alexisabarca

With this very simple plugin you can use the blog URL to authenticate with OpenID using an another OpenID provider. 
called Delegation.
In order to maximize performance the vars are contained in plugin file rather than storing in a database.
Due to security issue (https://wordpress.org/news/2011/06/passwords-reset/) php file is gpg signed, ID 7ED1BC0C.

Open ID Delegate

This plugin adds the necessary tags to be able to use your blog URL as OpenID address using another OpenID provider

smartfin

This plugin enables your users to sign-in with their Google/Yahoo/Facebook and 
other social identities. Our key design point is simplicity, you can get your 
site up in literally under 60 seconds, and there is no 3rd party sites to 
visit or configure.
Our service is completely free for low traffic sites. If your site grows in 
the future, we also offer advanced features for a moderate price, 
such as the following:
<ul>
<li>Extended profile attribute capturing</li>
<li>Pre-built integration, with email marketing, and content management systems</li>
<li>Programmable integration, with various language support</li>
<li>Full identity management suite, with user, role, and permissions management</li>
</ul>
We believe our implementation, focusing on simplicity, is superior to others 
in the same space. But we are still new and would appreciate your 
feedback. Please feel free to comment/rate us here on WordPress, or 
write us for whatever issues you encounter at help@sumilux.com

Social Sign-In

This plugin enables your users to sign-in with their Google/Yahoo/Facebook and other social identities. Our key design point is simplicity, you can ge …

Open ID Delegate vs Social Sign-In