Login Delay

[Andrew W. Gaunt]

Does anyone on this list know of a way to add a delay to the login
prompt when an unauthorized user attempts to access my linux
box via ssh (port 22)? I've got this port open on the firewall/router
and try to use good passwords and all that.. logwatch reports a
number of unsuccessful attempts daily, I just want to make
it just that much harder and more painful for the bad guys.