Oblivious S-functions and Their Security against Rotational Cryptanalysis
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Дата
2025
Автори
Науковий керівник
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Видавець
Igor Sikorsky Kyiv Polytechnic Institute
Анотація
This paper considers a specific class of ARX primitives: oblivious S-functions, which are distinguishedby their computational states being independent of each other. We present generic analytical expressionsfor the rotation probabilities of oblivious S-functions, which characterize security against rotationalcryptanalysis. We also examile particular classes of oblivious S-functions, including generalizedNORX-like mappings and LRX-analogues for multiplication by three. For these mappings, we providenumerical values of the rotation probabilities.
Опис
Ключові слова
symmetric cryptography, ARX cryptosystems, rotational cryptanalysis, S-function
Бібліографічний опис
Yakovliev, S. Oblivious S-functions and Their Security against Rotational Cryptanalysis / Serhii Yakovliev, Ihor Voloshyn // Theoretical and Applied Cybersecurity: scientific journal. – 2025. – Vol. 7, No. 3. – P. 5-12. – Bibliogr.: 17 ref.