April 2017
Intermediate to advanced
350 pages
8h 35m
English
Content preview from Applied Network Security
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What is a hash?
When hackers talk about passing the hash, they are referring to the hashed value of the password that was obtained from an exploited device. The process of hashing a password works by utilizing a cryptographic algorithm that transforms plaintext into a fixed length string of characters. This string of characters is called a fingerprint. A method known as salting makes cracking a hashed password much harder. Salting a hashed password works by adding a random string of characters before the password is hashed. A hash is considered to be a one-way function, because it cannot be reversed.
Hash tables are often used to index data for fingerprinting. An example of an MD5 hash looks like this, 8743b52063cd84097a65d1633f5c74f5. An ...
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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.
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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.