December 2019
Beginner
510 pages
12h 7m
English
Content preview from Networking Fundamentals
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Encryption
Encryption is the mechanism of taking data that is readable (clear text) and putting it through a mathematical calculation (algorithm) to produce data that is not readable (cipher text). The data is encrypted with what is known as a key and is deciphered using a key. The longer the key, the harder the encryption should be to crack. If the data is encrypted and decrypted using the same key, this is known as symmetric encryption. If you use one key to encrypt the data and it can only be decrypted by a second, mathematically-linked key, then you are using asymmetric encryption. For this exam, you do not need to know anything more than that as far as the background of encryption is concerned. Let's discuss the encryption techniques ...
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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.Julian F.
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.
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.Amir M.
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.