From owner-freebsd-security Fri Jun 13 10:48:14 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.5/8.8.5) id KAA09632 for security-outgoing; Fri, 13 Jun 1997 10:48:14 -0700 (PDT) Received: from sendero-ppp.i-connect.net (sendero-ppp.i-Connect.Net [206.190.143.100]) by hub.freebsd.org (8.8.5/8.8.5) with SMTP id KAA09613 for ; Fri, 13 Jun 1997 10:48:03 -0700 (PDT) Received: (qmail 17400 invoked by uid 1000); 13 Jun 1997 17:47:32 -0000 Message-ID: X-Mailer: XFMail 1.2-alpha [p0] on FreeBSD Content-Type: text/plain; charset=iso-8859-8 Content-Transfer-Encoding: 8bit MIME-Version: 1.0 In-Reply-To: <199706062115.RAA12756@khavrinen.lcs.mit.edu> Date: Fri, 13 Jun 1997 10:47:32 -0700 (PDT) Organization: Atlas Telecom From: Simon Shapiro To: Garrett Wollman Subject: Re: sequence predictability (fwd) Cc: security@FreeBSD.ORG Sender: owner-security@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk Hi Garrett Wollman; On 06-Jun-97 you wrote: > < said: > > > Good Idea. /dev/rand, setup properly produces very good results. > > It's also far too slow. > > If I had a working kernel debugger at the moment (it's sick from > version skew at the moment) or BPF (it's in use by something else) I > could document precisely how the ISS changes. In the current design, > it is incremented by a random amount which averages to approximately > the old rate. OK, Bad Idea, then :-) I think the true solution is elsewhere but will not voice my (politically incorrect) idea in public. Simon