Sentinel - A framework agnostic authentication & authorization system.

Sentinel is a PHP 5.4+ fully-featured authentication & authorization system. It also provides additional features such as user roles and additional security features. Sentinel is a framework agnostic set of interfaces with default implementations, though you can substitute any implementations you see fit.
Its fetures include:

• Authentication.
• Authorization.
• Registration.
• Users & Roles Management.
• Driver based permission system.
• Flexible activation scenarios.
• Reminders (password reset).
• Inter-account throttling with DDoS protection.
• Custom hashing strategies.
• Multiple sessions.
• Multiple login columns.
• Integration with Laravel.
• Allow use of multiple ORM implementations.
• Native facade for easy usage outside Laravel.
• Interface driven (your own implementations at will).