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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">inform</journal-id><journal-title-group><journal-title xml:lang="ru">Информатика</journal-title><trans-title-group xml:lang="en"><trans-title>Informatics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1816-0301</issn><issn pub-type="epub">2617-6963</issn><publisher><publisher-name>UIIP NASB</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.37661/1816-0301-2020-17-4-36-47</article-id><article-id custom-type="elpub" pub-id-type="custom">inform-1113</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>МАТЕМАТИЧЕСКОЕ МОДЕЛИРОВАНИЕ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MATHEMATICAL MODELING</subject></subj-group></article-categories><title-group><article-title>Цифровая модель генератора псевдослучайных чисел на основе непрерывной хаотической системы</article-title><trans-title-group xml:lang="en"><trans-title>Digital model of a pseudo-random number generator based on a continuous chaotic system</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Дрыбин</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Drybin</surname><given-names>Y. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Дрыбин Евгений Александрович, аспирант, факультет радиофизики и компьютерных технологий</p><p>Минск</p></bio><bio xml:lang="en"><p>Yaugen A. Drybin, Postgraduate Student, Department of Intelligent Systems, Faculty of Radiophysics and Computer Technologies</p><p>Minsk</p></bio><email xlink:type="simple">ydrybin@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Садов</surname><given-names>В. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Sadau</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Садов Сергей Васильевич, аспирант, старший преподаватель кафедры интеллектуальных систем, факультет радиофизики и компьютерных технологий</p><p>Минск</p></bio><bio xml:lang="en"><p>Siarhei V. Sadau, Postgraduate Student, Senior Lecturer, Department  of  Intelligent  Systems,  Faculty  of Radiophysics and Computer Technologies</p><p>Minsk</p><p> </p></bio><email xlink:type="simple">seregasadov@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Садов</surname><given-names>В. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Sadau</surname><given-names>V. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Садов Василий Сергеевич, кандидат технических наук, доцент, профессор кафедры интеллектуальных систем, факультет радиофизики и компьютерных технологий</p><p>Минск</p></bio><bio xml:lang="en"><p>Vasili S. Sadau, Cand. Sci. (Eng.), Associate Professor, Professor of the Department of Intelligent Systems, Faculty of Radiophysics and Computer Technologies</p><p>Minsk</p></bio><email xlink:type="simple">sadov@bsu.by</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Белорусский государственный университет</institution></aff><aff xml:lang="en"><institution>Belarusian State University</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>16</day><month>11</month><year>2020</year></pub-date><volume>17</volume><issue>4</issue><fpage>36</fpage><lpage>47</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Дрыбин Е.А., Садов В.С., Садов В.С., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Дрыбин Е.А., Садов В.С., Садов В.С.</copyright-holder><copyright-holder xml:lang="en">Drybin Y.A., Sadau S.V., Sadau V.S.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://inf.grid.by/jour/article/view/1113">https://inf.grid.by/jour/article/view/1113</self-uri><abstract><p>Показано, что выбор параметра временной дискретизации цифровой модели непрерывной динамической системы с хаотическими режимами на основе ее динамики позволяет управлять характеристиками выходной последовательности, в том числе избегать коротких циклов и периодических режимов поведения. На примере системы Лоренца проведен анализ закона движения хаотической системы, линеаризованной в окрестностях точек устойчивого и неустойчивого равновесия. На основании этого закона выбраны параметры математической модели генератора псевдослучайных чисел. Выходная последовательность чисел, порождаемая предложенным в работе подходом, подвергнута статистическому и корреляционному анализам. Согласно результатам проведенных тестов полученные псевдослучайные последовательности на основе непрерывных хаотических систем обладают статистически случайными свойствами и могут быть использованы в системах стеганографической и криптографической защиты данных.</p></abstract><trans-abstract xml:lang="en"><p>It is shown that the choice of the time sampling parameter of the digital model of a continuous dynamic system with chaotic modes based on its dynamics makes it possible to control the characteristics of the output sequence, including avoiding short cycles and periodic behavior modes. On the example of the Lorentz system, the analysis of the law of motion of a chaotic system, linearized in the vicinity of points of stable and unstable equilibrium, is carried out, on the basis of which the parameters of the mathematical model of the generator of pseudo-random numbers are selected. The output sequence of numbers generated in proposed way is subjected to statistical and correlation analysis. Based on the results of the tests carried out, we can say that the obtained pseudo-random sequences based on continuous chaotic systems have statistically random properties and can be used in steganographic and cryptographic systems.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>временная дискретизация</kwd><kwd>детерминированный хаос</kwd><kwd>система Лоренца</kwd><kwd>случайные последовательности</kwd><kwd>цифровая модель</kwd></kwd-group><kwd-group xml:lang="en"><kwd>time sampling</kwd><kwd>deterministic chaos</kwd><kwd>Lorentz system</kwd><kwd>random sequences</kwd><kwd>digital model</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Шеннон, К. Математическая теория связи / К. Шеннон // Работы по теории информации и кибернетике. – М. : ИИЛ, 1963. – С. 243–332.</mixed-citation><mixed-citation xml:lang="en">Shannon C. A mathematical theory of communication. 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