Refined Method of Impossible Differentials Search with Application to Kalyna-Like Ciphers
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Дата
2025
Автори
Науковий керівник
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Назва тому
Видавець
Igor Sikorsky Kyiv Polytechnic Institute
Анотація
This work addresses the problem of evaluating the security of block ciphers against impossible dif-ferential cryptanalysis, with a particular focus on Kalyna-like ciphers. Based on formalized meth-ods —specifically the Wu-Wang method — this work introduces refined rules tailored to AES- andKalyna-like ciphers. These refinements simplify compatibility checks by replacing large systems oflinear equations with computationally efficient conditions. Experimental results have identified severalclasses of impossible differentials for three-round versions of certain Kalyna cipher variants, therebydemonstrating the security of full-round ciphers against this method of cryptanalysis
Опис
Ключові слова
symmetric cryptography, block ciphers, impossible differential cryptanalysis, Wu-Wangmethod, AES, Kalyna cipher
Бібліографічний опис
Turchyn, A. Refined Method of Impossible Differentials Search with Application to Kalyna-Like Ciphers / Andrii Turchyn, Serhii Yakovliev // Theoretical and Applied Cybersecurity: scientific journal. – 2025. – Vol. 7, No. 1. – P. 5-13. – Bibliogr.: 14 ref.