The Central Authentication Service project, more commonly referred to as CAS is an authentication system originally created by Yale University to provide a trusted way for an application to authenticate a user.

CAS provides enterprise single sign-on service:

  • An open and well-documented protocol
  • An open-source Java server component
  • A library of clients for Java, .Net, PHP, Perl, Apache, uPortal, and others
  • Integrates with uPortal, BlueSocket, TikiWiki, Mule, Liferay, Moodle and others
  • Community documentation and implementation support
  • An extensive community of adopters

News

CAS 4.0.1 Release

The release includes many bug fixes, improvements and new features.

CAS 3.5.3 Release

The CAS development team is pleased to announce the release of CAS 3.5.3. This release includes several bug fixes. 

Serbo-Croatian Translation of CAS Protocol

We are pleased to announce that we have Serbo-Croatian translation of the CAS Protocol documentation.

CAS Server 3.4.11 Release

The CAS development team is pleased to announce the release of 3.4.11.

CAS Server 3.4.10 (and 3.4.9) released

We're pleased to announce both CAS Server 3.4.9 and CAS Server 3.4.10.

Archive: Jasig CAS Documentation Initiative

2010 discussion of CAS documentation initiative.