OSUser

OSUser is a module of the OpenSymphony framework designed to provide a simple to use API for user-management. This API provides the access to the following functions:

• Credentials

The process of verifying that the user is whom they say they are.

• Access Control

Determining whether a user is allowed to perform a certain task.

• Profile

Personal details and data associated with the user.

• Management

Allowing the underlying data to be modified.

http://www.opensymphony.com/osuser/