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Apereo CAS - Single Sign On for the Web
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cas-management-webapp Merge branch 'master' into rbac-service-authz
cas-server-compatibility made sure the test-prefix is not needed for test classes
cas-server-core Merge pull request #862 from ufoscout/858_httpclient_async_arg
cas-server-documentation Update
cas-server-extension-clearpass updated NOTICE files
cas-server-integration-ehcache updated NOTICE files
cas-server-integration-jboss updated NOTICE files
cas-server-integration-memcached updated NOTICE files
cas-server-integration-restlet updated NOTICE files
cas-server-support-generic updated NOTICE files
cas-server-support-jdbc updated NOTICE files
cas-server-support-ldap removed unused import
cas-server-support-legacy updated NOTICE files
cas-server-support-oauth updated NOTICE files
cas-server-support-openid updated NOTICE files
cas-server-support-pac4j updated NOTICE files
cas-server-support-radius updated NOTICE files
cas-server-support-rest updated NOTICE files
cas-server-support-saml Merge branch 'master' into rbac-service-authz
cas-server-support-spnego fixed cs issues
cas-server-support-trusted updated NOTICE files
cas-server-support-x509 updated NOTICE files
cas-server-uber-webapp updated NOTICE files
cas-server-webapp-support renamed getter fields
cas-server-webapp moved msg to the bundle
etc updated licences
src updated site refs
travis enabled javadocs publishing again
.gitignore updated to ignore merge leftover files (orig) and ant builds
.travis.yml Allow Travis to use JDK8 in the build matrix CAS-1398: Added file
LICENSE CAS-1101 Update licensing to Apache License, Version 2.0.
NOTICE updated NOTICE files Update
assembly.xml updated licences
checkstyle-rules.xml Merge branch 'master' into rbac-service-authz
checkstyle-suppressions.xml ignore magic number for test
findbugs-rules.xml fixed unit tests
pom.xml Merge pull request #859 from Unicon/hibernate-upgrade
tasks.xml updated licences

Central Authentication Service (CAS)


Welcome to the home of the Central Authentication Service project, more commonly referred to as CAS. The Central Authentication Service (CAS) is the standard mechanism by which web applications should authenticate users.

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

Build Build Status Codeship Status for Jasig/cas Coverage Status Dependency Management Issue Stats Issue Stats

It is recommended to build and deploy CAS locally using the Maven War Overlay method. This approach does not require the adopter to explicitly download any version of CAS, but rather utilizes Maven's overlay mechanism to combine CAS original artifacts and local customizations to further ease future upgrades and maintenance.

Download Maven Central

  • Binary releases may be downloaded from here.
  • CAS artifacts are published through the Maven Central Repository.
  • A snapshot of the codebase's master branch may be downloaded from here.
  • Snapshot artifacts are also published through the Sonatype snapashots repository under the group id org.jasig.cas.
  • The codebase may also be cloned using a Git client via the following command:
git clone

Note: If building CAS from the source, running the test cases currently requires an active Internet connection. Please see the maven docs on how to disable the tests.



  • CAS Addons is an open source collection of useful CAS server extensions.


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