
    <p> More than ten years ago I studied the lecture recordings of
      "Introduction to Cryptography" <a
        href="https://yewtu.be/channel/UC1usFRN4LCMcfIV7UjHNuQg">Introduction
        to Cryptography by Christof Paar - Invidious</a> by Professor
      Paar <a href="https://en.wikipedia.org/wiki/Christof_Paar">Christof
        Paar - Wikipedia</a>, which are absolutely amazing! These
      lectures will learn you how the most popular encryption algorithms
      work.</p>
    <p>The scripts I mentioned in their current versions are:</p>
    <ul>
      <li><a
          href="https://codeberg.org/oxo/tool/src/branch/main/gpg-gen-key">tool/gpg-gen-key
          at main - oxo/tool - Codeberg.org</a></li>
      <li><a
          href="https://codeberg.org/oxo/tool/src/branch/main/gpg-bu-key">tool/gpg-bu-key
          at main - oxo/tool - Codeberg.org</a></li>
      <li><a
          href="https://codeberg.org/oxo/tool/src/branch/main/gpg-pass-vfy">tool/gpg-pass-vfy
          at main - oxo/tool - Codeberg.org</a></li>
    </ul>
    <p>Search the history for commit 95408d31c2 (gpg-gen-key) and
      dd608f9bd6 (gpg-bukey and gpg-pass-vfy) for the versions at the
      moment of recording.</p>