The Quantum Distinguishing Attacks on Generalized Feistel Schemes

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dc.contributor.authorZvychaina, A.
dc.contributor.authorFesenko, A.
dc.date.accessioned2023-11-22T05:06:21Z
dc.date.available2023-11-22T05:06:21Z
dc.date.issued2023
dc.description.abstractIt turned out that in addition to problems with classical asymmetric cryptography in the post-quantum period, there are certain doubts about the strength of symmetric cryptographic schemes. This paper demonstrates that on Type III Generalized Feistel Scheme (GFS), by selectively fixing specific parts of the plaintext at the input to the GFS, it is possible to reduce the problem of distinguishing between random text and encrypted output of the same GFS to the Simon problem through different approaches. Our method enables the cracking of the cipher up to d rounds in polynomial time, while a more sophisticated approach based on different formulas from other paths of the cipher can crack d + 1 rounds with the same time complexity in quantum adversary model. These distinct approaches yield varying results in terms of scheme security, indicating the potential to break more rounds in the GFS using the same methodology.uk
dc.format.pagerangePp. 32-38uk
dc.identifier.citationZvychaina, A. The Quantum Distinguishing Attacks on Generalized Feistel Schemes / A. Zvychaina, A. Fesenko // Theoretical and Applied Cybersecurity : scientific journal. – 2023. – Vol. 5, Iss. 1. – Pp. 32–38. – Bibliogr. 12 ref.uk
dc.identifier.doihttps://doi.org/10.20535/tacs.2664-29132023.1.279992
dc.identifier.urihttps://ela.kpi.ua/handle/123456789/62356
dc.language.isoenuk
dc.publisherIgor Sikorsky Kyiv Polytechnic Instituteuk
dc.publisher.placeKyivuk
dc.relation.ispartofTheoretical and Applied Cybersecurity: scientific journal, Vol. 5, No. 1uk
dc.subjectGeneralized Feistel Schemesuk
dc.subjectQuantum Distinguishing Attackuk
dc.subjectSimon’s Problemuk
dc.subject.udc004.056.55uk
dc.titleThe Quantum Distinguishing Attacks on Generalized Feistel Schemesuk
dc.typeArticleuk

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Theoretical and Applied Cybersecurity: scientific journal, Vol. 5, No. 1