Oblivious S-functions and Their Security against Rotational Cryptanalysis

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dc.contributor.authorYakovliev, Serhii
dc.contributor.authorVoloshyn, Ihor
dc.date.accessioned2026-03-02T12:56:23Z
dc.date.available2026-03-02T12:56:23Z
dc.date.issued2025
dc.description.abstractThis 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.
dc.format.pagerangeP. 5-12
dc.identifier.citationYakovliev, 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.
dc.identifier.doihttps://doi.org/10.20535/tacs.2664-29132025.3.345545
dc.identifier.orcid0000-0002-5647-5043
dc.identifier.urihttps://ela.kpi.ua/handle/123456789/79139
dc.language.isoen
dc.publisherIgor Sikorsky Kyiv Polytechnic Institute
dc.publisher.placeKyiv
dc.relation.ispartofTheoretical and Applied Cybersecurity: scientific journal, Vol. 7, No. 3
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/deed.uk
dc.subjectsymmetric cryptography
dc.subjectARX cryptosystems
dc.subjectrotational cryptanalysis
dc.subjectS-function
dc.subject.udc004.056.55:512.6
dc.titleOblivious S-functions and Their Security against Rotational Cryptanalysis
dc.typeArticle

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Theoretical and Applied Cybersecurity: scientific journal, Vol. 7, No. 3