I set up an auth server to protect my API, my users download a piece of software that speaks the API to access their data. Where is my server supposed to get the list of "approved" software classes from? Are you assuming a central registry per API? Or is it going to be provider-specific? If the latter, why wouldn't you just do manual registration and not use dynamic registration at all? After all, manual registration will always still be a valid option.

 -- Justin

On 08/28/2013 12:02 PM, Phil Hunt wrote:
Please define the all in one case. I think this is the edge case and is in fact 
rare.

I agree, in many cases step 1 can be made by simply approving a class of 
software. But then step 2 is simplified.

Dyn reg assumes every registration of an instance is unique which too me is a 
very extreme position.

Phil

On 2013-08-28, at 8:41, Justin Richer <jric...@mitre.org> wrote:

Except for the cases where you want step 1 to happen in band. To me, that is a vitally and 
fundamentally important use case that we can't disregard, and we must have a solution that can 
accommodate that. The notions of "publisher" and "product" fade very quickly 
once you get outside of the software vendor world.

This is, of course, not to stand in the way of other solutions or approaches 
(such as something assertion based like you're after). It's not a 
one-or-the-other proposition, especially when there are mutually exclusive 
aspects of each.

Therefore I once again call for the WG to finish the current dynamic 
registration spec *AND* pursue the assertion based process that Phil's talking 
about. They're not mutually exclusive, let's please stop talking about them 
like they are.

-- Justin

On 08/28/2013 11:17 AM, Phil Hunt wrote:
Sorry. I meant also to say i think there are 2 registration steps.

1. Software registration/approval. This often happens out of band. But in this 
step policy is defined that approves software for use. Many of the reg params 
are known here.

Federation techniques come into play as trust approvals can be based on 
developer, product or even publisher.

2. Each instance associates in a stateless way. Only clients that need 
credential rotation need more.

Phil

On 2013-08-28, at 8:04, Phil Hunt <phil.h...@oracle.com> wrote:

I have a conflict I cannot get out of for 2pacific.

I think a certificate based approach is going to simplify exchanges in all 
cases. I encourage the group to explore the concept on the call.

I am not sure breaking dyn reg up helps. It creates yet another option. I would 
like to explore how federation concept in software statements can help with 
facilitating association and making many reg stateless.

Phil

On 2013-08-28, at 5:43, "Tschofenig, Hannes (NSN - FI/Espoo)" 
<hannes.tschofe...@nsn.com> wrote:

Here are the conference bridge / Webex details for the call today.
We are going to complete the use case discussions from last time (Phil wasn't 
able to walk through all slides). Justin was also able to work out a strawman 
proposal based on the discussions last week and we will have a look at it to 
see whether this is a suitable compromise. Here is Justin's mail, in case you 
have missed it: http://www.ietf.org/mail-archive/web/oauth/current/msg12036.html

Phil, please feel free to make adjustments to your slides given the Justin's 
recent proposal.

Topic: OAuth Dynamic Client Registration
Date: Wednesday, August 28, 2013
Time: 2:00 pm, Pacific Daylight Time (San Francisco, GMT-07:00)
Meeting Number: 703 230 586
Meeting Password: oauth

-------------------------------------------------------
To join the online meeting
-------------------------------------------------------
1. Go to 
https://nsn.webex.com/nsn/j.php?ED=269567657&UID=0&PW=NNTI1ZWQzMDJk&RT=MiM0
2. Enter your name and email address.
3. Enter the meeting password: oauth
4. Click "Join Now".

To view in other time zones or languages, please click the link:
https://nsn.webex.com/nsn/j.php?ED=269567657&UID=0&PW=NNTI1ZWQzMDJk&ORT=MiM0

To add this meeting to your calendar program (for example Microsoft Outlook), 
click this link:
https://nsn.webex.com/nsn/j.php?ED=269567657&UID=0&ICS=MI&LD=1&RD=2&ST=1&SHA2=C6-AjLGvhdYjmpVdx75M6UsAwrNLMsequ5n95Gyv1R8=&RT=MiM0

-------------------------------------------------------
To join the teleconference only
-------------------------------------------------------
Global dial-in Numbers: http://www.nokiasiemensnetworks.com/nvc
Conference Code: 944 910 5485


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