<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:Wingdings;
panose-1:5 0 0 0 0 0 0 0 0 0;}
@font-face
{font-family:Wingdings;
panose-1:5 0 0 0 0 0 0 0 0 0;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Consolas;
panose-1:2 11 6 9 2 2 4 3 2 4;}
@font-face
{font-family:"Bradley Hand ITC";
panose-1:3 7 4 2 5 3 2 3 2 3;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
pre
{mso-style-priority:99;
mso-style-link:"HTML Preformatted Char";
margin:0in;
margin-bottom:.0001pt;
font-size:10.0pt;
font-family:"Courier New";}
p.MsoListParagraph, li.MsoListParagraph, div.MsoListParagraph
{mso-style-priority:34;
margin-top:0in;
margin-right:0in;
margin-bottom:0in;
margin-left:.5in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
span.EmailStyle18
{mso-style-type:personal;
font-family:"Calibri",sans-serif;
color:windowtext;}
span.HTMLPreformattedChar
{mso-style-name:"HTML Preformatted Char";
mso-style-priority:99;
mso-style-link:"HTML Preformatted";
font-family:Consolas;}
span.EmailStyle21
{mso-style-type:personal-reply;
font-family:"Calibri",sans-serif;
color:#1F497D;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
/* List Definitions */
@list l0
{mso-list-id:2065787538;
mso-list-type:hybrid;
mso-list-template-ids:1975025524 67698689 67698691 67698693 67698689 67698691 67698693 67698689 67698691 67698693;}
@list l0:level1
{mso-level-number-format:bullet;
mso-level-text:;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;
font-family:Symbol;}
@list l0:level2
{mso-level-number-format:bullet;
mso-level-text:o;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;
font-family:"Courier New";}
@list l0:level3
{mso-level-number-format:bullet;
mso-level-text:;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;
font-family:Wingdings;}
@list l0:level4
{mso-level-number-format:bullet;
mso-level-text:;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;
font-family:Symbol;}
@list l0:level5
{mso-level-number-format:bullet;
mso-level-text:o;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;
font-family:"Courier New";}
@list l0:level6
{mso-level-number-format:bullet;
mso-level-text:;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;
font-family:Wingdings;}
@list l0:level7
{mso-level-number-format:bullet;
mso-level-text:;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;
font-family:Symbol;}
@list l0:level8
{mso-level-number-format:bullet;
mso-level-text:o;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;
font-family:"Courier New";}
@list l0:level9
{mso-level-number-format:bullet;
mso-level-text:;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;
font-family:Wingdings;}
ol
{margin-bottom:0in;}
ul
{margin-bottom:0in;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang="EN-US" link="blue" vlink="purple">
<div class="WordSection1">
<p class="MsoNormal"><span style="color:#1F497D">I haven’t heard a compelling need to align the validity of EV with OV/DV other than “consistency”. I’m perfectly happy doing different things for different products (as we do today) and don’t feel that alignment
is necessary or warranted. Is something busted with 39 month DV/OV or with 27 month EV? What are we trying to accomplish?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">If we start go do this road will SCTs, CAA, OCSP Stapling, wildcard certs, etc. start to modify the age of Certificate Data or the max validity period? If we have a security issue or concern and want to adjust
the max validity period, let’s discuss it, but making change for consistency is not a worthwhile endeavor, imho.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Doug<o:p></o:p></span></p>
<p class="MsoNormal"><a name="_MailEndCompose"><span style="color:#1F497D"><o:p> </o:p></span></a></p>
<div>
<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b>From:</b> public-bounces@cabforum.org [mailto:public-bounces@cabforum.org]
<b>On Behalf Of </b>kirk_hall@trendmicro.com<br>
<b>Sent:</b> Tuesday, March 24, 2015 2:50 PM<br>
<b>To:</b> CABFPub (public@cabforum.org)<br>
<b>Subject:</b> [cabfpub] Lifecycle of EV certs<o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="color:black">Chris Bailey and I have discussed this topic, and our preferences would be as follows:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">(1) Make the permitted lifetime of all SSL certs (EV, OV, and DV) certs
<u>the same</u> – whether 1, 2, or 3 years. Our preference would be 3 years (actually, 39 months), but we would settle for 2 years (actually, 27 months) for all certs. That makes for consistency, and puts the focus on the quality of the issuance process among
the three cert types, without changing the permitted validity periods.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">(2) Make the revetting rules the same for EV, OV, and DV – each type of cert is vetted in a different manner, so we should make the frequency of revetting the same for the sake of consistency (just once, at the
time of issuance). So even if EV certs are issued for 2 or 3 years, we not require interim revetting by the CA at 12 month periods with revocation if the interim revetting can’t be completed successfully. One vetting for the EV cert validity period is enough.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">Here is our reasoning.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"> <o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo2"><![if !supportLists]><span style="font-family:Symbol;color:black"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="color:black">On maximum cert lifetime as well as revetting frequency for EV certs: In our experience the validity of an earlier EV vetting virtually never changes after 12 months – the business is the same, etc.
So why force more frequent revetting and issuance for EV certs, where the customer has already taken the extra vetting steps for stronger EV authentication at the start (as compared to an OV cert or DV cert owner)?<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo2"><![if !supportLists]><span style="font-family:Symbol;color:black"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="color:black">The EV Guidelines already allow some reuse of EV vetting data under EVGL 11.14.3, and we are not aware of any problems this has caused.<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo2"><![if !supportLists]><span style="font-family:Symbol;color:black"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="color:black">Some have validly pointed out that technical cert requirements change over time, which argues for shorter term validity for all certificate types. We agree with that consideration, and were in strong
support of the Forum’s earlier decision to shorten maximum DV and OV certificate validity to 3 years. In general, we think 3 years is a reasonable transition time for most changes in certificate technical standards (so that the CA can wait until renewal of
the cert to move to the new technical standard for that customer). However, if a critical technical issue arises (such as SHA-1 deprecation) that requires a faster transition, we have already seen that CAs and customers can complete reissue and installation
of updated certs in a compressed timeframe.<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b><i><span style="font-size:14.0pt;font-family:"Bradley Hand ITC";color:#0F243E">Kirk R. Hall<o:p></o:p></span></i></b></p>
<p class="MsoNormal">Operations Director, Trust Services<o:p></o:p></p>
<p class="MsoNormal">Trend Micro<o:p></o:p></p>
<p class="MsoNormal">+1.503.753.3088<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<table class="MsoNormalTable" border="0" cellspacing="3" cellpadding="0">
<tbody>
<tr>
<td style="background:white;padding:.75pt .75pt .75pt .75pt">
<table class="MsoNormalTable" border="0" cellspacing="3" cellpadding="0">
<tbody>
<tr>
<td style="padding:.75pt .75pt .75pt .75pt">
<pre><o:p> </o:p></pre>
<pre>TREND MICRO EMAIL NOTICE<o:p></o:p></pre>
<pre>The information contained in this email and any attachments is confidential <o:p></o:p></pre>
<pre>and may be subject to copyright or other intellectual property protection. <o:p></o:p></pre>
<pre>If you are not the intended recipient, you are not authorized to use or <o:p></o:p></pre>
<pre>disclose this information, and we request that you notify us by reply mail or<o:p></o:p></pre>
<pre>telephone and delete the original message from your mail system.<o:p></o:p></pre>
</td>
</tr>
</tbody>
</table>
</td>
</tr>
</tbody>
</table>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif"><o:p> </o:p></span></p>
</div>
</body>
</html>