A. V. Kurochkin, A. Chuhno, D. A. Bobrovskiy, “Construction of the difference relation for the KB-256 algorithm”, Prikl. Diskr. Mat. Suppl., 2023, Issue 16,Pages <nobr>56

Mathematical Methods of Cryptography

Construction of the difference relation for the KB-256 algorithm

A. V. Kurochkin^ab, A. Chuhno^ca, D. A. Bobrovskiy^ad

^a "Security Code", Moscow
^b Moscow Institute of Physics and Technology (National Research University), Dolgoprudny, Moscow Region
^c Moscow Institute of Electronics and Mathematics — Higher School of Economics
^d Financial University under the Government of the Russian Federation, Moscow

Abstract: The difference relation for the KB-256 algorithm has been constructed. The probability of executing the difference relation for 15 out of 16 rounds is not less than $2^{-134}$.

Keywords: differential, linear methods of cryptographic analysis, KB-256.

UDC: 519.719.2

DOI: 10.17223/2226308X/16/15