stegedetect & Variola's Suitcase

Tyler Durden camera_lumina at
Tue Sep 7 08:22:28 PDT 2004

So here's the 'obvious' question:

How fast can dedicated hardware run if it were a dedicated Stegedetect 

In other words, how easy would it be for NSA, et al to scan 'every' photo on 
the internet for Stego traces? (And then, every photo being emailed?)

And then, how fast can someone write a worm that will make every photo 
stored on a harddrive look like it's been stegoed?


>From: Sunder <sunder at>
>To: cypherpunks at
>Subject: stegedetect - looks like "we" need better mice
>Date: Tue, 7 Sep 2004 05:53:08 -0400 (edt)
>Steganography Detection with Stegdetect
>Stegdetect is an automated tool for detecting steganographic content in
>images. It is capable of detecting several different steganographic
>methods to embed hidden information in JPEG images. Currently, the
>detectable schemes are
>     * jsteg,
>     * jphide (unix and windows),
>     * invisible secrets,
>     * outguess 01.3b,
>     * F5 (header analysis),
>     * appendX and camouflage.
>Stegbreak is used to launch dictionary attacks against JSteg-Shell, JPHide
>and OutGuess 0.13b.
>Stegdetect and Stegbreak have been developed by Niels Provos.
>  + ^ + :"Our enemies are innovative and resourceful, and so are we.  /|\
>   \|/  :They never stop thinking about new ways to harm our country /\|/\
><--*-->:and our people, and neither do we." -G. W. Bush, 2004.08.05 \/|\/
>   /|\  :                                                             \|/
>  + v + :    War is Peace, freedom is slavery, Bush is President.

Check out Election 2004 for up-to-date election news, plus voter tools and 

More information about the cypherpunks-legacy mailing list