April 2016
Intermediate to advanced
944 pages
27h 6m
German
Content preview from Kryptografie
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22 Real-World-Attacken
Wenn Mallory versucht, eine Verschlüsselung von Alice und Bob anzugreifen, dann muss er sich in der Regel nicht alleine auf mathematische und statistische Werkzeuge verlassen. Auch über einen geklauten PC oder einen geschickt programmierten Computervirus kann Mallory an den Schlüssel herankommen. Solche Angriffe, die nicht gegen ein Verfahren an sich, sondern gegen dessen Einsatz in der Praxis gerichtet sind, werden Real-World-Attacken genannt.
22.1 Seitenkanalangriffe
Im Jahr 1995 überraschte der US-Kryptograf Paul Kocher die Fachwelt. Mit einer neuartigen Methode gelang es ihm, einer RSA-Implementierung innerhalb einiger ...
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