Research
My interests lie in the domains of algebraic geometry and number theory, and applications of these to cryptography. More specific keywords:
- Algebraic curves.
- Curve-based cryptography (discrete-log based or isogeny-based).
- Lattice-based cryptography (learning with errors and applications to fully homomorphic encryption).
- Toric geometry and the combinatorics of lattice polytopes.

Biography
- Born in Poperinge (Belgium), 1980.
- High school degree at Sint-Jozefsinstituut Torhout (Belgium), 1998.
- Licentiate in Mathematics at KU Leuven, 2002.
- PhD in Mathematics at KU Leuven, 2006.
- Postdoc at ESAT/COSIC, KU Leuven, 2007-2008.
- Postdoc at the Department of Mathematics, KU Leuven, 2008-2014.
- Postdoc at the Department of Mathematics, University of Ghent, 2014-2016 (part-time as of 2015).
- Postdoc at the Laboratoire Painlevé, Université de Lille-1, 2016-2017 (part-time).
- Habilitation at Université de Lille-1, 2017.
- Postdoc at ESAT/COSIC, KU Leuven, as of 2015 (part-time until 2017).
Publications
Information
- Contact information
- Room: B01.10
- Personal website: http://homes.esat.kuleuven.be/~wcastryc/