title: How to import RSA keys on Mac OS X Yosemite?
body: <p>Doing the following:</p>
  
  <pre><code>ssh-keygen -t rsa
  ...
  security import ~/.ssh/id_rsa -k login.keychain -t priv -f openssh2
  </code></pre>
  
  <p>I get the following error:</p>
  
  <pre><code>security: SecKeychainItemImport: Unknown format in import.
  </code></pre>