Oleksandr KazymyrovPh.D. started in: 2011
Year of graduation: 2014
COINS consortium member: University of Bergen
Supervised by: Tor Helleseth, Oleksandr Kholosha, Lilya Budaghyan
Research area: Foundations of Information Security
Project title: Generation Methods of Basic Components for Symmetric Cryptosystems
Project description: Vectorial Boolean functions play very important role in providing high-level security for modern ciphers. They are used in cryptography as nonlinear combining or filtering functions in the pseudo-random generators (stream ciphers) and as substitution boxes (S-boxes) providing confusion in block ciphers. Up to date an important question of generation of vectorial Boolean functions with optimal characteristics to prevent all known types of attacks remains open. There are many criteria that must be taken into account for generating new parameters for modern symmetric encryption algorithms.