December 2010
Intermediate to advanced
363 pages
12h 21m
English
book
Pro PHP Security: From Application Security Principles to the Implementation of XSS Defenses, Second Edition
by Chris Snyder, Michael Southwell, Thomas Myer
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Recommended Hash Functions
Because hashing is irreversible, it can't be used to store or transfer information. But it is an excellent method of error detection, in which case it can reveal whether a chunk of data is or is not what was expected. If, as in the case of passwords, the content of the data is in fact less important than its integrity, such functions are very useful.
MD5
The Message Digest (MD) algorithm, developed by the same Ron Rivest who was a key player in the creation of RSA encryption, was defined in 1992 in RFC 1321 (available at http://www.ietf.org/rfc/rfc1321.txt) as a means to calculate a 128-bit digest of any message of arbitrary length. It was designed to be extremely fast computationally, as indeed it is. Currently version ...
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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.