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Izvestiya of Saratov University. Physics, 2009, Volume 9, Issue 2, Pages 34–48
DOI: https://doi.org/10.18500/1817-3020-2009-9-2-34-48 (Mi isuph63) 		 
Physics

Cryptography from the physicist's point of view

Yu. N. Zaiko

Volga Region Academy of Public Service of a name of P. A. Stolypina
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DOI: https://doi.org/10.18500/1817-3020-2009-9-2-34-48
Abstract: The results of treating of crypto algorithms such as DES (USA) and GOST 28147-89 (Russia) with the help of nonlinear dynamics methods are presented. Point maps which are generated by the blocks of substitutions (S-blocks) are investigated. The phenomenon of return is demonstrated. The ergodicity of these maps are treated. An estimation of quality of S-block could be made by maps of first return. The results of statistical treating of S-blocks are presented.
Keywords: cryptography, substitution, mapping, cycle, nonlinear dynamics, return, ergodicity, key, S-box, dynamical chaos, avalanche effect, permutation.
Document Type: Article
UDC: 530.182
Language: Russian
Citation: Yu. N. Zaiko, “Cryptography from the physicist's point of view”, Izv. Sarat. Univ. Physics, 9:2 (2009), 34–48
Citation in format AMSBIB
\Bibitem{Zai09}
\by Yu.~N.~Zaiko
\paper Cryptography from the physicist's point of view
\jour Izv. Sarat. Univ. Physics
\yr 2009
\vol 9
\issue 2
\pages 34--48
\mathnet{http://mi.mathnet.ru/isuph63}
\crossref{https://doi.org/10.18500/1817-3020-2009-9-2-34-48}
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