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Shibboleth

overview
Shibboleth is a standards based, open source software package for web single sign-on across or within organizational boundaries. It allows sites to make informed authorization decisions for individual access of protected online resources in a privacy-preserving manner. For more information, see the Shibboleth Consortium at http://shibboleth.net/about/.
features
Shibboleth is among the world's most widely deployed federated identity solutions, connecting users to applications both within and between organizations. Every software component of the Shibboleth system is free and open source. Shibboleth is an open-source project that provides Single Sign-On capabilities and allows sites to make informed authorization decisions for individual access of protected online resources in a privacy-preserving manner. For more detailed information, see the Shibboleth Consortium at http://shibboleth.net/about/basic.html.
fees
Shibboleth is developed as open source software and is released under the Apache Software License. More information about the individual components is available on the Shibboleth Consortium Products page.
faq

What's Shibboleth?

Shibboleth is a standards based, open source software package for web single sign-on across or within organizational boundaries. It allows sites to make informed authorization decisions for individual access of protected online resources in a privacy-preserving manner.

The Shibboleth software implements widely used federated identity standards, principally the OASIS Security Assertion Markup Language (SAML), to provide a federated single sign-on and attribute exchange framework. A user authenticates with his or her organizational credentials, and the organization (or identity provider) passes the minimal identity information necessary to the service provider to enable an authorization decision. Shibboleth also provides extended privacy functionality allowing a user and their home site to control the attributes released to each application.

The Shibboleth project began as an Internet2 Middleware activity in 2000, and later that year the project connected with the work of the OASIS SAML Working Group. Shibboleth 1.0 was released in 2003, and was quickly adopted by research and education communities worldwide. With SAML 2.0 in 2005 and Shibboleth 2.0 the following year, the SAML standards grew to include all the multi-lateral, metadata driven approaches pioneered by Shibboleth.

Shibboleth is developed as open source software and is released under the Apache Software License. More information about the individual components is available on the Products page.

Shibboleth® is a registered trademark of Internet2®.

To learn more about Shibboleth, visit their website at http://shibboleth.net/.

participate

For more information on participation and resources, see their page at http://shibboleth.net/community/.