Problems, solutions and experience of the first international student’s Olympiad in cryptography

Problems, solutions and experience of the first international student’s Olympiad in cryptography Full article

Journal

Прикладная дискретная математика (Prikladnaya Diskretnaya Matematika)
ISSN: 2071-0410 , E-ISSN: 2311-2263

Output data

Year: 2015, Volume: 29, Number: 3, Pages: 41-62 Pages count : 22

Authors

Агиевич Сергей ¹ , Gorodilova Anastasiya Aleksandrovna ² , Kolomeets Nikolai Aleksandrovich ^2,3 , Nikova Svetla ⁴ , Preneel Bart ⁴ , Rijmen Vincent ⁴ , Shushuev Georgii Innokentʹevich ^2,3 , Tokareva Natalia Nikolaevna ^2,3 , Vitkup V.A. ²

Affiliations

1	Belarusian State University, Minsk, Belarus
2	Sobolev Institute of Mathematics
3	Novosibirsk State University, Novosibirsk, Russia
4	University of Leuven, KU Leuven, Belgium

A detailed overview of the problems, solutions and experience of the first international student’s Olympiad in cryptography, NSUCRYPTO’2014, is given. We start with the rules of participation and the description of rounds. All 15 mathematical problems of the Olympiad and their solutions are considered in detail. The problems are about differential characteristics of S-boxes, S-box masking, relations between cyclic rotation and additions modulo 2 and 2n , special linear subspaces in F n 2 , the number of solutions of the equation F(x)+F(x+a) = b over the finite field F2n and APN functions. Some unsolved problems in symmetric cryptography are also considered.

Агиевич С. , Gorodilova A.A. , Kolomeets N.A. , Nikova S. , Preneel B. , Rijmen V. , Shushuev G.I. , Tokareva N.N. , Vitkup V.A.
Problems, solutions and experience of the first international student’s Olympiad in cryptography
Прикладная дискретная математика (Prikladnaya Diskretnaya Matematika). 2015. V.29. N3. P.41-62.

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