$AUUGid: www/data/events/2004/auug2004/theo/mgp00032.txt,v 1.1 2004/09/04 08:42:53 davidp Exp $ OpenSSH shows how complicated this can get 46 message types. Very strict rules for when each is allowed. www.citi.umich.edu/u/provos/papers/privsep.pdf