Researchers Combat Terrorists by Rooting Out Hidden Messages

Steve Schear s.schear at
Tue Feb 1 23:21:31 PST 2005

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.


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