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<div class="WordSection1">
<p class="MsoNormal"><span style="color:#1F497D">Hi Torsten.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">You are right, it is better not to mix the modes of the endpoints.
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Petteri<o:p></o:p></span></p>
<p class="MsoNormal"><a name="_MailEndCompose"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></a></p>
<span style="mso-bookmark:_MailEndCompose"></span>
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<p class="MsoNormal"><b><span lang="EN-US" style="color:windowtext;mso-fareast-language:FI">From:</span></b><span lang="EN-US" style="color:windowtext;mso-fareast-language:FI"> Torsten Lodderstedt [mailto:torsten@lodderstedt.net]
<br>
<b>Sent:</b> maanantaina 5. joulukuuta 2016 22.33<br>
<b>To:</b> Petteri Stenius <Petteri.Stenius@ubisecure.com><br>
<b>Cc:</b> openid-specs-mobile-profile@lists.openid.net<br>
<b>Subject:</b> Re: [Openid-specs-mobile-profile] Async authentication with polling and callback<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p>Hi,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<p class="MsoNormal">Am 05.12.2016 um 13:18 schrieb Petteri Stenius:<o:p></o:p></p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p><span lang="EN-US" style="font-family:"Calibri",sans-serif">Hi,</span><o:p></o:p></p>
<p><span lang="EN-US" style="font-family:"Calibri",sans-serif"> </span><o:p></o:p></p>
<p><span lang="EN-US" style="font-family:"Calibri",sans-serif">Registration of endpoints is an application level issue, not part of the generalized http level mechanism.</span><o:p></o:p></p>
</blockquote>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif;mso-fareast-language:FI"><br>
but it somehow intervenes with the generic http level mechanism, so the generic http part is not self-explanatory.<br>
<br>
<br>
<o:p></o:p></span></p>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p><span lang="EN-US" style="font-family:"Calibri",sans-serif"> </span><o:p></o:p></p>
<p><span lang="EN-US" style="font-family:"Calibri",sans-serif">With OAuth/OIDC we should follow the convention of registering endpoints with client registration and provider metadata.</span><o:p></o:p></p>
<p><span lang="EN-US" style="font-family:"Calibri",sans-serif"> </span><o:p></o:p></p>
<p><span lang="EN-US" style="font-family:"Calibri",sans-serif">The UQ draft defines a new client registration value “client_notification_endpoint” for the callback, but would it not be possible to use “redirect_uris” for this purpose?</span><o:p></o:p></p>
</blockquote>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif;mso-fareast-language:FI"><br>
Do you think this is a good idea to mix the two different modes? The rules for processing a conventional redirect (XSRF, referrer header, session state/cookies) are different from receiving a server2server callback (e.g. IP address black/whitelisting). I would
prefer to keep them separate.<br>
<br>
<br>
<o:p></o:p></span></p>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p><span lang="EN-US" style="font-family:"Calibri",sans-serif"> </span><o:p></o:p></p>
<p><span lang="EN-US" style="font-family:"Calibri",sans-serif">The client callback endpoint is an entry in the redirect_uris array of client registration metadata. With a parameter of the request that starts async authentication client indicates at which of
the registered endpoints it wishes to receive the async callback. This is comparable to authorization code request.</span><o:p></o:p></p>
<p><span lang="EN-US" style="font-family:"Calibri",sans-serif"> </span><o:p></o:p></p>
<p><span lang="EN-US" style="font-family:"Calibri",sans-serif"> </span><o:p></o:p></p>
<p><span style="font-family:"Calibri",sans-serif">Petteri</span><o:p></o:p></p>
<p><span style="font-family:"Calibri",sans-serif"> </span><o:p></o:p></p>
</blockquote>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif;mso-fareast-language:FI"><br>
best regards,<br>
Torsten.<br>
<br>
<o:p></o:p></span></p>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p><span style="font-family:"Calibri",sans-serif"> </span><o:p></o:p></p>
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<div id="divRplyFwdMsg">
<p class="MsoNormal"><b><span lang="EN-US">From:</span></b><span lang="EN-US"> Torsten Lodderstedt
<a href="mailto:torsten@lodderstedt.net"><torsten@lodderstedt.net></a><br>
<b>Sent:</b> Saturday, December 3, 2016 10:50:10 AM<br>
<b>To:</b> Petteri Stenius<br>
<b>Cc:</b> <a href="mailto:openid-specs-mobile-profile@lists.openid.net">openid-specs-mobile-profile@lists.openid.net</a><br>
<b>Subject:</b> Re: [Openid-specs-mobile-profile] Async authentication with polling and callback
</span><o:p></o:p></p>
<div>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class="MsoNormal"><span lang="EN-US">Hi Petteri,</span><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US">thanks for your proposal.</span><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US">One question popped up when I read the sequence for the callback case: how does the server know where to send the callback in step 3?</span><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US">best regards,</span><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US">Torsten.</span><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span lang="EN-US"><br>
Am 01.12.2016 um 16:58 schrieb Petteri Stenius <</span><a href="mailto:Petteri.Stenius@ubisecure.com"><span lang="EN-US">Petteri.Stenius@ubisecure.com</span></a><span lang="EN-US">>:</span><o:p></o:p></p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<div>
<p class="MsoNormal"><span lang="EN-US">Hello everybody</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">At the Paris meeting in September there was some discussion about polling and callback mechanisms related to asynchronous functions.
