Jan Schoone

"Sinds we god, religie en zingeving hebben afgeschaft, staan we als kwetsbare mechaniekjes in de wereld. We zijn gereduceerd tot onze biologie. We offeren het volle leven op om het vege lijf te redden, omdat het vege lijf het enige is dat ons nog kenmerkt."
              - Ilja Leonard Pfeijffer, [nrc: April 14, 2020]

Theorem: There are only finitely many useful numbers.

As of October 2018 I am working as a PhD-student in the Digital Security group at the iCIS institute of the Radboud University. The research is conducted under the supervision of prof. dr. Joan Daemen and part of the ESCADA project.
I am researching algebraic attacks on cryptosystems and investigating properties of maps with cryptographic importance.

In the past, my research interests have been finite rings, polynomial mappings and Mathieu-Zhao spaces. On these subjects I have written my Bachelor's and Master's thesis at Radboud University under supervision of dr. Arno van den Essen.

Teaching:

I am actively involved in the Introduction to Cryptography course (NWI-IBC023) as a Teaching Assistant.

Previous teaching includes (as student assistant):

Commutative Algebra
Famous Problems in Mathematics
Group Theory 2
Introduction to Graph Theory
Mathematics 2 for Artificial Intelligence
New Number Systems
Rings and Fields
Forensic Statistics
Fractals
Knot Theory
Quaternions
Set Theory
LaTeX: crash course

Presentations:

[20/11/12]: Algebraic and Higher-Order Differential Cryptanalysis of Pyjamask-96 [pdf] FSE 2020 (5-minute introductory presentation)
[20/11/05]: Algebraic and Higher-Order Differential Cryptanalysis of Pyjamask-96 [pdf] FSE 2020 online
[20/02/28]: Algebraic and Higher-Order Differential Cryptanalysis of Pyjamask-96 at Digital Security Lunch Colloquium
[19/11/28]: Some algebraic views on chi [pdf] ESCADA-meeting
[19/03/01]: On the division property [pdf] Radboud Crypto Reading Group
[18/08/30]: Mathieu-Zhao spaces of finite rings [pdf] Master's Thesis presentation

Publications:

[20/05/07]: Algebraic and Higher-Order Differential Cryptanalysis of Pyjamask-96 [pdf] Transactions on Symmetric Cryptology
[18/08/28]: Around the Jacobian Conjecture [pdf] Master's Thesis

Contact Info: