Shibboleth allows users to securely send trusted information about themselves to remote resources. This information may then be used for authentication, authorization, content personalization, and enabling single sign-on across a broad range of services from many different providers.
For high-level information to get started, please read Understanding Shibboleth.
All deployers should make sure to subscribe to to the
shibboleth-announce mailing list to be sure of seeing important security announcements.