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Next Steps



Update (i.e., make current) the set of use cases previously developed by the Social Identities Working Group. This should include use cases for the following situations

  1. Social account linked to a campus-issued account
  2. Social identity used by a non-community member


Use Cases for External Identities




Develop a set of criteria for selecting external providers in a variety of usage scenarios. Ensure that both social providers (e.g., Google, Facebook, Twitter) and non-social providers (e.g., Microsoft, PayPal, VeriSign) are included.


Evaluating External Identity Providers, and included in final report drafts




Identify and document properties of external accounts that would be of interest to web application owners and other relying parties. This should include both

  1. how the account is managed for authentication purposes, and
  2. attributes asserted by the account provider.


Evaluating External Identity Providers and included in final report drafts


Combined with #2.


Define and document how a gateway would represent the properties of an external account to an application.

Not Done


Recommend as future work.

The group did not focus on the specifics of how attributes would be represented. The work group did discuss approaches for implementing integration, which is included in the report.


Contrast a central gateway with a local gateway. List the advantages and disadvantages of each deployment model.


Account Linking Approaches with Risks and incorporated in final document.


In the final report, the information from the document listed here was split some across multiple sections, but the contrast between the approaches was discussed.


Provide application owners with recommendations regarding risk profiles when using external identities. (These profiles need not be based on the traditional 800-63 categories.) Describe various approaches to risk management.


External Identities Workgroup Meeting at ACAMP - 2014-10-27 and incoporated and expanded upon in final document.


This was done more as stating the risks and calling out use cases that affect assessment of risk than defining formal risk profiles.


Document various approaches to account linking:

  1. Accounts can be linked either centrally (in a campus Person Registry, and visible via the campus IDP), or at a specific SP (application).
  2. Linking a campus account to a known external account, and linking an external account to an existing campus-issued account, where both accounts are used by the same person.
  3. Identify the properties that an external account must/should possess that would affect its use.
  4. Using an external authentication provider to authenticate to a campus-based service.
  5. Identify ways that campus-owned attributes could be asserted following authentication with an external account (e.g., group memberships)


Account Linking Approaches with Risks

External Identities Workgroup Meeting at ACAMP - 2014-10-27

and in final document


These topics were all addressed, with the possible exception of #3, where the concept of an "identifier" is defined, but requirements of external identity properties were not elaborated upon.


Produce a set of longer-lived recommendations for practitioners, roughly comparable to the NMI-DIR documents (e.g., papers, not just wiki pages).


The final document is intended to meet this role. Out for comment to see how well it holds up to the desire.