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Features
CAS is a full-featured open source enterprise single sign on service that has been deployed at universities, non-profits, non-government organizations, governments, small businesses, and large corporations in many countries including the United States, Canada, France, Spain, United Kingdom, Portugal, Turkey, Italy, Germany, China, India, Japan, Australia, and New Zealand.
CAS supports the CAS1 and CAS2 protocols allowing for simple single sign on, as well as proxy authentication. The addition of SAML 1.1 allows for the exchange of attributes between the CAS server and CAS clients. Partial SAML2 support allows for integration with Google Apps for Education, allowing universities that have deployed CAS to take advantage of institutional GMail.
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