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<p>My apologies for late response. I was out of office for an extended period of time. I should be able to finalize below email this week and get back to the thread. Thanks for your patience.</p>
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<p>Anoosh</p>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Bruce Morton <bruce.morton@entrust.com><br>
<b>Sent:</b> Monday, April 27, 2015 12:13 PM<br>
<b>To:</b> Anoosh Saboori; Rick Andrews; Erwann Abalea; public@cabforum.org<br>
<b>Subject:</b> RE: [cabfpub] Updates to Microsoft SHA-1 deprecation</font>
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<span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D">Hi Anoosh,</span></p>
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<span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D"> </span></p>
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<span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D">Is there any update to this request?</span></p>
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<span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D"> </span></p>
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<span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D">Thanks, Bruce.</span></p>
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<span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D"> </span></p>
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<b><span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:windowtext">From:</span></b><span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:windowtext"> public-bounces@cabforum.org [mailto:public-bounces@cabforum.org]
<b>On Behalf Of </b>Anoosh Saboori<br>
<b>Sent:</b> Monday, March 23, 2015 3:35 PM<br>
<b>To:</b> Rick Andrews; Erwann Abalea; public@cabforum.org<br>
<b>Subject:</b> Re: [cabfpub] Updates to Microsoft SHA-1 deprecation</span></p>
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<span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D">I am consolidating the feedbacks and get back to you shortly.
</span></p>
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<span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D"> </span></p>
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<b><span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:windowtext">From:</span></b><span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:windowtext">
<a href="mailto:public-bounces@cabforum.org" style="color: blue; text-decoration: underline;">
public-bounces@cabforum.org</a> [<a href="mailto:public-bounces@cabforum.org" style="color: blue; text-decoration: underline;">mailto:public-bounces@cabforum.org</a>]
<b>On Behalf Of </b>Rick Andrews<br>
<b>Sent:</b> Monday, March 23, 2015 10:52 AM<br>
<b>To:</b> Erwann Abalea; <a href="mailto:public@cabforum.org" style="color: blue; text-decoration: underline;">
public@cabforum.org</a><br>
<b>Subject:</b> Re: [cabfpub] Updates to Microsoft SHA-1 deprecation</span></p>
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<span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D">Thanks, Erwann. I missed that.</span></p>
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<span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D"> </span></p>
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<span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D">Two questions for Anoosh:</span></p>
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<span style="">1)<span style="font:7.0pt "Times New Roman""> </span></span><span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D">What’s the rationale for 1/1/2016? I’m almost certain that Tom said it wouldn’t be required until
1/1/2017.</span></p>
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<span style="">2)<span style="font:7.0pt "Times New Roman""> </span></span><span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D">Echoing Bruce’s comment, is there any way that you can pull all the details together in a more understandable
format? IMO, I shouldn’t have to read through all 5 pages of comments to see what the policy is. It’s great that Microsoft accepts comments (and answers them!) but if someone posts a question it probably means that the policy statement is lacking, and should
be updated.</span></p>
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<span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D"> </span></p>
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<span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D">-Rick</span></p>
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<span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D"> </span></p>
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<b><span style="font-size:10.0pt; font-family:"Tahoma",sans-serif; color:windowtext">From:</span></b><span style="font-size:10.0pt; font-family:"Tahoma",sans-serif; color:windowtext">
<a href="mailto:public-bounces@cabforum.org" style="color: blue; text-decoration: underline;">
public-bounces@cabforum.org</a> [<a href="mailto:public-bounces@cabforum.org" style="color: blue; text-decoration: underline;">mailto:public-bounces@cabforum.org</a>]
<b>On Behalf Of </b>Erwann Abalea<br>
<b>Sent:</b> Monday, March 23, 2015 9:05 AM<br>
<b>To:</b> <a href="mailto:public@cabforum.org" style="color: blue; text-decoration: underline;">
public@cabforum.org</a><br>
<b>Subject:</b> Re: [cabfpub] Updates to Microsoft SHA-1 deprecation</span></p>
