Which certificate authorities' X.509 certificates can I use to authenticate to PSC systems for GSISSH or Globus services?

Note: After ten years of service to the national science and engineering community, the TeraGrid project has ended. It is succeeded by a new National Science Foundation (NSF) program, the Extreme Science and Engineering Discovery Environment (XSEDE). You should move any data stored on TeraGrid systems to an alternate storage resource. If you have leftover service units on your TeraGrid allocation, or if your research requires further use of high performance computational, visualization, storage, and network resources, consider applying for an allocation on one or more XSEDE digital services.

You may authenticate access to PSC grid resources using an X.509 user certificate issued by any of the TeraGrid-approved certificate authorities (CAs). The current list of TeraGrid-accepted CAs is available at:

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