In-app purchase signature verification with PHP openssl

Question

In an attempt to follow some of the security guidelines for in-app purchase here: http://developer.android.com/guide/market/billing/billing_best_practices.html I am trying to

Answer 1

Have a look at OAuth.php I think you can get it at googlecode.com It uses openssl_verify() I think the $data they are using is an URL

http://oauth.googlecode.com/svn/code/php/OAuth.php