</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">These mechanisms exist in both UQ and SIBA draft specifications. Polling is also defined in OAuth Device Flow draft.</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">This proposal is an attempt to generalize async polling and callback mechanisms:</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l2 level1 lfo2"><![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-US">Define polling on the http level, not an application level function</span><o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l2 level1 lfo2"><![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-US">Callback is only a simple notification request, a client initiated request is required to fetch the actual content</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">The two proposals work together, and make for example switching between polling and callback mechanisms very easy.</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">Thanks,</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">Petteri</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><b><span lang="EN-US">Polling defined on the http level</span></b><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">Define mechanism with HTTP 303 redirect and Retry-After response header.</span><span lang="EN-US" style="font-size:10.0pt">
</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">303 redirect is used to define polling as sequence of http redirects the client follows until async operation completes and response appears.
</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">The client MUST wait time indicated by Retry-After header before following a redirect. Failing to do so would result in 503 Service Unavailable error (with Retry-After header).</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">Semantics is comparable to "Wait a moment, the response will soon appear at this location"</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">The server is allowed to implement "long polling" by holding a response up to 30 seconds (see
<a href="https://tools.ietf.org/html/rfc6202#section-5.5">https://tools.ietf.org/html/rfc6202#section-5.5</a>)</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">Example of polling sequence:</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoListParagraph" style="margin-left:18.0pt;text-indent:-18.0pt;mso-list:l1 level1 lfo4">
<![if !supportLists]><span style="mso-list:Ignore">1.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]><span lang="EN-US">Client begins async operation</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">POST /begin-async-operation HTTP/1.1</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoListParagraph" style="margin-left:18.0pt;text-indent:-18.0pt;mso-list:l1 level1 lfo4">
<![if !supportLists]><span style="mso-list:Ignore">2.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]><span lang="EN-US">Server response with 303 status indicates client must begin polling for response. Server encodes state into querystring of redirect uri</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">HTTP/1.1 303 See Other</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">Location: /async-response?opaque-server-state-1</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">Retry-After: 10</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoListParagraph" style="margin-left:18.0pt;text-indent:-18.0pt;mso-list:l1 level1 lfo4">
<![if !supportLists]><span style="mso-list:Ignore">3.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]><span lang="EN-US">Client waits at least 10 seconds before following the redirect</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">GET /async-response?opaque-server-state-1 HTTP/1.1</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoListParagraph" style="margin-left:18.0pt;text-indent:-18.0pt;mso-list:l1 level1 lfo4">
<![if !supportLists]><span style="mso-list:Ignore">4.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]><span lang="EN-US">Server response with new uri where querystring has changed</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">HTTP/1.1 303 See Other</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">Location: /async-response?opaque-server-state-2</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">Retry-After: 10</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoListParagraph" style="margin-left:18.0pt;text-indent:-18.0pt;mso-list:l1 level1 lfo4">
<![if !supportLists]><span style="mso-list:Ignore">5.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]><span lang="EN-US">Client again waits before following the redirect</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">GET /async-response?opaque-server-state-2 HTTP/1.1</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoListParagraph" style="margin-left:18.0pt;text-indent:-18.0pt;mso-list:l1 level1 lfo4">
<![if !supportLists]><span style="mso-list:Ignore">6.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]><span lang="EN-US">Server response with content when async operation has completed</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">HTTP/1.1 200 OK</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">"completed"</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><b><span lang="EN-US">Callback is a simple notification request</span></b><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">My proposal for callback mechanism is a simple notification request.
