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Date:      Fri, 13 Nov 1998 12:59:20 -0500 (EST)
From:      Garrett Wollman <wollman@khavrinen.lcs.mit.edu>
To:        Robert Watson <robert+freebsd@cyrus.watson.org>
Cc:        Cy Schubert - ITSD Open Systems Group <cschuber@uumail.gov.bc.ca>, oortiz@LCSI.COM, freebsd-security@FreeBSD.ORG
Subject:   Re: Intruder Lockout 
Message-ID:  <199811131759.MAA22375@khavrinen.lcs.mit.edu>
In-Reply-To: <Pine.BSF.3.96.981113123242.15232B-100000@fledge.watson.org>
References:  <199811131452.GAA15069@cwsys.cwsent.com> <Pine.BSF.3.96.981113123242.15232B-100000@fledge.watson.org>

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<<On Fri, 13 Nov 1998 12:39:18 -0500 (EST), Robert Watson <robert@cyrus.watson.org> said:

> designed to be, really :).  Any attempt to search passwords by repeated
> login attempts would still work, although there is now a centralized

Not in Kerberos v5.  Krb5 supports pre-authentication for TGT
requests, such that in order to get a TGT you must already prove
cryptographically that you know the password.  That and replay
protection are the two principal advances of v5 over v4.  (Oh, it also
allows parametric selection of crypto algorithms.)

-GAWollman

--
Garrett A. Wollman   | O Siem / We are all family / O Siem / We're all the same
wollman@lcs.mit.edu  | O Siem / The fires of freedom 
Opinions not those of| Dance in the burning flame
MIT, LCS, CRS, or NSA|                     - Susan Aglukark and Chad Irschick

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