On XSEDE, what is Single Sign-On?
Single Sign-On (SSO) is an authentication method based on Grid Security Infrastructure (GSI), part of the Globus toolkit, used by the Extreme Science and Engineering Discovery Environment (XSEDE).
For accessing XSEDE digital services, your SSO credentials are the same as your XSEDE User Portal username and password. After you authenticate using SSO, you will be recognized by all XSEDE services on which you have accounts, without having to enter your login information for each service.
The easiest way to use SSO is via the XSEDE User Portal, but you can also use SSO via a desktop client, or with an X.509 certificate. For instructions, see the login quick start in the TeraGrid User Support archives.
Note: If your XSEDE allocation includes time on a digital service at the National Institute of Computational Sciences (NICS), you won't be able to access the service using SSO until you activate your NICS account. Additionally, access to Nautilus (NICS) requires the use of an RSA One Time Password (OTP) token, which you will receive in the mail after you have activated your account and verified your user information.
Note: If your XSEDE allocation includes time on a resource at the Texas Advanced Computing Center (TACC), you won't be able to use SSO until you have activated your TACC account. TACC will email you a welcome message that includes a link to the TACC User Portal and instructions for activating your account.
This document was developed with support from the National Science Foundation (NSF) under Grant No. 0503697 to the University of Chicago and subcontracted to Indiana University. Additional support was provided by IU through its participation in the TeraGrid, which is supported by the NSF under Grants No. 0833618, SCI451237, SCI535258, and SCI504075. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the NSF.
This document was developed with support from National Science Foundation (NSF) grant OCI-1053575. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the NSF.
Last modified on January 25, 2012.
