On Tue, 2005-02-01 at 23:21 -0800, Steve Schear wrote:
At 02:07 PM 2/1/2005, Tyler Durden wrote:
Counter-stego detection.
Seems to me a main tool will be a 2-D Fourier analysis...Stego will certainly have a certain "thumbprint", depending on the algorithm. Are there certain images that can hide stego more effectively? IN other words, these images should have a lot of spectral energy in the same frequency bands where Stego would normally show.
Images that ideal for hiding secret messages using stego are those that by default contain stego with no particular hidden content. A sort of Crowds approach to stego.
If you really want to send secret messages, just send it in the chaff in spam. Everyone is programmed to ignore it or filter it out. -- "When a student reads in a math book that there are no absolutes, suddenly every value he's been taught is destroyed. And the next thing you know, the student turns to crime and drugs." - Mel Gabler - Censor