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copied!<p>I wrote <a href="http://github.com/harbulot/keygenapp/blob/4112e3f6d9cf49fd5d48daa386162b4bc300f6f6/samplewebapp/src/main/webapp/crosskeygen.js" rel="nofollow noreferrer">this script</a> a while ago for a demo (in conjunction with <a href="http://github.com/harbulot/keygenapp/blob/4112e3f6d9cf49fd5d48daa386162b4bc300f6f6/samplewebapp/src/main/webapp/index.html" rel="nofollow noreferrer">this page</a>). It supports <code><keygen/></code> and replaces it with <em>XEnroll</em> or <em>CertEnroll</em> calls on Internet Explorer. The project has evolved a bit since, but I've just tested <a href="http://github.com/harbulot/keygenapp/tree/4112e3f6d9cf49fd5d48daa386162b4bc300f6f6" rel="nofollow noreferrer">this branch</a> with IE8 on Windows 7 and it worked. The CA certificate wasn't on the client machine at all. I had to lower the security settings to 'low' for it to run the ActiveX (otherwise, it wouldn't even submit the request, so even less install the certificate in the response).</p> <p>If that helps, I do this:</p> <pre><code>try { enrollObj.InstallResponse(4, xmlHttpRequest.responseText, 0, ""); window.alert("A certificate has been installed."); } catch (e1) { try { enrollObj.InstallResponse(0, xmlHttpRequest.responseText, 0, ""); window.alert("A certificate has been installed."); } catch (e2) { window .alert("You're probably using Vista without SP1 or above, in which case you need to add the certificate of this authority as a trusted root certificate."); } } </code></pre> <p>I must admit I didn't test which of these two cases was used (as it's the same alert message).</p>

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