BitAuth - Authentication and Permissions System

[eluser]danmontgomery[/eluser]
Just wanted to announce I'm releasing BitAuth, which is an authentication and permissions library. You can read more in the user guide, which is available at http://dmontgomery.net/bitauth

Requirements
* PHP 5.1.6+, 5.3+ recommended
* CodeIgniter 2.0+ (BitAuth was built on Reactor)
* MySQL
* php-gmp

Features
* Phpass: BitAuth uses phpass to handle password hashing
* Password complexity rules: Along with minimum and maximum length, specify the required number of:
- Uppercase Characters
- Numbers
- Special Characters
- Spaces
- ... Or, add your own
* Password aging: Require your users to change their passwords at a set interval
* Completely custom userdata: Easily customize BitAuth to include any custom you want. Full name, Nickname, Phone number, Favorite color... You name it!
* Groups and Roles: Create groups, and assign users to your groups. Your roles are set on a group, not a user, so changing roles, whether the scale is large or small, is fast and painless.
* Text-based roles: Simply list your roles in the configuration file, then check against them in your code. BitAuth handles everything in between.

Download
BitAuth is available on GitHub at http://www.github.com/danmontgomery/codeigniter-bitauth. Spark is coming soon.