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Sicherheit moderner Kryptosysteme

Sicherheit moderner Kryptosysteme

          
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About the Book

Facharbeit (Schule) aus dem Jahr 2012 im Fachbereich Mathematik - Angewandte Mathematik, Note: 1,17, Sprache: Deutsch, Abstract: 1)Neuartige Entschlüsselungsverfahren Was ist das Interessante an der Sicherheit eines modernen Kryptosystems? Ist die Sicherheit nicht, wie jeher, der Status Quo im Rennen zwischen "Verschlüssler" und "Entschlüssler"? Das trifft natürlich weiterhin zu, aber mit dem feinen Unterschied, dass sich die Herangehensweise, einen Geheimtext zu dechiffrieren, durch moderne Computer-Algorithmen geändert hat. Auch in der Kryptografie hat die digitale Revolution alle Karten neu gemischt. Tausendfach, millionenfach höhere Rechenkapazitäten eröffnen heute für die Kryptographie ganz neue Möglichkeiten. Das zeigt sich bei Methoden der Verschlüsselung sowie Entschlüsselung. Diese modernen Systeme scheinen mit den herkömmlichen Methoden der Kryptographie nichts mehr gemeinsam zu haben. In der heutigen Zeit legen wir weder Zettel um Stäbe noch verschieben wir Alphabete gegeneinander; wir tippen Passwörter in Computer und verschlüsseln, entschlüsseln. Dabei ist die Sicherheit der Methoden jetzt weniger transparent. Doch genau diese Transparenz wäre nötig, denn Kryptosysteme werden heutzutage von jedem verwendet, sei es als Passwortspeicher, Festplattenverschlüsselung oder unbewusst am Geldautomaten. Diese Arbeit hat deshalb das Ziel, dieses Sicherheitsbewusstsein erneut zu schärfen. In diesem Zusammenhang werden deshalb die sicherheitsrelevanten Bestandteile eines Kryptosystems, der Algorithmus, die Schlüssellänge und das Passwort, auf ihre Angreifbarkeit untersucht und einfache "Handgriffe" genannt, um die Sicherheit des gesamten Systems zu gewährleisten. Dabei wird zwangsläufig die Frage aufkommen, durch was sich "Sicherheit" definiert. Zwei Axiome werden dieses Problem jedoch universell lösen. Zuletzt soll ein kleiner Ausblick auf zukünftige technische Entwicklungen ein Gefühl davon vermitteln, wie schnell ein heute sicheres System schon morgen als v


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Product Details
  • ISBN-13: 9783656435549
  • Publisher: Grin Publishing
  • Binding: Paperback
  • Language: German
  • Returnable: N
  • Spine Width: 2 mm
  • Width: 152 mm
  • ISBN-10: 3656435545
  • Publisher Date: 11 Jun 2013
  • Height: 229 mm
  • No of Pages: 28
  • Series Title: German
  • Weight: 91 gr


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