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Математические методы криптографии
The difference relations and impossible differentials construction for the KB-256 algorithm
V. M. Fomichevabc, A. V. Kurochkinad, A. B. Chuhnoea a "Security Code", Moscow
b Federal Research Center "Computer Science and Control" of Russian Academy of Sciences, Moscow
c Financial University under the Government of the Russian Federation, Moscow
d Moscow Institute of Physics and Technology (National Research University), Dolgoprudny, Moscow Region
e National Research University "Higher School of Economics", Moscow
Аннотация:
In this paper, new results of the analysis of the KB 256-3 block cipher algorithm are outlined. We set up a difference relation with probability 1 for the six-round algorithm under study and propose a key recovery method using this difference relation for the nine-round KB 256-3 algorithm. We construct an impossible differential for the full-round algorithm.
Ключевые слова:
differential cryptanalysis, impossible differentials.
Образец цитирования:
V. M. Fomichev, A. V. Kurochkin, A. B. Chuhno, “The difference relations and impossible differentials construction for the KB-256 algorithm”, ПДМ. Приложение, 2022, no. 15, 73–77
Образцы ссылок на эту страницу:
https://www.mathnet.ru/rus/pdma584 https://www.mathnet.ru/rus/pdma/y2022/i15/p73
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