Date: Tue, 21 Aug 2012 11:43:15 +0300 From: Konstantin Belousov <kostikbel@gmail.com> To: Poul-Henning Kamp <phk@phk.freebsd.dk> Cc: Doug Barton <dougb@freebsd.org>, Ben Laurie <ben@links.org>, Steve Kargl <sgk@troutmask.apl.washington.edu>, freebsd-arch@freebsd.org Subject: Re: /dev/random Message-ID: <20120821084315.GL33100@deviant.kiev.zoral.com.ua> In-Reply-To: <76710.1345538028@critter.freebsd.dk> References: <CAG5KPzxd16k12adjsbtF5S7XTYk61rkv903nUc0ub=c0bHBKCg@mail.gmail.com> <76710.1345538028@critter.freebsd.dk>
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--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 <CAG5KPzxd16k12adjsbtF5S7XTYk61rkv903nUc0ub=3Dc0bHBKCg@mail.gm= ail.com> > , 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--
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