Symmetrische und asymmetrische Verschlüsselungsverfahren samt Dateiverschlüsselung. Eine Analyse von VeraCrypt
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Studienarbeit aus dem Jahr 2017 im Fachbereich Informatik - IT-Security, Note: 2,0, Fachhochschule Südwestfalen; Abteilung Meschede, Sprache: Deutsch, Abstract: Diese Hausarbeit geht allgemein auf das Thema Verschlüsselung und speziell auf die symmetrische und asymmetrische Verschlüsselung ein. Praktisch soll dies mit der Vorstellung der Dateiverschlüsselung mit Hilfe des Programms VeraCrypt geschehen. Das Thema der IT-Sicherheit spielt in unserer heutigen Welt eine immer grö ere Rolle. Dadurch, dass immer mehr Daten digital vorliegen und bearbeitet werden, ist auch sicherzustellen, dass diese nicht verändert oder entwendet werden können. Dies kann mit Hilfe der Verschlüsselung passieren und kontrolliert werden. Da das Thema Privatpersonen und auch Unternehmen betrifft, hat die Bundesregierung sowohl in der "Digital Agenda" als auch in der "Charta zur Stärkung vertrauenswürdiger Kommunikation" das Ziel ausgegeben, Deutschland zum "Verschlüsselungsstandort Nr.1" zu machen. Schützenswert an unseren Daten sind wie eben schon aufgezählt besonders die Vertraulichkeit, Authentizität, Integrität und Verfügbarkeit. Diese Punkte können durch verschiedene Vorfälle beeinträchtigt werden. Als erstes einmal sind unbeabsichtigte Fehler und Ereignisse zu nennen wie: "höhere Gewalt, technische Fehler, Fahrlässigkeit, Programmierfehler, Verschlei oder Havarien". Natürlich können auch beabsichtige Angriffe eine Bedrohung darstellen, hierzu zählen: "Abhören, Manipulation, Zerstören von Informationen und auch die Zerstörung von Software oder Hardware". Auch das BSI (Bundesamt für Sicherheit und Informationstechnik) nennt in Ihrem IT Grundschutzkatalog unter dem Unterpunkt Gefährdungskatalog die Punkte: "Höhere Gewalt, Elementare Gefährdungen, organisatorische Mängel, Menschliches Fehlverhalten, Technisches Versagen und Vorsätzliche Handlungen" als gro e Gefahren für die IT-Sicherheit. Angriffsmethoden sind aktive so wie passive Angreifer, Computerviren und Trojaner die im folgende
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