<div dir="ltr">In my personal experience, for whatever that's worth, even banks seem to have given up on everytime/daily required logins through mobile. It's possible to leverage a lot more silent contextual authentication cues of various sorts in more clever fashion now -- deep device fingerprinting, geofencing, etc. (This is why I think merely counting factors is getting more and more useless, particularly as the "out-of-band-ness" of some of the factors should be questioned.)<div><br></div><div>Can we truly attach concise and effective guidance to a SHOULD when the authentication picture is so complex and changeable, or should we really provide a SHOULD at all here, vs. the guidance alone?</div><div><br></div><div>And keep in mind that a PAT is a special case of an OAuth access token, since it's designed to be used by the UMA resource server in some "resource owner is offline" <a href="http://kantarainitiative.org/confluence/display/uma/UMA+Implementer%27s+Guide?src=contextnavchildmode#UMAImplementer'sGuide-RO-offlineEnsuringAsynchronousResourceServerAccesstoanAuthorizationServer">circumstances</a>: a) for resource set registration that's potentially asynchronous to when the resource owner does something (say, the API just got a new version) and b) at client-driven access attempt time, when the resource owner isn't around unless they also happen to be the requesting party. So needing to refresh it daily for <i>everyone else</i> to be able to use it when you're not around might be a big bummer.</div><div><br></div><div>The advice of the UMA Implementer's Guide, linked above, is: "The authorization server thus needs to manage the issuance and expiration of the PAT and and [sic] any corresponding refresh token appropriately to ensure that the resource server has access when it needs it."</div></div><div class="gmail_extra"><br clear="all"><div><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr">
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<br><div class="gmail_quote">On Sat, Aug 27, 2016 at 3:24 PM, Justin Richer <span dir="ltr"><<a href="mailto:jricher@mit.edu" target="_blank">jricher@mit.edu</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">This is a recommendation, not a requirement, but better guidance might be warranted. The current text errs on the side of failing closed.<div><br></div><div> — Justin</div><div><br><div><blockquote type="cite"><div><div class="h5"><div>On Aug 26, 2016, at 4:55 AM, Thomas Rieneck <<a href="mailto:THRE@sundhedsdata.dk" target="_blank">THRE@sundhedsdata.dk</a>> wrote:</div><br></div></div><div><div><div class="h5"><div style="font-family:Helvetica;font-size:12px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px"><div style="margin:0cm 0cm 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US">Token Lifetimes for refresh tokens for PAT should not exceed 24 hours according to the above spec – that implies that Resource Owners should authenticate every day for Requesting Parties being able to access their resources.<span> </span><u></u><u></u></span></div><div style="margin:0cm 0cm 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US">If the patient is the Resource Owner that does not seem realistic.<u></u><u></u></span></div><div style="margin:0cm 0cm 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US"><u></u> <u></u></span></div><div style="margin:0cm 0cm 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US">Best regards<u></u><u></u></span></div><div style="margin:0cm 0cm 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US">Thomas Rieneck<u></u><u></u></span></div><div style="margin:0cm 0cm 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US">Nationale Health Data Agency<u></u><u></u></span></div></div></div></div><span style="font-family:Helvetica;font-size:12px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;float:none;display:inline!important">______________________________<wbr>_________________</span><br style="font-family:Helvetica;font-size:12px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px"><span style="font-family:Helvetica;font-size:12px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;float:none;display:inline!important">Openid-specs-heart mailing list</span><br style="font-family:Helvetica;font-size:12px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px"><a href="mailto:Openid-specs-heart@lists.openid.net" style="color:rgb(149,79,114);text-decoration:underline;font-family:Helvetica;font-size:12px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px" target="_blank">Openid-specs-heart@lists.<wbr>openid.net</a><br style="font-family:Helvetica;font-size:12px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px"><a href="http://lists.openid.net/mailman/listinfo/openid-specs-heart" style="color:rgb(149,79,114);text-decoration:underline;font-family:Helvetica;font-size:12px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px" target="_blank">http://lists.openid.net/<wbr>mailman/listinfo/openid-specs-<wbr>heart</a></div></blockquote></div><br></div></div><br>______________________________<wbr>_________________<br>
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