I have Java Applet that is free for educational use, but I would like to license (currently free) for...

[WTH]

...commercial usage.

I don't want to restrict with a node locked license, and I'm sure it
wouldn't be particularly robust, but I'd like to simply restrict an
applet to running on a given domain via a license key retrieved from
the server.

For example, I'd like to have a server at www.something.com and it
contain a license key containing encrypted information that equates to
www.something.com. Ignoring the issues with encrypting in an applet
(or any bytecode compiled resource), can an applet figure out what
domain it is being served from, or just the IP address it is served
from? I can experiment with this, but I don't have a static IP
address right now (ordered one.)

Cheers,

WTH

[Roedy Green]

On Mon, 4 Jan 2010 07:48:31 -0800 (PST), WTH <wthn...@gmail.com>
wrote, quoted or indirectly quoted someone who said :

see http://mindprod.com/jgloss/obfuscate.html
and http://mindprod.com/jgloss/registrationkey.html

Masically you need to hide an obfuscated copy of the registration
domain in the Applet's resource. Use the System.properties for
discovering various system properties you might want to restrict.

see http://mindprod.com/applet/wassup.html

--
Roedy Green Canadian Mind Products
http://mindprod.com
The question of whether Machines Can Think... is about as relevant as the question of whether Submarines Can Swim.
~ Edsger Wybe Dijkstra (born: 1930-05-11 died: 2002-08-06 at age: 72)