Path: utzoo!utgpu!watserv1!watmath!att!linac!pacific.mps.ohio-state.edu!zaphod.mps.ohio-state.edu!sdd.hp.com!spool.mu.edu!uunet!shelby!B.GP.CS.CMU.EDU!mdl From: mdl@B.GP.CS.CMU.EDU (Mark Lillibridge) Newsgroups: comp.protocols.kerberos Subject: timestamp in authentication process Message-ID: <9102281918.AA05488@shelby.Stanford.EDU> Date: 28 Feb 91 19:18:29 GMT References: <9140@star.cs.vu.nl> Sender: news@shelby.stanford.edu (USENET News System) Organization: Internet-USENET Gateway at Stanford University Lines: 10 > These are just some sunday morning thoughts, perhaps someone would like > to comment on this ? For example, I don't see the point in using timestamps; > using (unique:-) random numbers as nonces would do just as well. A lot > of authentication protocols use random numbers as nonces, these seem to > behave much cleaner (no hairy details like synchronized time). But... where do you get the random numbers from? There are no random numbers available on a public workstation before a user logs in. - Mark Lillibridge