From owner-freebsd-security@FreeBSD.ORG Fri Sep 14 14:46:24 2012 Return-Path: Delivered-To: freebsd-security@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 83D841065670; Fri, 14 Sep 2012 14:46:24 +0000 (UTC) (envelope-from rwmaillists@googlemail.com) Received: from mail-ey0-f182.google.com (mail-ey0-f182.google.com [209.85.215.182]) by mx1.freebsd.org (Postfix) with ESMTP id 3B12B8FC08; Fri, 14 Sep 2012 14:46:22 +0000 (UTC) Received: by eaak11 with SMTP id k11so1774437eaa.13 for ; Fri, 14 Sep 2012 07:46:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=20120113; h=date:from:to:cc:subject:message-id:in-reply-to:references:x-mailer :mime-version:content-type:content-transfer-encoding; bh=vM3GgBWk93bEMeABynnAIgs0QAIN9RM5d+UeHf5Ikrc=; b=o1WOFahJKYt0WlsMiq9sk9Pjl6+x+/c55qQYdT171RrnhbM+ZTdUKm3DDsWFYlcA0R M1ZZwR9q4s1XUTU0VQ6qPKojTe1kEjyGdHddDa9XI2w2X4tQo2Kv1FjgW3noj2896uNJ iG5TkoKd2oHNgHjsE4AC9gTTL/OvRg/b5JnbeeOYZO+toNBHjK5UfigtUH2AoDKY5/k/ BKvAwKanZfdOirgJc4C7R4Ra+BKezVVCF4Dkkt1VWH9YY1TJIogcexEhOksSNTRBaA1c BhR//7+ugzTau6vFqrPWyihEgEmino0xCiDpK+/PDmOAGtlEzcP3znNM4LxwLtW0JVdH 2Lig== Received: by 10.14.225.200 with SMTP id z48mr3776408eep.39.1347633981971; Fri, 14 Sep 2012 07:46:21 -0700 (PDT) Received: from gumby.homeunix.com (87-194-105-247.bethere.co.uk. [87.194.105.247]) by mx.google.com with ESMTPS id k49sm5074085een.4.2012.09.14.07.46.18 (version=SSLv3 cipher=OTHER); Fri, 14 Sep 2012 07:46:20 -0700 (PDT) Date: Fri, 14 Sep 2012 15:46:17 +0100 From: RW To: Ben Laurie Message-ID: <20120914154617.39025ac0@gumby.homeunix.com> In-Reply-To: References: <50453686.9090100@FreeBSD.org> <20120911082309.GD72584@dragon.NUXI.org> <504F0687.7020309@FreeBSD.org> <201209121628.18088.jhb@freebsd.org> <5050F477.8060409@FreeBSD.org> <20120912213141.GI14077@x96.org> <20120913052431.GA15052@dragon.NUXI.org> X-Mailer: Claws Mail 3.8.1 (GTK+ 2.24.6; amd64-portbld-freebsd8.3) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: Arthur Mesh , Lepore , Ian, Doug Barton , freebsd-security@freebsd.org, "Bjoern A. Zeeb" Subject: Re: svn commit: r239569 - head/etc/rc.d X-BeenThere: freebsd-security@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Security issues \[members-only posting\]" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 14 Sep 2012 14:46:24 -0000 On Fri, 14 Sep 2012 14:43:53 +0100 Ben Laurie wrote: > On Fri, Sep 14, 2012 at 2:38 PM, Bjoern A. Zeeb > wrote: > > 7) send all data to the kernel and hash (arch dependent?) it + > > counter value into the buffer on overflow, as in b[n] = H(b[n] + c > > + i[n]) in the kernel > > (can control when buffer full and only then take action when > > needed, indepedent on how seed data is chosen, uses standard > > technology) > > IMO, this is the only good option. No it isn't. I means that the hashing is unconditional, so anyone that needs a faster boot needs to patch the kernel. It has no advantage whatsoever over a minor change to initrandom.