<sub-class-of type="application/x-x509-key"/>
    <!-- These are just a bunch of magic integers as defined by the key format... -->
    <!-- Always seem to have a version integer as their first entry, -->
    <!--  normally 00, 01 or 02, check for that -->
    <magic priority="40">
      <match value="0x3080020100" type="string"
              mask="0xFFFFFFFFFC" offset="0"/>
      <match value="0x3081FF020100" type="string"