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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Hi<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">Is this the right mailing list to ask this question ?<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">Can somebody suggest a better ML
<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">Thanks<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"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext">From:</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext"> Alex Samad - Yieldbroker
<br>
<b>Sent:</b> Wednesday, 18 March 2015 2:21 PM<br>
<b>To:</b> openssl-users@openssl.org<br>
<b>Subject:</b> RE: [openssl-users] question about resigning a certificate<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Hi<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">I have done that and compared the output with diff<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"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">The only differences are<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Serial number<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Signature algo<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Comment<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Signature.<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">Alex<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>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext">From:</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext"> openssl-users [<a href="mailto:openssl-users-bounces@openssl.org">mailto:openssl-users-bounces@openssl.org</a>]
<b>On Behalf Of </b>Jakob Bohm<br>
<b>Sent:</b> Wednesday, 18 March 2015 6:50 AM<br>
<b>To:</b> <a href="mailto:openssl-users@openssl.org">openssl-users@openssl.org</a><br>
<b>Subject:</b> Re: [openssl-users] question about resigning a certificate<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><tt><span style="font-size:10.0pt">On 16/03/2015 02:46, Alex Samad - Yieldbroker wrote:</span></tt><o:p></o:p></p>
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<pre>Hi<o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre>I had a sha1 signed CA and I issued other identity and CA certificates from this CA.<o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre>With the deprecation of sha1 coming, I resigned my original CA (self signed) as sha512, with the same creation and expiry dates. I believe the only thing changed was the signature and serial number.<o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre>But when I go to verify older certs that were signed by the original CA (the sha1 signed one), they are no longer valid.<o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre>I thought if I used the same private and public key I should be okay. I thought the only relevant issue was the issuer field and that the CA keys where the same . Was I wrong.<o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre>Alex<o:p></o:p></pre>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><tt><span style="font-size:10.0pt">Run openssl x509 -noout -text -in OneOfYourIssuedCerts.pem | more</span></tt><span style="font-size:10.0pt;font-family:"Courier New""><br>
<br>
<tt>Look at what aspects of your CA are mentioned. For example,</tt><br>
<tt>does it include the "X509v3 Authority Key Identifier"</tt><br>
<tt>extension, and if so, which fields from the CA cert are</tt><br>
<tt>included?</tt></span><span style="font-size:10.0pt;font-family:"Courier New";color:#1F497D"><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" style="margin-bottom:12.0pt"><o:p> </o:p></p>
<pre>Enjoy<o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre>Jakob<o:p></o:p></pre>
<pre>-- <o:p></o:p></pre>
<pre>Jakob Bohm, CIO, Partner, WiseMo A/S. <a href="http://www.wisemo.com">http://www.wisemo.com</a><o:p></o:p></pre>
<pre>Transformervej 29, 2860 Søborg, Denmark. Direct +45 31 13 16 10<o:p></o:p></pre>
<pre>This public discussion message is non-binding and may contain errors.<o:p></o:p></pre>
<pre>WiseMo - Remote Service Management for PCs, Phones and Embedded <o:p></o:p></pre>
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