I decided to write an applet as I run a technical challenge/puzzle site and wanted to create a tool to help users along the way. You can view the work in progress here:
http://sabrefilms.co.uk/store/app.php I am aware however that since java 6 update 24, copy/paste to/from applets to the main system clipboard has been disabled due to security measures, which is understandable.
I have considered signing the applet to create a policy file allowing clipboard access, however I would prefer it if the user wouldn't have to go through the process of verifying a signed applet (My regular users trust the site anyway but that isnt the point ;) )
I thought about creating a HTML field where the user can enter their string, have this saved to a temporary plaintext on the server, then read in by the applet, doing the same in reverse for output, but this would require an extra step for the user to import/export data.
Do you have any suggestions you can offer around this? Is a signed applet really the way to go?