From owner-freebsd-current Wed Jul 19 14:44:51 2000 Delivered-To: freebsd-current@freebsd.org Received: from grimreaper.grondar.za (grimreaper.grondar.za [196.7.18.138]) by hub.freebsd.org (Postfix) with ESMTP id 3C69A37C0A7 for ; Wed, 19 Jul 2000 14:44:45 -0700 (PDT) (envelope-from mark@grondar.za) Received: from grimreaper.grondar.za (localhost [127.0.0.1]) by grimreaper.grondar.za (8.9.3/8.9.3) with ESMTP id XAA01127; Wed, 19 Jul 2000 23:42:25 +0200 (SAST) (envelope-from mark@grimreaper.grondar.za) Message-Id: <200007192142.XAA01127@grimreaper.grondar.za> To: Poul-Henning Kamp Cc: current@FreeBSD.ORG Subject: Re: randomdev entropy gathering is really weak References: <1159.964032973@critter.freebsd.dk> In-Reply-To: <1159.964032973@critter.freebsd.dk> ; from Poul-Henning Kamp "Wed, 19 Jul 2000 20:56:13 +0200." Date: Wed, 19 Jul 2000 23:42:25 +0200 From: Mark Murray Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG > >If the attacker is on your computer (he us a user, say), he might know > >a lot about the current frequency of your xtal. He can also get the same > >(remote) time offsets as you. What does that give him? Not much, but it > >could reduce the bits that he needs to guess. By how much? I don't > >know. > > Mark, this is one of the reasons why we need a way to measure the > quality of our entropy, please???? I understand 100%! That's why I'm doing it :-) M -- Mark Murray Join the anti-SPAM movement: http://www.cauce.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message