January 2020
Intermediate to advanced
368 pages
9h 46m
English
Content preview from Black Hat Go
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13HIDING DATA WITH STEGANOGRAPHY
The word steganography is a combination of the Greek words steganos, which means to cover, conceal, or protect, and graphien, which means to write. In security, steganography refers to techniques and procedures used to obfuscate (or hide) data by implanting it within other data, such as an image, so it can be extracted at a future point in time. As part of the security community, you’ll explore this practice on a routine basis by hiding payloads that you’ll recover after they are delivered to the target.
In this chapter, you’ll implant data within a Portable Network Graphics (PNG) image. You’ll first explore the ...
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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.