Central Authentication Service (CAS) provides a single sign-on protocol for the web. CAS enables applications to authenticate a user without needing to access the user's security credentials (login and password).
The name CAS also refers to a software package that implements this protocol. To use the Magnolia CAS module, you will need to download the appropriate software. The CAS authentication system was originally created by Yale University to provide a secure means for an application to authenticate a user, and as such, still forms part of the JASIG project.
Using CAS with Magnolia allows you to integrate Magnolia into your company's ecosystem, making it more transparent.