> Can anyone reference a portable steganography application? By this, I mean > can you point to a specific steg app that has been designed/modified to run > from an .exe, without installation?
I'm not aware of such stego executable (that should be considered any safe), but the well-known (and one of the best) algorithm M5 from Andreas Westfeld comes in the fashion of a Java package -- I guess it should be considered portable, maybe more than an exe file? http://wwwrn.inf.tu-dresden.de/~westfeld/f5.html See also Neil Johnson page for starters: http://www.jjtc.com/Security/stegtools.htm Some more googling yields Hide-in-Picture for a 'portable' exe: http://sourceforge.net/project/showfiles.php?group_id=42816&package_id=34960&release_id=67439 To some extent, you might also consider this project aiming at developping a live CD (is that portable enough?) with built-in anonymizing tools (which is definitely to be considered a form of steganography IMO): http://kaos.to/cms/projects/releases/anonym.os-livecd.html Final thoughts: - current media-oriented stego tools only deal with first-order statistics of the media. Powerful classifiers like SVM do help a lot in distinguishing modifications in higher-order statistics that are caused by stego tools. See works by Jessica Fridrich et al. - by 'portable' don't you mean 'ready to work out of the box'? If so, just consider building a static executable and distribute it freely! As a reasonably secure public-key stego tool (at least for first-order statistics), I would use PubliMark -- not yet broken: http://perso.orange.fr/gleguelv/soft/publimark/index.html HTH, François.
