April 2002
Intermediate to advanced
816 pages
20h 56m
English
book
.NET Framework Security
by Brian A. LaMacchia, Sebastian Lange, Matthew Lyons, Rudi Martin, Kevin T. Price
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Using Keyed Hash Functions
Keyed hash functions are a subset of cryptographic hash functions that provide data authentication services in addition to integrity protection. As their name implies, keyed hash functions work by mixing a shared secret key with the to-be-hashed message to generate a hash value. That is, the hash value h = f(M, k), where f() is the keyed hash function, M is the to-be-hashed message (of arbitrary length), and k is the secret key. Changing either the message or the secret key will change the computed hash value.
Keyed hash functions are represented in the .NET Framework as subclasses of the KeyedHashAlgorithm abstract class, which itself is a subclass of HashAlgorithm. Because every KeyedHashAlgorithm is a HashAlgorithm ...
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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.