AU3-Licensing

Licensing options for AutoIT script/program.

##Features

• Asks for a serial (in a TaskDialog box)
• Links to your website to get one
• Stores it in the registry, hashed
• Checks it at each launch

##How does it work ?

• Launch : checks the registry key for the serial
  • If it is there : continue launching
  • If it is not there : asks for it in a Taskdialog box :
    • Link to your website, in order to buy the software (sends the unique computer ID in the URL)
    • Ability to enter the serial
    • Or, close the software

The serial is encrypted using the unique computer ID (generated by Windows and stored in a registry key. Remains the same if the computer sees some components replaced, and if Windows is updated). Once decrypted, it looks like this : UNIQUECOMPUTERID/EXPIRATIONDATE The EXPIRATIONDATE is checked at each launch of the program, and there is a reminder as the date gets closer.

##Todo

• Security improvement : provide your own key (which will be compiled in the executable) to enhance security through a double-decrypting system
• Security improvement : Connect to server to check if the key exists, and if the key is still valid
• Moar options : Select if the key should be saved in the registry or in a file, select which algorithm to use when crypting/decrypting key, add a PHP/MySQL server backend for key generation (rather than the KeyGen.au3 script)

Some links : http://www.autoitscript.com/forum/topic/49208-software-license-key-and-keygen/ http://www.autoitscript.com/forum/topic/31020-xprotecau3-automated-protect-and-get-paid http://www.autoitscript.com/forum/topic/76898-licensing-validation-remote/ http://www.autoitscript.com/forum/topic/145433-my-version-of-a-robust-license-key-system-example-code/