Matthias Pfefferle

Will Norris

OpenID is an <a href="http://openid.net/" rel="nofollow ugc">open standard</a> that allows users to authenticate to websites without having to create a new password. This plugin allows users to login to their local WordPress account using an OpenID, as well as enabling commenters to leave authenticated comments with OpenID. The plugin also includes an OpenID provider, enabling users to login to OpenID-enabled sites using their own personal WordPress account. <a href="https://wordpress.org/plugins/xrds-simple/" rel="ugc">XRDS-Simple</a> is required for the OpenID Provider and some features of the OpenID Consumer.
Developer documentation, which includes all of the public methods and hooks for integrating with and extending the plugin, can be found <a href="http://wiki.diso-project.org/wordpress-openid-api" rel="nofollow ugc">here</a>.

OpenID

Allows WordPress to provide and consumer OpenIDs for authentication of users and comments.

ider

With this plugin you can provide login and registration process using the IDer Service. 
An additional “Login with IDer” button will appears along the regular one.
How it works? 
1. First of all you need to create a profile in the <a href="http://ider.com/" title="IDer website" rel="nofollow ugc">IDer</a> website 
2. Clicking the button a redirect to the IDer server will display a QR Code 
3. To scan it you need to download the free IDer App from the App Store or Google Play depending which cell phone you own. 
 Or just scan the QR code with any QR Code reader and you will be redirect to the download page. 
 Provide few infos and you are ready to scan the QR code 
4. After that the IDer App will prompt you for the missing data required to complete the login/registration process. 
 Confirming the data your browser will automatically log you in and show you which info the website saved.

IDer Login for WordPress

This plugin provides functionality to register and connect to your WordPress via IDer Service.

OpenID vs IDer Login for WordPress