Is there a standard for stego yet? I just added stego and de-stego filters to my pbmplus image toolkit, using a simple protocol I made up on the spot. Now I'm wondering if I should make them compatible with existing stego tools.
There appear to be two existing steganography packages for images. One is "jsteg", a Unix-based system which stores data in JFIF- compliant JPEG images; it is based on version 4 of the cjpeg/djpeg package. The other is "Stego", a Mac-based system which stores data in Mac PICT files (I think---I don't have a Mac to examine it). "jsteg" is available in the Cypherpunks FTP archive in the applications subdirectory as the original jpegsrc package, plus the patches, plus a README file. However, you might be better off tracking down the "Stego" sources since "jsteg" stores its data in a rather odd way (see the docs for more information). Derek Derek Lynn Upham University of British Columbia upham@cs.ubc.ca Computer Science Department ============================================================================= "Ha! Your Leaping Tiger Kung Fu is no match for my Frightened Piglet Style!"