August 2017
Intermediate to advanced
336 pages
11h 39m
English
Content preview from System Forensics, Investigation, and Response, 3rd Edition
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Steganography
Steganography is the art and science of writing hidden messages. The goal is to hide information so that even if it is intercepted, it is not clear that information is hidden there. The most common method today is to hide messages in pictures. One of the most common methods of performing this technique is by using the least significant bit (LSB) method (when the last bit or least significant bit is used to store data). The LSB method depends on the fact that computers store things in bits and bytes. Now consider for a moment an 8-bit byte. For example, consider 11111111. If you convert this to decimal numbers, it equals 255. Now if you change the first 1 to a 0, you get 01111111. This equals 127 in decimal numbers, which is a ...
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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.