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POThe template parameter in InitializeFromPrivateKey() on CX509CertificateRequestPkcs10 object causes exception when trying a specific Template
 

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  1. POThe template parameter in InitializeFromPrivateKey() on CX509CertificateRequestPkcs10 object causes exception when trying a specific Template
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    <p>I am having an issue with specifying the template parameter in <em>InitializeFromPrivateKey()</em> on the <em>X509Enrollment.CX509CertificateRequestPkcs10</em> object. Anything other than a template of <em>"User"</em> is resulting in the following exception:-</p> <p><strong>CertEnroll::CX509CertificateRequestPkcs10::InitializeFromPrivateKey: The requested certificate template is not supported by this CA. 0x80094800 (-2146875392)</strong> </p> <p>There is a specific Certificate template that I need to be used, and when I try it then the code throws the exception. The template exists on the CA, and on the client machine which is running the following code.</p> <p>Javascript code as follows:</p> <pre><code> &lt;script type="text/javascript"&gt; var sCertificate = null; var sDistinguishedName = "C=\"\";S=\"\";L=\"\";O=\"XXXXX\";OU=\"XXXXXXX\";E=\"XXXXX@XXXX.com\";CN=\"xxxxxxx\";"; var template = "RegistrationCert"; //Anything Other than "User" fails, have tried template Oid too. var classFactory = new ActiveXObject("X509Enrollment.CX509EnrollmentWebClassFactory"); var objEnroll = classFactory.CreateObject("X509Enrollment.CX509Enrollment"); var objPrivateKey = classFactory.CreateObject("X509Enrollment.CX509PrivateKey"); var objRequest = classFactory.CreateObject("X509Enrollment.CX509CertificateRequestPkcs10"); var objDN = classFactory.CreateObject("X509Enrollment.CX500DistinguishedName"); objPrivateKey.ProviderName = "Microsoft Enhanced Cryptographic Provider v1.0"; objPrivateKey.KeySpec = "1"; objPrivateKey.ProviderType = "1"; try { objRequest.InitializeFromPrivateKey(1, objPrivateKey, template); objDN.Encode(sDistinguishedName, 0); objRequest.Subject = objDN; objEnroll.InitializeFromRequest(objRequest); sCertificate = objEnroll.CreateRequest(1); document.writeln(sCertificate); } catch (ex) { document.writeln(ex.description); } &lt;/script&gt; </code></pre> <p><strong>Couple of other questions</strong><br> - I assume that the template should exist on the Client Machine? Otherwise how does it know the location of the CA to query for templates?<br> - Does CertEnroll on a Client even work against a Windows 2003 CA server??</p> <p>If you can help me that it would be much appreciated!!!</p> <p><strong>Additional Info</strong><br> - Client is Windows 7, with MS IE9 Client running as Administrator.<br> - Web App which hosts the above page is accessed over HTTPs.<br> - Web App is hosted on a Win2003 CA Server.</p> <p><strong>Before posting I have looked at...</strong><br> - Stackoverflow threads regarding CertEnroll + InitializeFromPrivateKey<br> - <a href="http://www.sambeauvois.be/blog/2010/04/the-ix509certificaterequestpkcs10-initializefromtemplatename-adventure/" rel="nofollow">Blogs about using Template OID not Template name</a><br> - <a href="http://blogs.msdn.com/b/alejacma/archive/tags/certenroll/" rel="nofollow">MSDN / alejacma's Site</a><br> - CertEnroll API on MSDN</p>
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