On Wed, Oct 02, 2002, Michael Nordström wrote: > It shouldn't be that complicated to create a desktop tool that can > remove the user ID protection (if you know the used user ID:) and > create an unprotected document.
Actually, all the necessary tools are already available. $ explode --directory=liberate DRM.pdb That will dump the contents of the Plucker document (since the document uses owner ID protection there must be a valid owner_id key in ~/.pluckerrc). The generated HTML documents contains comments that the parser doesn't accept, so we need to fix that, e.g. by running the following, $ cd liberate $ for i in `ls *.html`; do sed "s/<\!--.*--\!>//" $i > $i.new ; \ > mv -f $i.new $i; done Then we just create a new Plucker document (remember to remove the owner_id key from ~/.pluckerrc or you will create a "bad" document again:). $ plucker-build -H default.html -f LiberatedDocument Could put this in a script that handles all of the steps (a nicer solution would be to create a program that removes the owner ID key from all records in a Plucker document and then reassembles them into a Plucker document again; that would make sure that you don't "lose" anything in the conversion). To summarize, using the owner ID protection as a share denial (DRM) solution will not work (unless the users accept it), since anyone that can view such a document can easily remove the "protection" and redistribute an unprotected copy to family and friends. /Mike _______________________________________________ plucker-dev mailing list [EMAIL PROTECTED] http://lists.rubberchicken.org/mailman/listinfo/plucker-dev
