The GridShib project is based at National Centre for Supercomputing Applications (at the University of Illinois) and at the University of Chicago (Argonne National Laboratory).
"The goal of the project is to allow for interoperability between the Globus Toolkit and the Shibboleth Identity Federation system."
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"GridShib is an integration of Globus Toolkit and Shibboleth. The complete software package consists of two plugins, one for Globus Toolkit and another for Shibboleth. With both plugins installed and configured, a GT Grid Service Provider (SP) may securely request user attributes from a Shibboleth Identity Provider."