ulogin
uLogin is a PHP library for developing login and authentication systems, and it provides protection for sites using it. uLogin provides methods and classes for secured user sessions, password storage and logins. It has multiple measures to counter different kinds of online and offline attacks, as well as to limit damage in case of a breach.
For further description, usage and documentation, please refer to the project website at http://ulogin.sourceforge.net.
If you incorporate uLogin into any of your projects, please drop me a mail to ultim@users.sourceforge.net.