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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">In addition to CRLs, are revocations of issuing CAs not also addressed with CRLSets, OneCRL and certificate blacklisting?<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">For OCSP, an approach for an off-line root is to have the OCSP response signed daily by an OCSP responder. This means that we would not have any 1 year OCSP responses.<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">Bruce.<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"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Public [mailto:public-bounces@cabforum.org]
<b>On Behalf Of </b>Ryan Sleevi via Public<br>
<b>Sent:</b> Wednesday, May 10, 2017 4:58 PM<br>
<b>To:</b> CA/Browser Forum Public Discussion List <public@cabforum.org><br>
<b>Cc:</b> Ryan Sleevi <sleevi@google.com><br>
<b>Subject:</b> [EXTERNAL]Re: [cabfpub] Profiling OCSP & CRLs<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I'm not trying to disagree here, but I'm trying to find out how we can best specify reasonable expectations.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">That is, there's a lot - a *lot* - that can go wrong with 1 year OCSP responders/CRLs. So if we're going to allow them, we need CAs to think about the technical risks and make proactive suggestions on how best to codify that. Because just
a blanket "1 year responder" can go very wrong<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Wed, May 10, 2017 at 4:40 PM, Ben Wilson via Public <<a href="mailto:public@cabforum.org" target="_blank">public@cabforum.org</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><a name="m_7850171928828818567__MailEndCompose"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">I agree that a one-year validity for OCSP Responders / CRLs is a
reasonable timeframe for off-line CAs. </span></a><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> </span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:2.0pt"><b><span style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#0174C3">Ben Wilson, JD, CISA, CISSP</span></b><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:2.0pt"><span style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#686869">VP Compliance</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:2.0pt"><a href="tel:(801)%20701-9678" target="_blank"><span style="font-size:11.0pt;font-family:"Arial",sans-serif">+1 801 701 9678</span></a><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"><img border="0" width="133" height="29" id="m_7850171928828818567Picture_x0020_1" src="cid:image003.jpg@01D2C9B0.4CC59550" alt="cid:image001.jpg@01D2C99B.55B4C5B0"></span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> </span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Public [mailto:</span><a href="mailto:public-bounces@cabforum.org" target="_blank"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">public-bounces@cabforum.org</span></a><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">]
<b>On Behalf Of </b>Doug Beattie via Public<br>
<b>Sent:</b> Wednesday, May 10, 2017 11:15 AM<br>
<b>To:</b> CA/Browser Forum Public Discussion List <</span><a href="mailto:public@cabforum.org" target="_blank"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">public@cabforum.org</span></a><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">><br>
<b>Cc:</b> Doug Beattie <</span><a href="mailto:doug.beattie@globalsign.com" target="_blank"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">doug.beattie@globalsign.com</span></a><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">></span><o:p></o:p></p>
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<p class="MsoNormal"><br>
<b>Subject:</b> Re: [cabfpub] Profiling OCSP & CRLs<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">There are CAs that are kept off-line other than roots, so perhaps the requirement should apply to all
“off-line” CAs, assuming we can come to agreement on what that means.</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Doug</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> </span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Public [</span><a href="mailto:public-bounces@cabforum.org" target="_blank"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">mailto:public-bounces@cabforum.org</span></a><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">]
<b>On Behalf Of </b>Peter Bowen via Public<br>
<b>Sent:</b> Wednesday, May 10, 2017 1:09 PM<br>
<b>To:</b> CA/Browser Forum Public Discussion List <</span><a href="mailto:public@cabforum.org" target="_blank"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">public@cabforum.org</span></a><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">><br>
<b>Cc:</b> Peter Bowen <</span><a href="mailto:pzb@amzn.com" target="_blank"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">pzb@amzn.com</span></a><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">><br>
<b>Subject:</b> Re: [cabfpub] Profiling OCSP & CRLs</span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Ryan,<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">This seems reasonable when you are dealing with an online CA. When you are dealing with a root CA, it is currently reasonable to only bring it online once a year to update the CRL,
as that is the required frequency. For many offline CAs it is quite a production to use the HSM, so I think the maximum duration of delegated responder certificates signed by root CAs should be at least a year.<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Thanks,<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Peter<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">On May 8, 2017, at 4:51 PM, Ryan Sleevi via Public <<a href="mailto:public@cabforum.org" target="_blank">public@cabforum.org</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I think 30 days is what we should target as the upper-bound, so would that be suggesting that we should target 15 days as a SHOULD with 30 as a MUST?<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Or were you suggesting 30 as a SHOULD, 45 as a MUST, which in practice means... well, 45? :)<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">On Thu, Apr 27, 2017 at 12:57 PM, Curt Spann <<a href="mailto:cspann@apple.com" target="_blank">cspann@apple.com</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Hi Ryan,<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Regarding delegated OCSP responder certificate validity, if 30 days is a desired goal (or a similar timeframe), I would recommend 45 days to allow the renewal to occur every 30
days, with a 15 day buffer for operational issues. Basically, for whatever target validity period we should add some buffer time.<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Cheers,<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Curt<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">On Apr 25, 2017, at 4:53 PM, Ryan Sleevi via Public <<a href="mailto:public@cabforum.org" target="_blank">public@cabforum.org</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Hi folks,<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">In response to various investigations about OCSP performance, operation, and trying to figure out how we can move to a world of more ubiquitous OCSP stapling, one of the things
that comes up is that OCSP responses are very much like the pre-BR wild-west of certificates.<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I've tried to capture a starting point for discussion at <a href="https://github.com/sleevi/cabforum-docs/pull/2/files?diff=split" target="_blank">https://github.com/sleevi/cabforum-docs/pull/2/files?diff=split</a>
. I've tried to annotate the changes, and the reason for the changes, so that people can understand them, their goals, and the implications.<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">While I'd like to get this to the point of a Ballot, it's not quite there yet. In particular, it doesn't state Effective Dates, because I want to get a sense of the challenges that
each bit may pose :)<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">If people find this approach useful, I'd like to also reform the CRL profile in a similar fashion.<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">There's also a lot of ways to express these requirements. I considered using a table approach, which I suspect some of our ETSI-audited CA members will be familiar with, and which
I find useful, but I thought it best to keep the initial discussions simple and textual, and then we can make it pretty once we're happy with the substance.<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">_______________________________________________<br>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">_______________________________________________<br>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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_______________________________________________<br>
Public mailing list<br>
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