From owner-freebsd-arch Sun Feb 25 15:15:30 2001 Delivered-To: freebsd-arch@freebsd.org Received: from obsecurity.dyndns.org (adsl-63-207-60-10.dsl.lsan03.pacbell.net [63.207.60.10]) by hub.freebsd.org (Postfix) with ESMTP id 105CD37B4EC; Sun, 25 Feb 2001 15:15:22 -0800 (PST) (envelope-from kris@obsecurity.org) Received: by obsecurity.dyndns.org (Postfix, from userid 1000) id 145E366D2E; Sun, 25 Feb 2001 15:15:19 -0800 (PST) Date: Sun, 25 Feb 2001 15:15:19 -0800 From: Kris Kennaway To: "Andrey A. Chernov" Cc: Kris Kennaway , 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: <20010225151519.A63582@mollari.cthul.hu> References: <200102250900.f1P90Qc12868@earth.backplane.com> <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> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-md5; protocol="application/pgp-signature"; boundary="n8g4imXOkfNTN/H1" Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <20010226020827.A61007@nagual.pp.ru>; from ache@nagual.pp.ru on Mon, Feb 26, 2001 at 02:08:28AM +0300 Sender: owner-freebsd-arch@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG --n8g4imXOkfNTN/H1 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable 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. Hmm. Perhaps there's a way around that -- having a single state variable really does weaken things here. Anyone have any ideas? Kris --n8g4imXOkfNTN/H1 Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.4 (FreeBSD) Comment: For info see http://www.gnupg.org iD8DBQE6mZIGWry0BWjoQKURAojFAJ9GLjwJBHEwDNyiZxWbRJEfjTLB8ACg0SIg HjUvYqVj0xFwgksM5gYqlKU= =3oaf -----END PGP SIGNATURE----- --n8g4imXOkfNTN/H1-- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message