From owner-freebsd-arch Sun Feb 25 15:29:25 2001 Delivered-To: freebsd-arch@freebsd.org Received: from nagual.pp.ru (pobrecita.freebsd.ru [194.87.13.42]) by hub.freebsd.org (Postfix) with ESMTP id 504ED37B491; Sun, 25 Feb 2001 15:29:14 -0800 (PST) (envelope-from ache@nagual.pp.ru) Received: (from ache@localhost) by nagual.pp.ru (8.11.2/8.11.2) id f1PNT6561417; Mon, 26 Feb 2001 02:29:06 +0300 (MSK) (envelope-from ache) Date: Mon, 26 Feb 2001 02:29:03 +0300 From: "Andrey A. Chernov" To: Kris Kennaway Cc: arch@FreeBSD.ORG, "Jacques A. Vidrine" , Matt Dillon , Bruce Evans , Robert Watson , Nick Sayer , cvs-all@FreeBSD.ORG Subject: Re: rand.c patch for review (was: Re: cvs commit: ports/astro/xglobe/files patch-random) Message-ID: <20010226022902.A61216@nagual.pp.ru> References: <20010225092416.A46959@hamlet.nectar.com> <20010225185535.A55782@nagual.pp.ru> <20010225191316.A56093@nagual.pp.ru> <20010225193409.A56351@nagual.pp.ru> <20010225131002.A38192@mollari.cthul.hu> <20010225132152.A39554@mollari.cthul.hu> <20010226005004.B59772@nagual.pp.ru> <20010225135429.A47615@mollari.cthul.hu> <20010226020827.A61007@nagual.pp.ru> <20010225151519.A63582@mollari.cthul.hu> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-md5; protocol="application/pgp-signature"; boundary="2oS5YaxWCcQjTEyO" Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <20010225151519.A63582@mollari.cthul.hu>; from kris@obsecurity.org on Sun, Feb 25, 2001 at 03:15:19PM -0800 Sender: owner-freebsd-arch@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG --2oS5YaxWCcQjTEyO Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sun, Feb 25, 2001 at 15:15:19 -0800, Kris Kennaway wrote: > On Mon, Feb 26, 2001 at 02:08:28AM +0300, Andrey A. Chernov wrote: > > > Yet it's still used bogusly for cryptographic needs - e.g. even > > > XFree86 4.x seems to use rand() for generating cookies, I discovered > > > last night (as a result of my rand() warning :-). If we fix up rand() > > > to have a decent cryptographic behaviour, we save all the idiot > > > programmers from themselves. > >=20 > > Bad news: we can't implement r_rand() via random() algorithm because > > r_rand() keeps its state in extenal unsigned variable (not in big table > > needed for random()). So, I suggest again to use my patch since it _is_ > > r_rand() compatible. >=20 > Hmm. Perhaps there's a way around that -- having a single state > variable really does weaken things here. Anyone have any ideas? As manpage says: "The rand_r() function is as proposed in the POSIX.4a Draft #6 document" Does anybody knows is there new versions of this draft exists and what they say? --=20 Andrey A. Chernov http://ache.pp.ru/ --2oS5YaxWCcQjTEyO Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: 2.6.3ia iQCVAwUBOpmVPeJgpPLZnQjrAQHb9QQAzGK+xk+8QqDRA+ANcf6ts3O/KVzTy5vl JPVi0yZJblSQbCIvni/TGmnPigAxPLZgBW3/oyolvnHNNwOELvlJ0tLyB5neiv18 cpYCfjle85V3obQtZuybKpJqqed4aox5AwTV0a8L7G6dx9SKBQVavHSkdF4SqVaB s4hOFrznWXs= =nnB9 -----END PGP SIGNATURE----- --2oS5YaxWCcQjTEyO-- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message