RSA authentication will only be
attempted if the identity file exists, or an authentication agent is
running.
+.It Cm SkeyAuthentication
+Specifies whether to use
+.Xr skey 1
+authentication. The argument to
+this keyword must be
+.Dq yes
+or
+.Dq no .
+The default is
+.Dq no .
.It Cm CheckHostIP
If this flag is set to
.Dq yes ,