[5696] in www-talk@info.cern.ch
Re: Content Provider Problem?
daemon@ATHENA.MIT.EDU (David Berger (Yokozuna))
Mon Sep 19 02:31:02 1994
Date: Mon, 19 Sep 1994 06:14:26 +0200
Errors-To: listmaster@www0.cern.ch
Errors-To: listmaster@www0.cern.ch
Reply-To: dvberger@CS.Berkeley.EDU
From: David Berger (Yokozuna) <dvberger@CS.Berkeley.EDU>
To: Multiple recipients of list <www-talk@www0.cern.ch>
Rob,
It seems that perhaps you misinterpreted what I meant by
"watermarking" data. I *did* mean that the encoded information would
become part of the data and not just be a header/footer that could be
easily stripped off. What accomplishes this reasonably for specific
types of data is an open question. And, how resistant such a mark
would be to tampering is equally unclear.
Work being done at AT&T experiements with shifting lines/words &
manipulating character features to encode a binary signature on a page
of text. I am more interested in "marking" images, video, and audio.
Sorry if I mislead you,
Dave
