Consider the case where partners share a computer, or a user has a personal account and a professional account with the same IDP. If the currently logged-in user is different from the suggested user via login_id, what are the expectations?<div class="gmail_extra">
<br><br><div class="gmail_quote">On Thu, Aug 30, 2012 at 7:55 AM, Justin Richer <span dir="ltr"><<a href="mailto:jricher@mitre.org" target="_blank">jricher@mitre.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">

  
    
  
  <div bgcolor="#FFFFFF" text="#000000">
    <div>Ryo,<br>
      <br>
      We talked about this on the call this morning. Right now, we're
      saying that it's RECOMMENDED that they have the same value, but
      it's not required. Since there are currently two discovery setups
      (SWD and Webfinger/XRD) that use different parameter names, it
      might be a moot point to try and match those.<span class="HOEnZb"><font color="#888888"><br>
      <br>
       -- Justin</font></span><div><div class="h5"><br>
      <br>
      On 08/30/2012 01:28 AM, Ryo Ito wrote:<br>
    </div></div></div><div><div class="h5">
    <blockquote type="cite">
      
      <div>Do the principal parameter at discovery request and login_id
        parameter have same value?</div>
      <div>If it is Yes, the unification of the parameter name or
        reference will help developers.</div>
      <div><br>
      </div>
      <div>Thanks,</div>
      <div>Ryo</div>
      <br>
      <div class="gmail_quote">2012/8/30 George Fletcher <span dir="ltr"><<a href="mailto:gffletch@aol.com" target="_blank">gffletch@aol.com</a>></span><br>
        <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
          <div bgcolor="#FFFFFF" text="#000000"> <font face="Helvetica,
              Arial, sans-serif">How about adding the following to
              section 2.1.2 of Messages... after the id_token parameter<br>
              <br>
              login_id<br>
                  OPTIONAL. A hint to the authorization service as to
              the login_id the user may use to authenticate (if
              necessary). This hint can be used by an RP if it first
              asks the user for their email address (or other
              identifier) and then wants to pass that value as a hint to
              the discovered authorization service.<br>
              <br>
              Thanks,<br>
              George<br>
              <br>
            </font>
            <div>
              <div>
                <div>On 8/29/12 2:00 PM, Nat Sakimura wrote:<br>
                </div>
                <blockquote type="cite">
                  <div>Hey, now I am getting the support! </div>
                  <div><br>
                  </div>
                  <div>Could one of you provide the actual text proposal
                    for it? <br>
                    <br>
                    =nat via iPhone</div>
                  <div><br>
                    On Aug 30, 2012, at 1:40 AM, Chuck Mortimore <<a href="mailto:cmortimore@salesforce.com" target="_blank">cmortimore@salesforce.com</a>>
                    wrote:<br>
                    <br>
                  </div>
                  <blockquote type="cite">
                    <div>
                      <div>+1 <br>
                        <br>
                        - cmort</div>
                      <div><br>
                        On Aug 29, 2012, at 9:26 AM, "Pam Dingle" <<a href="mailto:pdingle@pingidentity.com" target="_blank">pdingle@pingidentity.com</a>>

