reauthentication

[Jakob Schlyter <jakob%crt.se@localhost>]

hi,

has anyone considered adding reauthentication support for ssh? I like the
server to request that the client reauthenticates from time to time.

this could be very useful for some authentication methods, e.g. smartcard,
where the authentication process requires a physical device to be attached
to the client - if the device is removed, the connection could be
terminated.

	jakob