Protection of revlet

DrScott · Post by **DrScott** » Thu Jul 30, 2009 5:20 am

When a revlet is created and linked to in an HTML web page, what prevents a user from downloading the revlet? How does one protect their revlets from free distribution?

Thank you.

Dr. Scott Steinman

Mark · Post by **Mark** » Thu Jul 30, 2009 8:02 am

Dear Scott,

The protection of the revLet is not in being unable to download and redistrivute it, but in the special encryption and the inability to change it. Display your name and URL in the revLet, for a start. It should also be possible to validate the revLet when it starts up.

Best,

Mark

arombauts · Post by **arombauts** » Thu Jul 30, 2009 9:24 pm

Mark wrote: It should also be possible to validate the revLet when it starts up.

How would you validate?

Janschenkel · Post by **Janschenkel** » Fri Jul 31, 2009 6:21 am

A very simple way would be to "callback" to a cgi-script on your own site: given that revlets by default can only contact the site from which they were downloaded, this should fail if the user downloaded it to his desktop or uploaded it to a different server of his own.

Jan Schenkel.