Apereo CAS - Enterprise Single Sign On for all earthlings and beyond

Welcome to the home of the Central Authentication Service project, more commonly referred to as CAS. CAS is an enterprise multilingual single sign-on solution for the web and attempts to be a comprehensive platform for your authentication and authorization needs. CAS is an open and well-documented authentication protocol. The primary implementation of the protocol is an open-source Java server component by the same name hosted here, with support for a plethora of additional authentication protocols and features.