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A safe serial protection system?

Posted: Mon Jun 11, 2007 5:52 am
by kaisellgren
Hi,

I'd like to make a full and a lite version of my PHP+MySQL script. I have made a successful PayPal and serial number generation system, however, my script is too easy to crack as you just have to change a few values at db.

How would you make a hard to crack serial system? Can you provide me any links, I could not find any resources.

Posted: Mon Jun 11, 2007 6:46 am
by volka
You might be interested in something like Zend Guard.

Posted: Mon Jun 11, 2007 7:36 am
by kaisellgren
volka wrote:You might be interested in something like Zend Guard.
Thanks for the link! Hopefully this does not cover all my PHP code.