Earlier, Sergey Goldgaber wrote:
Didn't you mention something along the lines of hiding "---BEGIN PGP" headers by using one-time pad encryption? Or did I wildly misinterpret you?
No. I said that, and I was referring to the case where you have a particular stegonographic technique such as pixel modulation, it could be an idea to place an encrypted header using something like IDEA in CFB that not only encrypts a signature but an identifier so as to know which program actually did the stego, and hence be able to demodulate with that particular technique. Therefore if you had seperate programs, each could interoperate. Even though the essense of stego is to not know a message is hidden in a particular medium, whenever specific software comes out to do certain stego (jpegs etc), I can see NSA spooks adding it onto their short list of s/ware to run across any pictures they get. Stego becomes sort of pseudo-Stego and loses a certain amount of gain it once had (of course, if all you do is Stego an encrypted file without any structure, it'll be safe). My 5c. Matthew. -- Matthew Gream. ph: (02)-821-2043. M.Gream@uts.edu.au. PGPMail and brown paperbags accepted. - Non Servatum - ''weirdo's make the world go around'' - A.Watts