April 2016
Intermediate to advanced
944 pages
27h 6m
German
Content preview from Kryptografie
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27 Verteilte Authentifizierung
Alices Arbeitgeber Krypt & Co. betreibt drei Serveranwendungen: ein Webportal, eine Datenbank und ein Zeiterfassungssystem. Auf alle drei kann Alice von ihrem PC aus über ein lokales Netz zugreifen. Selbstverständlich ist die Kommunikation zwischen PC und Server stets verschlüsselt, und Alice muss sich vor der Nutzung jeweils authentisieren. Leider ist das etwas umständlich: Das Webportal fordert ein mindestens achtstelliges Passwort mit Sonderzeichen, die Datenbank ist durch eine Smartcard gesichert, und die Zeiterfassung verlangt ein Passwort mit Sonderzeichen. Alice muss sich also mit drei unterschiedlichen Authentifizierungsmethoden ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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