[Openid-specs-mobile-profile] MODRNA WG call on July 24th 2018 preliminary minutes

philippe.clement at orange.com philippe.clement at orange.com
Wed Jul 25 09:30:41 UTC 2018


Dear all,
Please find below the preliminary minutes of our MODRNA call on July 24th 2018
In case of misunderstanding or error please let me know your suggestion.

Roll Call

(Extracted from gotomeeting) Nat Sakimura ; John Bradley ; Philippe Clement (Orange); Siva(GSMA); Brian Campbell ; Dave.Tonge ; Bjorn Hjelm, Mike Engan; Charles Marais (Orange)

Adoption of the Agenda [Bjorn/John]
1.      Adopted

Working Group Updates

GSMA Siva:

CPAS working on PKI enabler and certificates. In this approach ID Gateway uses a specific key to sign parameters. This enabler could potentially be applicable to any Mobile connect service.
2.      GSMA supports polling for CIBA. Work in progress in the CPAS to determine how the polling is used.
3.
4.      work on progress about login_hint_token, and token binding parameters.

Question about response_mode in the authentication request, optional in OIDC. Either query parameter or form post options are usable. In case of query parameters, browser could truncate if the payload is too big because of max url size limit. Preference is to avoid to overload browser size limit. Keep the both options open. Delivering the id token directly to the application is a good example.

FAPI WG [John/Dave]
*       F2F in Tokyo this morning addressing CIBA and different issues, especially delivery of the token in the notification mode. Option to change the semantics for CIBA to deliver the token is on the table. Open Banking is on its way to support FAPI profile, in a simplified approach.
*       Question about FAPI group to support polling. Open Banking people try to avoid notification, are looking for changes to implement it.

CIBA Discussion

   Questions about the different mechanisms to provide back the token to the server and how to specify CIBA and locate it regarding the different OIF groups (MODRNA, FAPI...). Is it necessary to create a specific MODRNA profile of CIBA ? notification mode and pushing the token are at stake. This approach relies on the delay to make the token available back to the client.
   Maybe it could be interesting to have a fairly good definition of CIBA.
   --> John to open an issue on the issue tracker.
   Discussions about login_hint, id_token_hint, login_hint_token. Remarks about the fact that the token may be older than a raisonnable period. How id_token identifies a client ? One could simply consider a blob of information that the IdP interprets.
   Precisions from SIVA: login_hint_token is used before authentication. id_token_hint concerns a previously authenticated user. Id_token_hint is not audienced, so implies complications.
   Suggestion from Brian: don't validate the id_token_hint, but see inside some information to use. Add security considerations.
   --> Brian to look at the issue and update the issue tracker according to the discussions regarding id token and delivery modes.

Issue Tracker

Not addressed

Best regards,
Philippe


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