                        wrote:<br>
                        <br>
                      </div>
                      <blockquote type="cite">
                        <div>+1 from me too - need this for account
                          chooser, among other things.<br>
                          <br>
                          <div class="gmail_quote">On Wed, Aug 29, 2012
                            at 8:39 AM, Richer, Justin P. <span dir="ltr"><<a href="mailto:jricher@mitre.org" target="_blank">jricher@mitre.org</a>></span>
                            wrote:<br>
                            <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
                              <div style="word-wrap:break-word"> +1,
                                I've asked for this feature too.
                                <div><br>
                                </div>
                                <div> -- Justin</div>
                                <div><br>
                                  <div>
                                    <div>
                                      <div>
                                        <div>On Aug 29, 2012, at 11:27
                                          AM, George Fletcher wrote:</div>
                                        <br>
                                      </div>
                                    </div>
                                    <blockquote type="cite">
                                      <div>
                                        <div>
                                          <div bgcolor="#FFFFFF" text="#000000"><font face="Helvetica, Arial,
                                              sans-serif">Hi,<br>
                                              <br>
                                              We've run into a case
                                              where it would be nice to
                                              be able to pass into the
                                              /authorize endpoint a
                                              value to pre-fill the
                                              loginid field on the
                                              authentication UI. We
                                              allow for an id_token to
                                              be passed as a hint of the
                                              desired user, but this
                                              only works for an "already
                                              authenticated" use case.<br>
                                              <br>
                                              If we consider the Account
                                              Chooser case where what is
                                              stored is the user's email
                                              address, it would be nice
                                              to be able to start the
                                              identity federation flow
                                              passing that email address
                                              along to the IdP. <br>
                                              <br>
                                              Did I just miss support
                                              for this in the specs?<br>
                                              <br>
                                              Thanks,<br>
                                              George<br>
                                            </font>
                                            <pre cols="72">-- 
Chief Architect                   AIM:  gffletch
Identity Services Engineering     Work: <a href="mailto:george.fletcher@teamaol.com" target="_blank">george.fletcher@teamaol.com</a>
AOL Inc.                          Home: <a href="mailto:gffletch@aol.com" target="_blank">gffletch@aol.com</a>
Mobile: <a href="tel:%2B1-703-462-3494" value="+17034623494" target="_blank">+1-703-462-3494</a>           Blog: <a href="http://practicalid.blogspot.com/" target="_blank">http://practicalid.blogspot.com</a>
Office: <a href="tel:%2B1-703-265-2544" value="+17032652544" target="_blank">+1-703-265-2544</a>           Twitter: <a href="http://twitter.com/gffletch" target="_blank">http://twitter.com/gffletch</a>
</pre>
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                          <br>
                          <br clear="all">
                          <div><br>
                          </div>
                          -- <br>
                          <span><font style="color:rgb(52,54,52);font-size:12px" face="Tahoma" color="#343634"><strong><span>Pamela

                                  Dingle</span></strong>  |  <span>Sr.
                                Technical Architect</span></font><br>
                            <font style="font-size:11px" face="Arial"><font face="Tahoma" color="#343634"><strong>Ping</strong></font><font face="Tahoma" color="#E71939"><strong>Identity</strong></font>  |  

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                              - - - - - - - - - - - - - - - - - - -<br>
                              <font color="#005568"><strong>O:</strong></font> <font color="#343634"><span><a href="tel:303-999-5890" value="+13039995890" target="_blank">303-999-5890</a></span></font>   <font color="#005568"><strong>M:</strong></font> <font color="#343634"><span><a href="tel:303-999-5890" value="+13039995890" target="_blank">303-999-5890</a></span></font><br>

                              <font color="#005568"><strong>Email:</strong></font> <span><a href="mailto:pdingle@pingidentity.com" target="_blank">pdingle@pingidentity.com</a></span><br>
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                                      <div style="float:left"><font style="font-size:11px" face="Arial"><font color="#005568"><strong>Connect
                                              with Ping</strong></font><br>
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                                                with me</span></strong></font><br>
                                          <font color="#000000"><span>Twitter:

                                              @pamelarosiedee</span></font><br>
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                                    </td>
                                  </tr>
                                </tbody>
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                        <div><span>_______________________________________________</span><br>
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                  <blockquote type="cite">
                    <div><span>_______________________________________________</span><br>
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                  <br>
                  <pre>_______________________________________________
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</pre>
                </blockquote>
                <br>
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          <br>
        </blockquote>
      </div>
      <br>
      <br clear="all">
      <div><br>
      </div>
      -- <br>
      ====================<br>
      Ryo Ito<br>
      Email : <a href="mailto:ritou.06@gmail.com" target="_blank">ritou.06@gmail.com</a><br>
      ====================<br>
      <br>
      <fieldset></fieldset>
      <br>
      <pre>_______________________________________________
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<br></blockquote></div><br><br clear="all"><div><br></div>-- <br>--Breno<br><br>
</div>