Universal, standards-based auth provider
Source code for 2FAS Auth Browser Extension
PHP strong authentication library, web interface & CLI, OATH certified
A Java-based LDAP API
Extrect selected entries from LDIF files like grep
Replace/add/delete LDAP attributes online with regular expressions
sed-like modify and convert LDIF files using regular expressions
A simple, personal OpenID provider written in PHP
Simple, unobtrusive authentication for Node.js
Apache LDAP Directory Manager
Facebook authentication strategy for Passport and Node.js.
Token based authentication module for angular.js
Replicates POSIX user credentials over the Internet - NIS replacement
phpbb Multiple domain Single Sign on with wordpress plugin