[Openid-specs-mobile-profile] Alternative account porting design

Arne Georg Gleditsch argggh at telenordigital.com
Wed Aug 24 13:39:27 UTC 2016

Hi Torsten,

I welcome an overhaul of the discovery process, but it concerns me if we
make that a prerequisite of getting a viable solution to life cycle
handling in place.  I think this is overdue as it is, I'd be much happier
if we could design a scheme that worked with both variants of operator



On Wed, Aug 24, 2016 at 10:38 AM, torsten at lodderstedt.net <
torsten at lodderstedt.net> wrote:

> Hi Arne,
> I hope Mobile Connect discovery and credential management will be
> decoupled and aligned with OpenId/OAuth standard mechanisms. We had
> productive discussions about that topic with GSMA and will see first
> results with the intro of the openid-configuration to API exchange soon.
> Next step might be use of Software Statements for credential mgmt.
> I recommend you to take a look onto MODRNA discovery and registration
> drafts in our repo.
> In this case, RPs will have/manage their OP credentials independent of the
> discovery process. So it should be possible to authenticate towards the old
> OP.
> best regards,
> Torsten.
> Sent by MailWise <http://www.mail-wise.com/installation/2> – See your
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> -------- Originalnachricht --------
> Betreff: Re: [Openid-specs-mobile-profile] Alternative account porting
> design
> Von: Arne Georg Gleditsch <argggh at telenordigital.com>
> An: Torsten Lodderstedt <torsten at lodderstedt.net>
> Cc: "Manger, James" <James.H.Manger at team.telstra.com>,openid-specs-mobile-
> profile at lists.openid.net
> Torsten Lodderstedt <torsten at lodderstedt.net> writes:
> > 3) RP sends request to porting check API at the old OP, including the
> > porting token + the credentials it regularily uses to
> > identify/authenticate with the tokens endpoint of this particular OP
> > (it must have an identity with this OP as it is a RP for this OP as
> > well)
> I agree that complete separation of RP identification is a nice feature
> -- however, we need to keep in mind that in a Mobile Connect context,
> the RPs cannot be expected to hold on to (up-to-date) credentials for
> all OPs, not even the ones they have previously been in communication
> with.  For them to to be able to authenticate towards the old OP, they
> would need to first communicate with the Operator Discovery facility to
> retrieve OP-specific credentials.  This is not a show-stopper per se,
> but it is going to complicate the flow a bit for the RPs.  We also need
> to supply them with information they can use towards Operator Discovery
> to resolve the old OP, i.e just indicating the old iss value is not
> going to be enough at this step.  (Although it would be nice if OD
> supported lookups by iss...)
> --
> Arne.
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