2 D Operations: Single Instruction Much More Data.
EUROCRYPT (1)
Wouter Castryck, Ilia Iliashenko, Frederik Vercauteren
2018 J jnl
On the Security of the Multivariate Ring Learning with Errors Problem.
IACR Cryptol. ePrint Arch.
Carl Bootland, Wouter Castryck, Frederik Vercauteren
2018 — conf
Translating Between the Roots of the Identity in Quantum Computers.
ISMVL
Wouter Castryck, Jeroen Demeyer, Alexis De Vos, Oliver Keszöcze, Mathias Soeken
2017 A conf
Faster Homomorphic Function Evaluation Using Non-integral Base Encoding.
CHES
Charlotte Bonte, Carl Bootland, Joppe W. Bos, Wouter Castryck, Ilia Iliashenko, Frederik Vercauteren
2017 J jnl
Faster Homomorphic Function Evaluation using Non-Integral Base Encoding.
IACR Cryptol. ePrint Arch.
Charlotte Bonte, Carl Bootland, Joppe W. Bos, Wouter Castryck, Ilia Iliashenko, Frederik Vercauteren
2017 J jnl
Homomorphic SIM
IACR Cryptol. ePrint Arch.
Wouter Castryck, Ilia Iliashenko, Frederik Vercauteren
2017 J jnl
Hypersurfaces in weighted projective spaces over finite fields with applications to coding theory.
CoRR
Yves Aubry, Wouter Castryck, Sudhir R. Ghorpade, Gilles Lachaud, Michael E. O'Sullivan, Samrith Ram
2017 — conf
Privacy-Friendly Forecasting for the Smart Grid Using Homomorphic Encryption and the Group Method of Data Handling.
AFRICACRYPT
Joppe W. Bos, Wouter Castryck, Ilia Iliashenko, Frederik Vercauteren
2016 J jnl
On error distributions in ring-based LWE.
LMS J. Comput. Math.
Wouter Castryck, Ilia Iliashenko, Frederik Vercauteren
2016 J jnl
On the tightness of the error bound in Ring-LWE.
IACR Cryptol. ePrint Arch.
Wouter Castryck, Ilia Iliashenko, Frederik Vercauteren
2016 J jnl
Privacy-friendly Forecasting for the Smart Grid using Homomorphic Encryption and the Group Method of Data Handling.
IACR Cryptol. ePrint Arch.
Joppe W. Bos, Wouter Castryck, Ilia Iliashenko, Frederik Vercauteren
2016 — conf
Provably Weak Instances of Ring-LWE Revisited.
EUROCRYPT (1)
Wouter Castryck, Ilia Iliashenko, Frederik Vercauteren
2016 J jnl
Provably Weak Instances of Ring-LWE Revisited.
IACR Cryptol. ePrint Arch.
Wouter Castryck, Ilia Iliashenko, Frederik Vercauteren
2015 J jnl
The lattice size of a lattice polygon.
J. Comb. Theory A
Wouter Castryck, Filip Cools
2014 J jnl
Constraints on counterexamples to the Casas-Alvero conjecture and a verification in degree 12.
Math. Comput.
Wouter Castryck, Robert Laterveer, Myriam Ounaïes
2014 J jnl
Curves in characteristic 2 with non-trivial 2-torsion.
Adv. Math. Commun.
Wouter Castryck, Marco Streng, Damiano Testa
2012 J jnl
Moving Out the Edges of a Lattice Polygon.
Discret. Comput. Geom.
Wouter Castryck
2011 J jnl
Toric forms of elliptic curves and their arithmetic.
J. Symb. Comput.
Wouter Castryck, Frederik Vercauteren
2008 J jnl
A Shortened Classical Proof of the Quadratic Reciprocity Law.
Am. Math. Mon.
Wouter Castryck
2008 — conf
Computing Zeta Functions in Families of Ca, b.
ANTS
Wouter Castryck, Hendrik Hubrechts, Frederik Vercauteren
2008 J jnl
Efficient arithmetic on elliptic curves using a mixed Edwards-Montgomery representation.
IACR Cryptol. ePrint Arch.
Wouter Castryck, Steven D. Galbraith, Reza Rezaeian Farashahi
2006 J jnl
Computing Zeta Functions of Nondegenerate Curves.
IACR Cryptol. ePrint Arch.
Wouter Castryck, Jan Denef, Frederik Vercauteren