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      <title-group>
        <article-title>Historical Ciphers⋆</article-title>
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      <contrib-group>
        <contrib contrib-type="author">
          <string-name>Eugen Antal</string-name>
          <email>eugen.antal@stuba.sk</email>
          <xref ref-type="aff" rid="aff0">0</xref>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Generative AI</string-name>
          <xref ref-type="aff" rid="aff0">0</xref>
        </contrib>
        <aff id="aff0">
          <label>0</label>
          <institution>Slovak University of Technology in Bratislava</institution>
          ,
          <country country="SK">Slovakia</country>
        </aff>
      </contrib-group>
      <pub-date>
        <year>2025</year>
      </pub-date>
      <abstract>
        <p>In this talk, we will delve into the history of ciphers and techniques of cryptanalysis with a specific focus on the territory of present-day Slovakia. Our historical analysis starts with the early modern period, focusing on the role of the Vienna Cipher Ofice within the Austro-Hungarian Empire. Through the study of authentic, encrypted correspondence - specifically between the Esterházy family and the Viennese court - we will demonstrate contemporary research tasks, methodological challenges, and the practical application of artificial intelligence for the processing and decipherment of historical ciphers. Subsequently, we will trace the evolution of ciphers and methods of cryptanalysis within the former Czechoslovakia up to the end of World War II. We will demonstrate the application of metaheuristic algorithms for the general decipherment of these historical ciphers.</p>
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      <title>Acknowledgments</title>
      <p>This research was supported by the project ”Artificial intelligence for encrypted handwritten document
processing”, ”09I05-03-V02-00031” of call ”Support of research projects aimed at digitization of the
economy in TRL levels 1-3”, Call. No. 09I05-03-V02, managed by Research Agency and funded by The</p>
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    <sec id="sec-2">
      <title>Declaration on Generative AI</title>
      <p>The author has not employed any Generative AI tools.
CEUR</p>
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