I wasn't explaining anything that should be new, Peter, so perhaps my words were unclear. The RP performs discovery on the email address, which is a legal URL. The user@ portion is dropped implicitly, leaving nothing but the domain. The RP pulls at that URL, and if the HTTP response includes an XRDS document or reference that describes an OP directed identity-supporting endpoint, the RP directs the user to the appropriate OP url.<div>
<br clear="all">--<br>Andrew Arnott<br>"I [may] not agree with what you have to say, but I'll defend to the death your right to say it." - Voltaire<br>
<br><br><div class="gmail_quote">On Sun, Mar 22, 2009 at 4:23 PM, Peter Williams <span dir="ltr"><<a href="mailto:pwilliams@rapattoni.com">pwilliams@rapattoni.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div lang="EN-US" link="blue" vlink="purple">
<div>
<p><span style="font-size:11.0pt;color:#1F497D">First time I’ve heard of an entity other than an OP
performing the directed identity “protocol” </span></p>
<p><span style="font-size:11.0pt;color:#1F497D"> </span></p>
<p>…If an email address domain name supports directed
identity</p>
<p> </p>
<p>…redirects the user to the OP,<span style="font-size:11.0pt;color:#1F497D"></span></p>
<p><span style="font-size:11.0pt;color:#1F497D"> </span></p>
<p><span style="font-size:11.0pt;color:#1F497D">Is this a standardized flow in openid?</span></p>
<p><span style="font-size:11.0pt;color:#1F497D"> </span></p>
<p><span style="font-size:11.0pt;color:#1F497D">If such a flow is not laid out in the spec, it doesn’t
have the (relative) IP protections of other finalized materials.</span></p>
<p><span style="font-size:11.0pt;color:#1F497D"> </span></p>
<div style="border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in 4.0pt">
<div>
<div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in">
<p><b><span style="font-size:10.0pt">From:</span></b><span style="font-size:10.0pt">
<a href="mailto:general-bounces@openid.net" target="_blank">general-bounces@openid.net</a> [mailto:<a href="mailto:general-bounces@openid.net" target="_blank">general-bounces@openid.net</a>] <b>On Behalf Of </b>Andrew
Arnott<br>
<b>Sent:</b> Sunday, March 22, 2009 4:13 PM<br>
<b>To:</b> David Nicol<br>
<b>Cc:</b> Dmitry Shechtman; Recordon, David; <a href="mailto:yadis@lists.danga.com" target="_blank">yadis@lists.danga.com</a>;
<a href="mailto:general@openid.net" target="_blank">general@openid.net</a></span></p><div class="im"><br>
<b>Subject:</b> Re: [OpenID] The Various Methods For
"<a href="mailto:user@domain.com" target="_blank">user@domain.com</a>" Style Identifiers</div><p></p>
</div>
</div>
<p> </p>
<p>This comes up periodically. The last time it did, it
ended with: "it already works, via directed identity." If an
email address domain name supports directed identity, then a user can type
his/her own email address, and it (becoming equivalent to just the domain name
of that email address) redirects the user to the OP, where the identifier can
be decided on and the assertion sent back to the RP.</p><div><div></div><div class="h5">
<div>
<p style="margin-bottom:12.0pt"><br clear="all">
--<br>
Andrew Arnott<br>
"I [may] not agree with what you have to say, but I'll defend to the death
your right to say it." - Voltaire<br>
<br>
</p>
<div>
<p>On Sun, Mar 22, 2009 at 3:26 PM, David Nicol <<a href="mailto:davidnicol@gmail.com" target="_blank">davidnicol@gmail.com</a>> wrote:</p>
<p>I am for an approach of leaving all systems as they are now
and adding<br>
a convention, provided by some openID identity service, that maps<br>
e-mail addresses into openID urls, and then trying to popularize that<br>
service, or the various services conforming to the to-be-proposed<br>
convention, so that when someone types <a href="mailto:joe@example.com" target="_blank">joe@example.com</a>
into the<br>
openID slot the identity widget offers joe a choice of<br>
<a href="http://smtp.openid.tipjar.com/example.com/joe" target="_blank">http://smtp.openid.tipjar.com/example.com/joe</a>
and a few other similar<br>
services suggesting the rewritten versions.<br>
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</div>
<p> </p>
</div>
</div></div></div>
</div>
</div>
</blockquote></div><br></div>