From owner-freebsd-arch@FreeBSD.ORG Tue Aug 21 08:43:23 2012 Return-Path: Delivered-To: freebsd-arch@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id D47B5106564A; Tue, 21 Aug 2012 08:43:23 +0000 (UTC) (envelope-from kostikbel@gmail.com) Received: from mail.zoral.com.ua (mx0.zoral.com.ua [91.193.166.200]) by mx1.freebsd.org (Postfix) with ESMTP id 491A18FC16; Tue, 21 Aug 2012 08:43:22 +0000 (UTC) Received: from skuns.kiev.zoral.com.ua (localhost [127.0.0.1]) by mail.zoral.com.ua (8.14.2/8.14.2) with ESMTP id q7L8hSP0020203; Tue, 21 Aug 2012 11:43:28 +0300 (EEST) (envelope-from kostikbel@gmail.com) Received: from deviant.kiev.zoral.com.ua (kostik@localhost [127.0.0.1]) by deviant.kiev.zoral.com.ua (8.14.5/8.14.5) with ESMTP id q7L8hGNR093790; Tue, 21 Aug 2012 11:43:16 +0300 (EEST) (envelope-from kostikbel@gmail.com) Received: (from kostik@localhost) by deviant.kiev.zoral.com.ua (8.14.5/8.14.5/Submit) id q7L8hF5o093789; Tue, 21 Aug 2012 11:43:15 +0300 (EEST) (envelope-from kostikbel@gmail.com) X-Authentication-Warning: deviant.kiev.zoral.com.ua: kostik set sender to kostikbel@gmail.com using -f Date: Tue, 21 Aug 2012 11:43:15 +0300 From: Konstantin Belousov To: Poul-Henning Kamp Message-ID: <20120821084315.GL33100@deviant.kiev.zoral.com.ua> References: <76710.1345538028@critter.freebsd.dk> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="mQQrPwpUFXnyQ/Ik" Content-Disposition: inline In-Reply-To: <76710.1345538028@critter.freebsd.dk> User-Agent: Mutt/1.4.2.3i X-Virus-Scanned: clamav-milter 0.95.2 at skuns.kiev.zoral.com.ua X-Virus-Status: Clean X-Spam-Status: No, score=-4.0 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00 autolearn=ham version=3.2.5 X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on skuns.kiev.zoral.com.ua Cc: Doug Barton , Ben Laurie , Steve Kargl , freebsd-arch@freebsd.org Subject: Re: /dev/random X-BeenThere: freebsd-arch@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussion related to FreeBSD architecture List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 21 Aug 2012 08:43:23 -0000 --mQQrPwpUFXnyQ/Ik Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Aug 21, 2012 at 08:33:48AM +0000, Poul-Henning Kamp wrote: > In message > , Ben Laurie writes: >=20 > >>> > FreeBSD random(4) currently only supports one hardware RNG - [...] >=20 > I belive this is wrong: hifn7751.c also feeds Yarrow/random(4). >=20 > That said, purely on principle I'm with Ben here: All sources of > entropy should be fed to Yarrow by default. >=20 > I don't mind there being separate devices so you can get your bits > directly from a hardware device if you want to. The question should become much more practical in the short term, since IvyBridge has supposedly high-quality RNG in CPU (uncore). It would be on large percentage of the machines in the near future, as opposed to somewhat exotic add-on cards or VIA CPUs. --mQQrPwpUFXnyQ/Ik Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (FreeBSD) iEYEARECAAYFAlAzSiMACgkQC3+MBN1Mb4hLyACgo5FurwdHTOqgTFj4BoyBA2he 3QMAn3MCbVPWHItC6OBjQs8Xw5HxsOAM =OXIg -----END PGP SIGNATURE----- --mQQrPwpUFXnyQ/Ik--