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<a href="http://blogs.technet.com/b/pki/archive/2013/11/12/sha1-deprecation-policy.aspx#pi47623=2" style="color: blue; text-decoration: underline;">http://blogs.technet.com/b/pki/archive/2013/11/12/sha1-deprecation-policy.aspx#pi47623=2</a><br>
<br>
CRLs will be SHA2-signed by 01/01/2016. See responses by "Amerk [MSFT]".<br>
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<pre style="margin: 0in 0in 0.0001pt; font-size: 10pt; font-family: 'Courier New'; color: black;">-- </pre>
<pre style="margin: 0in 0in 0.0001pt; font-size: 10pt; font-family: 'Courier New'; color: black;">Erwann ABALEA</pre>
<pre style="margin: 0in 0in 0.0001pt; font-size: 10pt; font-family: 'Courier New'; color: black;"> </pre>
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Le 23/03/2015 16:57, Rick Andrews a écrit :</p>
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<span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D">Bruce,</span></p>
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<span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D"> </span></p>
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<span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D">At the Beijing meeting, Tom Albertson said that by 1/1/2017, even CRLs for SHA-1 roots had to be signed with SHA-2.
</span></p>
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<span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D"> </span></p>
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<span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D">Anoosh, I assume that’s still Microsoft’s policy.</span></p>
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<span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D"> </span></p>
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<span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D">-Rick</span></p>
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<span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D"> </span></p>
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<b><span style="font-size:10.0pt; font-family:"Tahoma",sans-serif">From:</span></b><span style="font-size:10.0pt; font-family:"Tahoma",sans-serif">
<a href="mailto:public-bounces@cabforum.org" style="color: blue; text-decoration: underline;">
public-bounces@cabforum.org</a> [<a href="mailto:public-bounces@cabforum.org" style="color: blue; text-decoration: underline;">mailto:public-bounces@cabforum.org</a>]
<b>On Behalf Of </b>Bruce Morton<br>
<b>Sent:</b> Monday, March 23, 2015 7:40 AM<br>
<b>To:</b> Anoosh Saboori<br>
<b>Cc:</b> CABFPub<br>
<b>Subject:</b> Re: [cabfpub] Updates to Microsoft SHA-1 deprecation</span></p>
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<span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D">Hi Anoosh,</span></p>
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<span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D"> </span></p>
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<span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D">I might be the only one, but I am a little confused regarding the Windows hashing requirements. It would be great if there was a matrix to show/confirm your requirements per Windows
version.</span></p>
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<span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D"> </span></p>
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<span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D">I am thinking that the following must be covered:</span></p>
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<span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D"> </span></p>
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<span style="font-size:11.0pt; font-family:Symbol; color:#1F497D">·</span><span style="font-size:7.0pt; color:#1F497D">
</span><span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D">SSL certificates</span></p>
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<span style="font-size:11.0pt; font-family:Symbol; color:#1F497D">·</span><span style="font-size:7.0pt; color:#1F497D">
</span><span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D">Code Signing certificates</span></p>
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</span><span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D">S/MIME certificates</span></p>
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</span><span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D">Time-stamping certificates</span></p>
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<span style="font-size:11.0pt; font-family:Symbol; color:#1F497D">·</span><span style="font-size:7.0pt; color:#1F497D">
</span><span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D">OCSP signing certificates</span></p>
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<span style="font-size:11.0pt; font-family:Symbol; color:#1F497D">·</span><span style="font-size:7.0pt; color:#1F497D">
</span><span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D">Code signing signatures</span></p>
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<span style="font-size:11.0pt; font-family:Symbol; color:#1F497D">·</span><span style="font-size:7.0pt; color:#1F497D">
</span><span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D">Time-stamp signatures</span></p>
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<span style="font-size:11.0pt; font-family:Symbol; color:#1F497D">·</span><span style="font-size:7.0pt; color:#1F497D">
</span><span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D">CRL signatures</span></p>
