The value of the identity information for a Key Server with
its type indicated by the cgmGdoiKeyServerIdType. Use the
cgmGdoiKeyServerIdType to parse the Key Server ID correctly.
This Key Server ID value is sent as the 'SRC
Identification Data' and 'DST Identification Data' of the
KEK and TEK payloads for GDOI GROUPKEY-PULL and GROUPKEY-PUSH
exchanges.