The secondary table index used to select one of the client authentication public keys for a particular remote access Id. The index is an integer value from 1 to N where N is the number of keys associated with a particular remote access Id. An addition always causes the value of N to increase by one, effectively adding an entry after the existing keys for that remote access Id. If an entry is deleted from the table by setting mmSshClientAuthPubKeyEntryStatus = invalid, the key associated with that entry is deleted. If the deleted key was not the last key for a remote access Id (mmSshClientAuthPubKeyIndex is not the 'last' or Nth entry), the subsequent entries are renumbered after the deletion. A deletion always causes the value of N to decrease by one. The underlying SSH server implementation searches the keys in order from 1 to N when attempting public key authentication. NOTE:A maximum of 4 public keys can be installed for one remote access Id.