April 2016
Intermediate to advanced
944 pages
27h 6m
German
Content preview from Kryptografie
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.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.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
5 Die Enigma und andere Verschlüsselungsmaschinen
Um das Jahr 1920 begann in der Kryptografie eine neue Ära und gleichzeitig eines der spannendsten Kapitel der Technikgeschichte. Noch im Ersten Weltkrieg hatten die beteiligten Armeen ihre Funksprüche mit Verfahren verschlüsselt, die sich mit Papier und Bleistift durchführen ließen [Schm07/1]. Die Folgen waren oft verheerend, denn praktisch alle damals eingesetzten Chiffren wurden früher oder später geknackt. Der Bedarf an verbesserten Verschlüsselungsverfahren war daher offensichtlich. Nach Kriegsende erkannten verschiedene Tüftler, dass eine sichere Verschlüsselung den Einsatz von Maschinen erforderte. ...
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