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OK, thanks for catching that. I'll file a bug against Oauth2 Dynreg
as well (which has the same examples). John is right that it is
defined as a single value and the examples are off.<br>
<br>
-- Justin<br>
<br>
<div class="moz-cite-prefix">On 01/23/2013 10:03 AM, Mike Jones
wrote:<br>
</div>
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<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">That’s
what I thought. Thanks for confirming.<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">
-- 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>
<div>
<div style="border:none;border-top:solid #B5C4DF
1.0pt;padding:3.0pt 0in 0in 0in">
<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"">
John Bradley [<a class="moz-txt-link-freetext" href="mailto:ve7jtb@ve7jtb.com">mailto:ve7jtb@ve7jtb.com</a>]
<br>
<b>Sent:</b> Wednesday, January 23, 2013 7:02 AM<br>
<b>To:</b> Mike Jones<br>
<b>Cc:</b> <a class="moz-txt-link-abbreviated" href="mailto:openid-specs-ab@lists.openid.net">openid-specs-ab@lists.openid.net</a><br>
<b>Subject:</b> Re: [Openid-specs-ab]
token_endpoint_auth_method Registration example error?<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The server may support multiple methods,
but the client MUST only register one, so it shouldn't be
multi value for simplicity.<o:p></o:p></p>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">If you need two auth methods they should
be different client_id.<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">This is intended mostly to enhance
security and prevent a server from taking
client_secret_basic from an attacker when the real client is
using private_key_jwt.<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">John B.<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<div>
<p class="MsoNormal">On 2013-01-23, at 9:07 AM, Mike Jones
<<a moz-do-not-send="true"
href="mailto:Michael.Jones@microsoft.com">Michael.Jones@microsoft.com</a>>
wrote:<o:p></o:p></p>
</div>
<p class="MsoNormal"><br>
<br>
<o:p></o:p></p>
<div>
<div>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif"">Registration
contains the following definition:<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""> <o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Verdana","sans-serif""
lang="EN">token_endpoint_auth_method</span><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""><o:p></o:p></span></p>
</div>
<div style="margin-left:.5in">
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Verdana","sans-serif""
lang="EN">OPTIONAL. Requested authentication method
for the Token Endpoint. The options are</span><tt><span
style="color:#003366" lang="EN">client_secret_post</span></tt><span
style="font-size:11.0pt;font-family:"Verdana","sans-serif""
lang="EN">,<span class="apple-converted-space"> </span></span><tt><span
style="color:#003366" lang="EN">client_secret_basic</span></tt><span
style="font-size:11.0pt;font-family:"Verdana","sans-serif""
lang="EN">,<span class="apple-converted-space"> </span></span><tt><span
style="color:#003366" lang="EN">client_secret_jwt</span></tt><span
style="font-size:11.0pt;font-family:"Verdana","sans-serif""
lang="EN">, and<span class="apple-converted-space"> </span></span><tt><span
style="color:#003366" lang="EN">private_key_jwt</span></tt><span
style="font-size:11.0pt;font-family:"Verdana","sans-serif""
lang="EN">, as described in Section 2.2.1 of
[OpenID.Messages]. Other Authentication methods may
be defined by extension. If unspecified or omitted,
the default is<span class="apple-converted-space"> </span></span><tt><span
style="color:#003366" lang="EN">client_secret_basic</span></tt><span
class="apple-converted-space"><span
style="font-size:11.0pt;font-family:"Verdana","sans-serif""
lang="EN"> </span></span><span
style="font-size:11.0pt;font-family:"Verdana","sans-serif""
lang="EN">HTTP Basic Authentication Scheme as
specified in Section 2.3.1 of [RFC6749].</span><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""> <o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif"">It
later uses “token_endpoint_auth_method” in two
example result values in this manner:<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""> <o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="background:#CCCCCC"><span
style="font-family:"Courier New""
lang="EN">"token_endpoint_auth_method":</span><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="background:#CCCCCC"><span
style="font-family:"Courier New""
lang="EN"> "client_secret_basic
client_secret_post",</span><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""> <o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif"">This
looks like a bug to me, since the string appears to
be trying to contain multiple values.<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""> <o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif"">Thus,
I’m changing the string used to just<span
class="apple-converted-space"> </span></span><span
style="font-family:"Courier New""
lang="EN">"client_secret_basic"</span><span
class="apple-converted-space"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""> </span></span><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif"">to
make the example correct. But I thought I’d point
this out in case the example may have been
intentional in some manner.<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""> <o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif"">
-- Mike<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""> <o:p></o:p></span></p>
</div>
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<p class="MsoNormal"><o:p> </o:p></p>
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