Shibboleth, a project of Internet2/MACE, is developing architectures, policy structures, practical technologies, and an open source implementation to support inter-institutional sharing of web resources subject to access controls. In addition, Shibboleth will develop a policy framework that will allow inter-operation within the higher education community.

OpenSAML 1.1 – an Open Source Security Assertion Markup Language implementation. OpenSAML 1.1 is a set of open source Java and C++ libraries that implement the SAML 1.0 and 1.1 specifications.