[Openid-specs-mobile-profile] MODRNA WG Call 18 Nov 15 preliminary notes

John Bradley ve7jtb at ve7jtb.com
Sun Nov 22 20:21:31 UTC 2015

What if the client doesn’t care, it is happy with the minimum authentication level?

Is there some other MODRNA behaviour that is triggered by the presence of the acr value?

If there is something additional that we are signalling then they probably shouldn’t attempt to be generic values.

Per my other email I suspect that they need to have some business process behind them as well so probably are not as generic as plain authentication methods.

John B.

> On Nov 22, 2015, at 4:30 PM, Torsten Lodderstedt <torsten at lodderstedt.net> wrote:
> Hi Philippe,
> there must be a way for a RP to indicate to the OP to turn on the MODRNA/Mobile Connect authentication machinery. Using the ACR values for that purpose seems the be the natural choice. So if ACR values are the only way to request MODRNA authentication, the respective parameter must be MANDATORY. 
> best regards,
> Torsten.
> Am 19.11.2015 um 17:22 schrieb philippe.clement at orange.com <mailto:philippe.clement at orange.com>:
>> Dear all, dear Jorg
>> Maybe you discussed this subject during the Nov 11th call that I didn’t attend, but I would like to have confirmation of the reasons why “acr_values” are considered as “REQUESTED”. 
>> Can someone remind me with the consequences of putting this parameter to “OPTIONAL” ?
>> Thanks a lot
>> Philippe
>> _____________________________________________
>> De : CLEMENT Philippe IMT TECHNO 
>> Envoyé : jeudi 19 novembre 2015 15:15
>> À : Lodderstedt, Torsten; 'openid-specs-mobile-profile at lists.openid.net <mailto:openid-specs-mobile-profile at lists.openid.net>'
>> Objet : MODRNA WG Call 18 Nov 15 preliminary notes
>> Dear all,
>> Please find below the preliminary notes of our call on 18 11 15.  Please send me any feedback in case of needed adjustments
>> Participants:  <>Bjorn, John, Jorg, Nat, Philippe, Torsten, Matthieu
>> Agenda: 
>> Authentication document
>> AOB
>> Authentication document
>> Discussion around ISO-29115: 
>> Authentication document mentions that it relies on ISO-29115.
>> This ISO doc is however larger than the MODRNA scope, and addresses Identity proofing, Authentication proofing and Identity management.
>> On another hand, the authentication document mentions explicitly the 4 levels of assurance. It is mentioned that the eIDAS rules will rely on 3 levels (low, substantial, high) and that mentioning the 4 levels in MODRNA could lead to ambiguities regarding the usage of MODRNA in Europe.
>> John will propose an update of this part in the following days.
>> Security discussions
>> Exchanges about OAuth and OIDC specific threats, use of code flow and ID token, nonce usage, AS impersonation and front channel code injection.
>> Discussions to continue offline on serious attacks and countermeasures as security recommendations for implementing are required.
>> Jorg to make the feedback to GSMA regarding MODRNA work on security 
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