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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Do you have a specific text change in mind that would address this, Justin?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> Thanks,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> -- Mike<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext"> Justin Richer [mailto:jricher@mitre.org]
<br>
<b>Sent:</b> Wednesday, February 06, 2013 11:00 AM<br>
<b>To:</b> Mike Jones<br>
<b>Cc:</b> 'Brian Campbell'; '<openid-specs-ab@lists.openid.net>'<br>
<b>Subject:</b> Re: [Openid-specs-ab] Comments on Registration (-14) Release Candidate D<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt">That's not private_key_jwt anymore, that's client_secret_jwt, which is a different value. We probably want to have this be more explicitly called out where these values are defined.<br>
<br>
-- Justin<br>
<br>
<o:p></o:p></p>
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<p class="MsoNormal">On 02/06/2013 01:54 PM, Mike Jones wrote:<o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Hi Brian,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">There’s one part of your comments that I didn’t know how to address. Per the comment in the issue:</span><o:p></o:p></p>
<p style="margin-left:0in;text-indent:-.25in;mso-list:l0 level1 lfo2"><![if !supportLists]><span style="mso-list:Ignore">1.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]><span lang="EN" style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#333333">You wrote:</span><o:p></o:p></p>
<p><span lang="EN" style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#333333">2.2.1. Client Register Operation Response</span><o:p></o:p></p>
<p><span lang="EN" style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#333333">says that "[client_secret] is not required for clients selecting a token_endpoint_auth_method of private_key_jwt" but what if they've selected HS256 (or other HSxxx)
for request_object_signing_alg or any of the <em><span style="font-family:"Arial","sans-serif"">signed</span></em> or
<em><span style="font-family:"Arial","sans-serif"">singing</span></em> parameters?</span><o:p></o:p></p>
<p><span lang="EN" style="font-size:10.5pt;font-family:"Arial","sans-serif";color:#333333">Do you have a suggested text change in response to this issue?</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> Thanks,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> -- Mike</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Mike Jones
<br>
<b>Sent:</b> Monday, January 28, 2013 12:21 PM<br>
<b>To:</b> Brian Campbell; <a href="mailto:openid-specs-ab@lists.openid.net"><openid-specs-ab@lists.openid.net></a><br>
<b>Subject:</b> RE: [Openid-specs-ab] Comments on Registration (-14) Release Candidate D</span><o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">I’ve created
<a href="http://hg.openid.net/connect/issue/727/registration-brian-campbells-review">
http://hg.openid.net/connect/issue/727/registration-brian-campbells-review</a> to track these review comments.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> -- Mike</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">
<a href="mailto:openid-specs-ab-bounces@lists.openid.net">openid-specs-ab-bounces@lists.openid.net</a> [<a href="mailto:openid-specs-ab-bounces@lists.openid.net">mailto:openid-specs-ab-bounces@lists.openid.net</a>]
<b>On Behalf Of </b>Brian Campbell<br>
<b>Sent:</b> Thursday, January 24, 2013 3:48 PM<br>
<b>To:</b> <a href="mailto:openid-specs-ab@lists.openid.net"><openid-specs-ab@lists.openid.net></a><br>
<b>Subject:</b> [Openid-specs-ab] Comments on Registration (-14) Release Candidate D</span><o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt">Some comments/questions on <a href="http://openid.net/specs/openid-connect-registration-1_0-14.html">
http://openid.net/specs/openid-connect-registration-1_0-14.html</a> follow:<br>
<br>
<a href="http://openid.net/specs/openid-connect-registration-1_0-14.html#ClientRegistration">http://openid.net/specs/openid-connect-registration-1_0-14.html#ClientRegistration</a><br>
2.1. Client Registration and Client Update Request<br>
<br>
The definition of access_token and the text near the bottom about registration_access_token seem to suggest that the (registration) access token need only be sent on client_update requests. But surly it's also needed for rotate_secret?
