title: Generating certificate signing request in Keychain Access: which private key is used?
body: <p>I am wondering which private key Keychain Access in Mac OS X (Snow Leopard, now Lion) uses. Whenever I create a CSR using that app, it does not even ask for a private key to use. So which one does it use then?</p>
  
  <p>I could imagine that it used the selected one, <em>if</em> you've selected one in your certificate list. But generating the request even works when nothing is selected at all or, making sure it's not an "invisible" selection, if the item that's selected is not a private key.</p>
  
  <p>Does anyone know?</p>
  
  <p>Thanks in advance</p>
  
  <p>Arne</p>