title: Single Sign On for Wordpress and OpenCart
body: <p>I'm Looking for a SSO for integrating a Wordpress/Opencart website together.
  I'm not looking for OpenCart as a primary login and neither the Wordpress as primary login. But a common 3rd party authentication method that both Wordpress and OpenCart can use.</p>
  
  <p>While researching a little I've found <a href="http://www.opencart.com/index.php?route=extension/extension/info&amp;extension_id=9133" rel="nofollow">this</a> plugin. But this one uses OpenCart as a primary authentication method.</p>
  
  <p>I'm looking for something like <a href="http://mobilenations.com" rel="nofollow">Mobile Nations</a> is using for their common authentication.</p>