Maybe of interest to some, from
http://neworder.box.sk/

Steganography in Computer Graphics

OgGiZ writes: Steganography is the way spies hide data inside a file stream. It is both a complex and useful art requiring a lot of knowledge in file formats. There are several programs doing the job but I will present here the theories beyond the softwares. In the PDF file, you will find the results of six painful months of personal research on the topic with ideas and conclusions. Of course, any comments are welcome !

http://neworder.box.sk/files/steganography.pdf

Kayaker

Good find, Kayaker.

I can see the article being a bit 'mathsy' for many, but I'm right at home. If you're not scared of a little statistics and combinatorics, be sure to take a peek. I'll certainly be adding this to the archive.

Admiral