December 2004
Intermediate to advanced
1008 pages
21h 40m
English
Content preview from Microsoft® Visual C#® .NET 2003 UnleashedBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Secret Key (Symmetric) Encryption
Secret key encryption, also called symmetric encryption because of its two-way nature, relies on something called a shared secret or secret key. Before discussing code, consider a hypothetical scenario:
Bob wants to send information to John, but Bob doesn't want anyone to be able to intercept the communication and be able to read the information being sent. To accomplish this, Bob comes up with a secret code that he uses to encrypt his message. Bob makes sure that John has this secret code through some means. When John receives the encrypted message, John can use that same secret key to decrypt the message that Bob sent.
There are two important aspects of this type of encryption:
There is a secret shared between ...
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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.