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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">Excellent! I&#8217;m assuming though, that for the MFA route, we&#8217;d have to either use JAAS (as that&#8217;s what&#8217;s built into the Duo-contributed login handler) or make
 our own version of the Duo login handler to get the 1<sup>st</sup> factor from RemoteUser. We can&#8217;t string together two login handlers, in other words, using RemoteUser then taking the principal and passing it to the Duo login handler.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">Is that right?<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">Keith<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;">From:</span></b><span style="font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;"> users-bounces@shibboleth.net [mailto:users-bounces@shibboleth.net]
<b>On Behalf Of </b>Paul Hethmon<br>
<b>Sent:</b> Tuesday, October 22, 2013 7:26 AM<br>
<b>To:</b> Shib Users<br>
<b>Subject:</b> Re: Feedback on Multi-Context Broker Community Contribution<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:black">It could definitely do this. The configuration maps the requested authentication context value from the SP to a method that processes it. You can think of it
 as setting up N login handlers in Shib's handler.xml each mapped to a different authentication context. The difference being the MCB introduces the concept of each context/method having a strength value and can step up if necessary. RemoteUser just has that
 limitation of not supporting forced authentication.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:black">Paul<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:black">From:
</span></b><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:black">&lt;Wessel&gt;, Keith &lt;<a href="mailto:kwessel@illinois.edu">kwessel@illinois.edu</a>&gt;<br>
<b>Reply-To: </b>Shibboleth Users &lt;<a href="mailto:users@shibboleth.net">users@shibboleth.net</a>&gt;<br>
<b>Date: </b>Monday, October 21, 2013 4:44 PM<br>
<b>To: </b>Shibboleth Users &lt;<a href="mailto:users@shibboleth.net">users@shibboleth.net</a>&gt;<br>
<b>Subject: </b>RE: Feedback on Multi-Context Broker Community Contribution<o:p></o:p></span></p>
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<span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">We&#8217;d love if we could somehow use your MCB work to use a Remoteuser login handler for basic or unspecified authn requests but use something from Duo for MFA requests. I&#8217;m not sure,
 after reading your docs, that this is doable, though. Thoughts or comments? Am I nuts here?<span class="apple-converted-space">&nbsp;</span></span><span style="font-size:11.0pt;font-family:Wingdings;color:#1F497D">J</span><span style="color:black"><o:p></o:p></span></p>
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