March 2003
Intermediate to advanced
312 pages
7h 12m
English
Content preview from HTTP Developer’s Handbook
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Digest Authentication
Digest authentication mitigates the risk of exposing the username and password by utilizing a one-way cryptographic algorithm (also commonly called a hash or a message digest). These algorithms are called one-way algorithms because they are practically impossible to reverse. Although this might seem like a bold claim, consider that MD5 (Message Digest 5, a popular one-way algorithm) always returns a 128-bit digest. Thus, if you were to create a message digest of the text of this entire book, it would be 128 bits in length. If it were possible to generate the text of this entire book from a 128-bit message digest, MD5 would be an amazing compression algorithm!
Note
The fact that a message digest cannot be reversed does ...
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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.