[WM]: Steganography with backdoor.

[Paul a <pavelco2003@yahoo.com>]

Hello guys.

I'm a graduate student majoring in steganography.

Currently I research steganogarphy with backdoor. It means that stegosystems may contain "backdoor" - universal key that allows you
(= CIA, for example) to extract messages from intercepted traffic regardless what key is used for stego embedding. The requirement
is that the key is difficult to derive from the publicly known stegosystem description. This application of steganography seems to
be attractive for specialised governmental agencies. The opposite problem is how to guarantee that a stegosystem (designed by
someone else) contains no "backdoors". In this case the ordinary user can be sure that the emedded message (using some secret, known
only to  the sender and the receiver) cannot be read by the curious governmental agency.
 
 Have anybody heard of publications on this issue?

Good luck.
Paul.



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