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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">ntv</journal-id><journal-title-group><journal-title xml:lang="ru">Научно-технический вестник информационных технологий, механики и оптики</journal-title><trans-title-group xml:lang="en"><trans-title>Scientific and Technical Journal of Information Technologies, Mechanics and Optics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2226-1494</issn><issn pub-type="epub">2500-0373</issn><publisher><publisher-name>Университет ИТМО</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17586/2226-1494-2022-22-1-74-81</article-id><article-id custom-type="elpub" pub-id-type="custom">ntv-262</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>КОМПЬЮТЕРНЫЕ СИСТЕМЫ И ИНФОРМАЦИОННЫЕ ТЕХНОЛОГИИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>COMPUTER SCIENCE</subject></subj-group></article-categories><title-group><article-title>Редукция набора детекторов LSB с заданной достоверностью</article-title><trans-title-group xml:lang="en"><trans-title>Reduction of LSB detectors set with definite reliability</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3878-4221</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Солодуха</surname><given-names>Р. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Solodukha</surname><given-names>R. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Солодуха Роман Александрович — кандидат технических наук, доцент, доцент</p><p>sc 57201778092</p><p>Воронеж, 394065</p></bio><bio xml:lang="en"><p>Roman A. Solodukha — PhD, Associate Professor, Associate Professor</p><p>sc 57201778092</p><p>Voronezh, 394065</p></bio><email xlink:type="simple">standartal@list.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4170-2861</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Перминов</surname><given-names>Г. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Perminov</surname><given-names>G. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Перминов Геннадий Вадимович — кандидат технических наук, доцент</p><p>Воронеж, 394006</p></bio><bio xml:lang="en"><p>Gennadiy V. Perminov — PhD, Associate Professor</p><p>Voronezh, 394006</p></bio><email xlink:type="simple">perminovgv@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6270-6787</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Атласов</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Atlasov</surname><given-names>I. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Атласов Игорь Викторович — доктор физико-математических наук, профессор, профессор</p><p>sc 57201775678</p><p>Москва, 117997</p></bio><bio xml:lang="en"><p>Igor V. Atlasov — D.Sc., Full Professor</p><p>sc 57201775678</p><p>Moscow, 117997</p></bio><email xlink:type="simple">mathematic1@rambler.ru</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Воронежский институт МВД России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Voronezh Institute of the Ministry of Internal Affairs of Russia</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Российский государственный университет правосудия (центральный филиал)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Russian State University of Justice (Central Branch)</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Московский университет МВД России имени В.Я. Кикотя</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Kikot Moscow University of the Ministry of Internal Affairs of Russia</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>16</day><month>12</month><year>2024</year></pub-date><volume>22</volume><issue>1</issue><fpage>74</fpage><lpage>81</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Солодуха Р.А., Перминов Г.В., Атласов И.В., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Солодуха Р.А., Перминов Г.В., Атласов И.В.</copyright-holder><copyright-holder xml:lang="en">Solodukha R.A., Perminov G.V., Atlasov I.V.</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://ntv.elpub.ru/jour/article/view/262">https://ntv.elpub.ru/jour/article/view/262</self-uri><abstract><p>Предмет исследования. Предложено решение задачи сокращения набора стеганоаналитических методов определения размера вложения в пространственную область изображения, на примере количественных детекторов Least Significant Bits (LSB) стеганографии. Предположено, что методы могут отслеживать одни и те же закономерности в контейнерах, вследствие чего результаты их работы могут коррелировать. Представлены результаты разработки и тестирования методики редукции набора методов с учетом точности и достоверности для снижения вычислительной сложности стеганоаналитической экспертизы. Метод. Теоретическая база предложенного решения — приближение регрессии первого рода линейной регрессией второго рода для многомерных случайных величин. Для верификации результатов выполнен численный эксперимент. В качестве источника контейнеров применена коллекция BOSSbase. Вложения реализованы с шагом 10 % путем автоматизации стеганографических программ freeware-сегмента CryptArkan и The Third Eye c помощью AutoIt. Использованы стеганоаналитические методы Weighted Stego, Sample Pairs, Triples analysis, Asymptotically Uniformly Most Powerful detection, Pair of Values. Датасеты получены в среде MATLAB, программа реализована на языке Python. Для обеспечения воспроизводимости эксперимента датасеты и программный код представлены в Kaggle. Основные результаты. На основе экспериментальных данных рассчитаны интервальные оценки коррелированности методов для различных размеров стегановложения. Разработана методика в составе математической модели, алгоритма реализации модели и компьютерной программы. Практическая значимость. Предложенную методику целесообразно применять в задачах, где необходимо учитывать точность и достоверность. Такие оценки востребованы при осуществлении экспертно-криминалистической деятельности по вопросам, допускающим вероятностные выводы. С помощью данных оценок аналитик может варьировать количество методов в зависимости от доступных вычислительных мощностей и временных рамок исследования.</p></abstract><trans-abstract xml:lang="en"><p>The article focuses on decreasing the set of steganalytical methods that determine the payload value in the image spatial domain using quantitative detectors of Least Significant Bits (LSB) steganography. It is supposed that methods can trace the same image regularities, and hence their results can correlate. The work presents the results of the development and testing of the technique for reducing the set of steganalytical methods taking into account the accuracy and reliability to the diminution of the computational complexity of steganalytical expertise. The theoretical basis of the proposed solution is the approximation of regression of the first kind by linear regression of the second kind for multivariate random variables. To verify the results, the computational experiment was performed. The payloads were implemented in 10 % increments by automating the freeware steganographic programs CryptArkan and The Third Eye with AutoIt. The steganalytical methods, such as Weighted Stego, Sample Pairs, Triples analysis, Asymptotically Uniformly Most Powerful detection, Pair of Values, were used. The datasets were built in the MATLAB environment; the program was implemented in Python. For the experiment’s reproducibility, the datasets and program code are provided in Kaggle. Interval estimates of methods correlation are calculated based on experimental data for various payload values. The developed technique includes a mathematical model, an algorithm for implementing the model, and a computer program. The proposed technique can be applied in those tasks where accuracy and reliability are taken into account. One of the subject areas demanding such assessments is computer forensics dealing with expertise with probabilistic conclusions. These estimates allow the analyst to vary the number of methods depending on the available computing resources and the time frame of the research.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>стеганоанализ</kwd><kwd>редукция набора методов</kwd><kwd>достоверность</kwd><kwd>LSB</kwd><kwd>стеганоаналитическая экспертиза</kwd><kwd>регрессия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>steganalysis</kwd><kwd>reduction of methods set</kwd><kwd>reliability</kwd><kwd>LSB</kwd><kwd>steganalytical expertise</kwd><kwd>regression</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">Жижина М.В. Судебно-почерковедческая экспертиза документов / под ред. проф. Е.П. Ищенко. М.: ЮРЛИТИНФОРМ, 2006. 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