I've looked through the documentation, I've tried downloading various example code, and I've tried hacking various permutations. After a full day's worth of work, I'm spent, and throwing in the towel. So now I'm begging for some help. Can someone please post a PHP class or function, wherein I can simply verify that the ping to my IPN script is legitimate, using signature version 2?
Thank you so much.
Zack
Hard to tell but this might be what you need
http://aws.amazon.com/code/1691
I believe that this supports signature version 2