<br>
<br>
Changing from requiring client id and secret on client_update (and I assume rotate_secret) to needed the registration access token suggests that (short of some additional work) clients provisioned by some other means than this registration endpoint cannot update
themselves or rotate their secret via the registration endpoint. I guess that could be a feature or a bug (or just meh) depending on how you look at it. But it just occurred to me and the change is relatively recent so I thought I'd mention it.<br>
<br>
Honestly, it feels pretty awkward that the nature of the access token and if it's required or not differs based on the value of the operation parameter. It can work but means that the code that's doing the authn/z will need to examine the operation parameter
in the request body in order to know what to do and the content of the token and how it's processed might be very different based on the operation. Anyway, I'm not necessarily objecting to it but still feel compelled to mention that it leaves kind of a bad
taste.<br>
<br>
jwk_url and x509_url say they are used for "signing Token Endpoint Requests" but there's nothing specified anywhere about signing Token Endpoint Requests, is there? Is it intended to mean signing the jwt when authenticating to the token endpoint using the private_key_jwt
method?<br>
<br>
All the jwk and x509 basically say that if both jwk and x509 are registered then. "the keys contained in both formats SHOULD be the same" but Messages 4.2
<a href="http://openid.net/specs/openid-connect-messages-1_0-15.html#sigenc.key">
http://openid.net/specs/openid-connect-messages-1_0-15.html#sigenc.key</a> has a MUST. Shouldn't these be consistent?<br>
<br>
Issues 703 and 704 likely will impact the key parameters too.<br>
<br>
A number of places say "The valid values are listed in Section 3.1 of <a href="http://openid.net/specs/openid-connect-registration-1_0-14.html#JWA">
JWA</a> [JWA]" with respect to signing. But is "none" an acceptable/reasonalbe value for any or all of these?
<br>
<br>
<br>
<a href="http://openid.net/specs/openid-connect-registration-1_0-14.html#ClientRegisterResponse">http://openid.net/specs/openid-connect-registration-1_0-14.html#ClientRegisterResponse</a><br>
2.2.1. Client Register Operation Response<br>
<br>
says that "[client_secret] is not required for clients selecting a token_endpoint_auth_method of private_key_jwt" but what if they've selected HS256 (or other HSxxx) for request_object_signing_alg or any of the *signed* or *singing* parameters?
<br>
<br>
This section and 2.2.3 have "Additionally, the server MUST include all registered metadata about a client as described in
<a href="http://openid.net/specs/openid-connect-registration-1_0-14.html#ClientRegistration">
Section 2.1</a>, including any fields that the server has provisioned on the client's behalf." What is the expected behavior for default values from 2.1 (that very well might not be stored anywhere).<br>
<br>
<a href="http://openid.net/specs/openid-connect-registration-1_0-14.html#ErrorResponse">http://openid.net/specs/openid-connect-registration-1_0-14.html#ErrorResponse</a><br>
2.3. Client Registration Error Response<br>
<br>
I don't think invalid_client_id or invalid_client_secret are valid anymore?<br>
<br>
<br>
<a href="http://openid.net/specs/openid-connect-registration-1_0-14.html#Security">http://openid.net/specs/openid-connect-registration-1_0-14.html#Security</a><br>
5. Security Considerations<br>
"Requests to the Registration Endpoint for <tt><span style="font-size:10.0pt">client_update</span></tt> MUST have some rate limiting on failures to prevent the Client secret from being disclosed though repeated access attempts." Which is true, I suppose, but
no longer applies to the client secret but rather to the registration access token. Also doesn't it apply to rotate_secret as well?<br>
<br>
<br>
<a href="http://openid.net/specs/openid-connect-registration-1_0-14.html#Acknowledgements">http://openid.net/specs/openid-connect-registration-1_0-14.html#Acknowledgements</a><br>
Appendix A. Acknowledgements<br>
<br>
Is empty. What does it take to get on there? ;) I'm sure I'm not the only one either...<br>
<br>
<br>
Thanks,<br>
Brian<br>
<br>
<br>
P.S. I'll try and look at the other RC docs in the next few days but it's very time consuming and not the only thing on my (or anyone's I'm sure) plate. I just happened to be trying to update some of my (limited) registration code today so it was right in front
of me.<br>
<br>
<br>
<br>
<o:p></o:p></p>
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<o:p></o:p></p>
<pre>_______________________________________________<o:p></o:p></pre>
<pre>Openid-specs-ab mailing list<o:p></o:p></pre>
<pre><a href="mailto:Openid-specs-ab@lists.openid.net">Openid-specs-ab@lists.openid.net</a><o:p></o:p></pre>
<pre><a href="http://lists.openid.net/mailman/listinfo/openid-specs-ab">http://lists.openid.net/mailman/listinfo/openid-specs-ab</a><o:p></o:p></pre>
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