Shibboleth: an open source solution to resource sharing

Shibboleth is a project of the National Science Foundation Internet2 Middleware Initiative. Its aim is to develop an open, standards-based solution to the needs for organizations to exchange information about their users in a secure, and privacy-preserving manner. Libraries and academic institutions see an increasing need for providing protected and validated access to online resources they produce, license, purchase, or share. Vendors and publishers are also interested in providing models of access that are different from the traditional IP-based, proxy server and username/password authentication. Researchers and teachers who use the web extensively have rapidly growing requirements for the exchange of information that gives participants certain rights as well as privacy.