+command.
+.TP
+.B current-key
+The full key tag of the peer's public key currently being used. This
+may change during the life of the association.
+.TP
+.B private-key
+The private key tag being used for the peer, as passed to the
+.B ADD
+command, or the
+.RB ` \-t '
+command-line option. If neither of these was given explicitly, the
+private key tag is shown as
+.RB ` (default) ',
+since there is no fixed tag used under these circumstances.
+.TP
+.B current-private-key
+The full key tag of the private key currently being used for this
+association. This may change during the life of the association.