From the course: Securing Windows Server 2019
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Cryptography - Windows Server Tutorial
From the course: Securing Windows Server 2019
Cryptography
- [Instructor] In order to help understand how encryption works within a server system, you need to first understand a very basic concept called cryptography. Now, to put a very simple definition on this word cryptography, we're going to say that it's the concept of applying an algorithm to plaintext in order to convert it over into ciphertext. So what do we mean by that? Well, I have an example here for you. Let's say we have an algorithm that says go up two letters, and let's say we have the word sample which is just in plaintext, right, just sample. We can read that easy. What we do is we take each letter and we increase by two letters. So if we take the letter s in sample, and we go up two letters, you go s, t, u, right, that's two letters, so you put a u where the s is. Take the a, go up two letters, b, c. You put a c where the a is, and we could continue through this process and you'll see that the word sample becomes the word, I don't know if I want to try to pronounce it, I…
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