</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">Server encodes any state it needs into querystring of the notification request.
</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">For the client the querysring is opaque and the client must pass it as-is when fetching the actual content from the server.</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">Using a simple notification request removes the requirement for client to authenticate the callback request from server.</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">Example of callback sequence:</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoListParagraph" style="margin-left:18.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo6">
<![if !supportLists]><span style="mso-list:Ignore">1.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]><span lang="EN-US">Client begins async operation</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">POST /begin-async-operation HTTP/1.1</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoListParagraph" style="margin-left:18.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo6">
<![if !supportLists]><span style="mso-list:Ignore">2.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]><span lang="EN-US">Server response with 202 status indicates client needs to wait for callback</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">HTTP/1.1 202 Accepted</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoListParagraph" style="margin-left:18.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo6">
<![if !supportLists]><span style="mso-list:Ignore">3.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]><span lang="EN-US">When async operation completes server sends a notification request to client. Server encodes state into querystring of notification uri</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">GET /callback?opaque-server-state-3 HTTP/1.1</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoListParagraph" style="margin-left:18.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo6">
<![if !supportLists]><span style="mso-list:Ignore">4.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]><span lang="EN-US">Client response is not processed by server</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">HTTP/1.1 204 No Content</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoListParagraph" style="margin-left:18.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo6">
<![if !supportLists]><span style="mso-list:Ignore">5.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]><span lang="EN-US">Client creates request uri and fetches content from server</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">GET /async-response?opaque-server-state-3 HTTP/1.1</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoListParagraph" style="margin-left:18.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo6">
<![if !supportLists]><span style="mso-list:Ignore">6.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]><span lang="EN-US">Server response with content</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">HTTP/1.1 200 OK</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal">"completed"<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"><b>Related discussion</b><o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">[Openid-specs-mobile-profile] Async authentication</span><o:p></o:p></p>
<p class="MsoNormal"><a href="http://lists.openid.net/pipermail/openid-specs-mobile-profile/Week-of-Mon-20161010/000615.html"><span lang="EN-US">http://lists.openid.net/pipermail/openid-specs-mobile-profile/Week-of-Mon-20161010/000615.html</span></a><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">[OAUTH-WG] polling in the device flow</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"><a href="https://www.ietf.org/mail-archive/web/oauth/current/msg02939.html">https://www.ietf.org/mail-archive/web/oauth/current/msg02939.html</a></span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">[OAUTH-WG] Device Flow: Alternative to Polling</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt"><a href="https://www.ietf.org/mail-archive/web/oauth/current/msg16723.html">https://www.ietf.org/mail-archive/web/oauth/current/msg16723.html</a></span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><b><span lang="EN-US">References</span></b><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">OAuth 2.0 Device Flow</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"><a href="https://tools.ietf.org/html/draft-ietf-oauth-device-flow-03">https://tools.ietf.org/html/draft-ietf-oauth-device-flow-03</a></span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">HTTP/1.1 Semantics and Content</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"><a href="https://tools.ietf.org/html/rfc7231">https://tools.ietf.org/html/rfc7231</a></span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">Retry-After</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt"><a href="https://tools.ietf.org/html/rfc7231#section-7.1.3">https://tools.ietf.org/html/rfc7231#section-7.1.3</a>
</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">Best Practices for the Use of Long Polling</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"><a href="https://tools.ietf.org/html/rfc6202">https://tools.ietf.org/html/rfc6202</a></span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
</div>
</blockquote>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt;mso-fareast-language:FI">_______________________________________________<br>
Openid-specs-mobile-profile mailing list<br>
</span><span style="font-size:12.0pt;mso-fareast-language:FI"><a href="mailto:Openid-specs-mobile-profile@lists.openid.net"><span lang="EN-US">Openid-specs-mobile-profile@lists.openid.net</span></a></span><span lang="EN-US" style="font-size:12.0pt;mso-fareast-language:FI"><br>
</span><span style="font-size:12.0pt;mso-fareast-language:FI"><a href="http://lists.openid.net/mailman/listinfo/openid-specs-mobile-profile"><span lang="EN-US">http://lists.openid.net/mailman/listinfo/openid-specs-mobile-profile</span></a></span><o:p></o:p></p>
</div>
</blockquote>
</div>
</blockquote>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif;mso-fareast-language:FI"><o:p> </o:p></span></p>
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