November 2022
Beginner
400 pages
15h 6m
English
book
Ethical Hacking: Techniques, Tools, and Countermeasures, 4th Edition
by Michael G. Solomon, Sean-Philip Oriyano
Content preview from Ethical Hacking: Techniques, Tools, and Countermeasures, 4th Edition
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What Is an Algorithm or Cipher?
Before exploring the different types of algorithms and ciphers available, it is important to understand what they are and how they work. First, the terms algorithm and cipher are used interchangeably to describe the formula or process used to perform encryption.
To understand an algorithm, consider the Caesar cipher discussed earlier. If the system were broken down into an algorithm and its components, it would look like this:
where:
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X represents the original plaintext item.
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Y represents the ciphertext of the original plaintext.
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N is the key used during the process.
With this algorithm, to encrypt data, ...
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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.
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.