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<span style="font-size:11.0pt; font-family:Symbol; color:#1F497D">·</span><span style="font-size:7.0pt; color:#1F497D">
</span><span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D">OCSP signatures</span></p>
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<span style="font-size:11.0pt; font-family:Symbol; color:#1F497D">·</span><span style="font-size:7.0pt; color:#1F497D">
</span><span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D">there must be more …</span></p>
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<span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D"> </span></p>
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<span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D">An issue that I want to understand is, since some certificates can be SHA-1, can the CRL/OCSP response be signed with a SHA-1 certificate? Can the signature be SHA-1? We would need
to understand this for both root and issuing CAs.</span></p>
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<span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D"> </span></p>
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<span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D">If we can nail this down, then it will be easier to draft a spec for our implementation teams.</span></p>
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<span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D"> </span></p>
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<span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D">Thanks, Bruce.</span></p>
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<span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D"> </span></p>
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<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"> Anoosh Saboori [<a href="mailto:ansaboor@microsoft.com" style="color: blue; text-decoration: underline;">mailto:ansaboor@microsoft.com</a>]
<br>
<b>Sent:</b> Saturday, March 21, 2015 8:29 PM<br>
<b>To:</b> Bruce Morton<br>
<b>Cc:</b> CABFPub<br>
<b>Subject:</b> RE: [cabfpub] Updates to Microsoft SHA-1 deprecation</span></p>
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<span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D">Windows enforcement dates (i.e., date at which SHA-1 certificates will be rejected by Windows) only apply to SSL and code signing certificates. All other types of certificates will
be rejected on Windows side when SHA-1 pre-image attacks are deemed feasible by Microsoft.</span></p>
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<span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D"> </span></p>
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<span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D">Anoosh</span></p>
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<span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D"> </span></p>
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<a name="_MailEndCompose"></a><span style="font-size:11.0pt; font-family:"Calibri",sans-serif; color:#1F497D"> </span></p>
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<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"> Bruce Morton [<a href="mailto:bruce.morton@entrust.com" style="color: blue; text-decoration: underline;">mailto:bruce.morton@entrust.com</a>]
<br>
<b>Sent:</b> Friday, March 20, 2015 6:47 PM<br>
<b>To:</b> Anoosh Saboori<br>
<b>Cc:</b> CABFPub<br>
<b>Subject:</b> Re: [cabfpub] Updates to Microsoft SHA-1 deprecation</span></p>
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Hi Anoosh,</p>
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Thank you for the update.</p>
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I don't think the policy for S/MIME certificates has been stated. I see some discussion in the comments. Could you also advise how the SHA-1 deprecation policy applies to S/MIME certificates. </p>
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Thanks, Bruce.</p>
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On Mar 20, 2015, at 8:57 PM, Anoosh Saboori <<a href="mailto:ansaboor@microsoft.com" style="color: blue; text-decoration: underline;">ansaboor@microsoft.com</a>> wrote:</p>
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<span style="font-size:11.0pt; font-family:"Calibri",sans-serif">Hello,</span></p>
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<span style="font-size:11.0pt; font-family:"Calibri",sans-serif"> </span></p>
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<span style="font-size:11.0pt; font-family:"Calibri",sans-serif">I would like to inform you that Microsoft has made update to its SHA-1 deprecation policy to accommodate developers targeting Vista/Server 2008. Please see below.</span></p>
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<span style="font-size:11.0pt; font-family:"Calibri",sans-serif"> </span></p>
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<span style="font-size:11.0pt; font-family:"Calibri",sans-serif"><a href="http://blogs.technet.com/b/pki/archive/2013/11/12/sha1-deprecation-policy.aspx" style="color: blue; text-decoration: underline;">http://blogs.technet.com/b/pki/archive/2013/11/12/sha1-deprecation-policy.aspx</a>
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<span style="font-size:11.0pt; font-family:"Calibri",sans-serif"> </span></p>
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<span style="font-size:11.0pt; font-family:"Calibri",sans-serif">Anoosh</span></p>
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