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Date, Time, and Location

Thursday, July 16, 2020
1:10pm ET | 12:10pm CT | 11:10am MT | 10:10am PT

InCommon TAC Minutes

July 16, 2020

Attending: Heather Flanagan, Mark Rank, Judith Bush, Eric Kool-Brown, Janemarie Duh, Mary McKee, Matthew Brookover, Eric Goodman, Keith Wessel, Matthew Economou

With: Dean Woodbeck, David Walker, Les LaCroix, Shannon Roddy, David Bantz, Albert Wu, Nick Roy, Steve Zoppi, Ann West, IJ Kim

Intellectual Property Reminder - All Internet2 activities are governed by the Internet2 Intellectual Property Framework.

Public Content Notice - TAC minutes are public documents. Please let the TAC and note taker know if you plan to discuss something of a sensitive nature.

T&I and Ops Updates

  • About a one-hour outage on Weds, July 8 in the midst of an FM update. Some of the changes conflicted with the production environment. This coincided with trying to change the word “master.” The changes were rolled back and fixes were documented. 
  • GCM default encryption algorithm planning and mailto: planning: Nick will document the changes and get them into the development pipeline.


  • Program committee met prior to the pandemic and met again yesterday to discuss how we might offer CAMP and ACAMP virtually. Ann described some of the options the program committee is exploring. 

International Update

The quarterly update describing REFEDS activities (including that of the REFEDS Schema Editorial Board) was sent out to the REFEDS mailing list earlier this month. A copy is available here:

Of particular note, and overlapping with the SeamlessAccess Update, REFEDS has opened a consultation period for the three entity categories developed by the SeamlessAccess Entity Categories and Attribute Bundles Working Group. Information on the consultations is available on the REFEDS Consultation page: NISO is planning a webinar on 10 August 2020 geared towards the library community to explain the idea behind the entity categories and to encourage feedback. Registration is free:

In another area of overlap, the Schema Discuss list is considering an idea for a new local reporting code attribute. This originally came out of RA21 and would (if the idea gains broader support) allow IdPs to send information to an SP that would allow the SP to generate usage reports, primarily for billing purposes, back to the institution. The values being sent from the IdP would only have meaning to the originating institution; the SP would have no insight into what or how that code is used internally by the campus. A working draft to describe the attribute is available in a Google Doc:

Adopting SAML Subject Identifier

Discussion centered on a draft of a document concerning identifiers.

Four characteristics of identifiers

  • Privacy-perserving
  • Unique
  • Non-reassignable
  • Persistent (long-lived)

User identifiers used in federated SSO

  • eduPersonPrincipal Name (ePPN)
  • eduPersonTargetedID (ePTID)
  • eduPersonUnique ID (ePUID)
  • SAML V2.0 general purpose subject identifier (subject-id)
  • SALM V2.0 pairwise subject identifier (pairwise-id)
  • Email address

There was discussion about the various identifiers and how each measures up against the characteristics.

Next Meeting -  Thursday, July 30, 2020 

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