title: Non-Apple Issued Code Signing Certificate: Can it Work with Mac OS 10.8 Gatekeeper?
body: <p>Our company develops our application for both Mac OS X and Windows.  We have an existing purchased code signing certificate from a non-Apple authority we use to ID our Windows installers.  We distribute both our DMGs &amp; MSIs through our own company website.</p>
  <p>The <a href="https://developer.apple.com/library/mac/#documentation/Security/Conceptual/CodeSigningGuide/Procedures/Procedures.html#//apple_ref/doc/uid/TP40005929-CH4-SW2" rel="nofollow noreferrer">code signing guide</a> for Mountain Lion's new Gatekeeper feature seems to imply that a non-Apple issued standard certificate would work, though I could be misinterpreting what &quot;third-party&quot; means in this case:</p>
  <blockquote>
  <p><B>Note:</B> Apple uses the industry-standard form and format of code signing
  certificates. Therefore, if your company already has a third-party
  signing  identity that you use to sign code on other systems, you can
  use it with the  OS X codesign command...</p>
  </blockquote>
  <p>Is it possible to use this non-Apple certificate, and if so, how could it be incorporated using the command line &quot;codesign&quot; command?</p>