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.
43 E-Mail-Verschlüsselung- und Signierung (Schicht 7)
E-Mail gilt als die populärste Internet-Anwendung überhaupt – noch vor dem World Wide Web. Die Anzahl der E-Mail-Nutzer geht weltweit inzwischen in die Milliarden. Gerade E-Mail ist jedoch auch ein äußerst interessanter Dienst für einen Bösewicht wie Mallory. Denn per E-Mail werden oft sensible Daten verschickt, und man weiß nie, wer so alles mitlesen oder gar manipulieren kann (siehe Abschnitt 3.3.1). Es lohnt sich also, E-Mails zu verschlüsseln und zu signieren.
43.1 Wie E-Mail funktioniert
E-Mail ist eine Kommunikationstechnik, die auf verschiedenen Protokollen beruht. Diese gehören naturgemäß ...
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