The CILogon project facilitates secure access to CyberInfrastructure (CI).

To log on to the CILogon Service, visit

Services that support access via CILogon include:

CILogon is a research and scholarship service provider in the InCommon federation.

CILogon is an open source project, with source code and downloads hosted at SourceForge and GitHub.

Interested in the CILogon 2.0 platform? Please submit our CILogon 2.0 Inquiry form, and we'll contact you right away!

To cite CILogon in publications, please use:

Jim Basney, Terry Fleury, and Jeff Gaynor, "CILogon: A Federated X.509 Certification Authority for CyberInfrastructure Logon," Concurrency and Computation: Practice and Experience, Volume 26, Issue 13, pages 2225-2239, September 2014.

For more information, please see our Frequently Asked Questions or contact

Latest News

  • Expanding the CILogon IdP List We'll be expanding the list of identity providers (IdPs) at in September 2016 to include an initial set of international (eduGAIN) IdPs and all InCommon IdPs.International ...
    Posted Aug 29, 2016, 11:15 AM by Jim Basney
  • CILogon Enables Streamlined InCommon Login to Globus On February 13, Globus released their new enhanced login method that supports InCommon campus identities via CILogon's OIDC interface. Now Globus users do not need to create a separate ...
    Posted Feb 15, 2016, 6:48 AM by Jim Basney
  • CILogon Supports OpenID Connect for Federated Authentication to Cyberinfrastructure CILogon's new OpenID Connect (OIDC) interface enables cyberinfrastructure (CI), such as Jetstream (via Globus Auth) and Ocean Observatories Initiative, to support federated authentication with InCommon identity providers via a ...
    Posted Jan 20, 2016, 10:36 AM by Jim Basney
Showing posts 1 - 3 of 85. View more »

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This material is based upon work supported by the National Science Foundation under grant numbers 0850557, 0943633, 1053575, 1440609, 1547268, and 1548562 and by the Department of Energy under award number DE-SC0008597.
Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the United States Government or any agency thereof.
The CILogon project is sometimes referred to as CILogin, but the official name is CILogon.