Date: Mon, 03 Feb 2003 00:03:38 +0000 From: Tony Finch <dot@dotat.at> To: mark@grondar.org Cc: current@freebsd.org Subject: Re: rand() is broken Message-ID: <E18fU5K-0006VP-00@chiark.greenend.org.uk> In-Reply-To: <200302021836.h12Ia2aX049696@grimreaper.grondar.org> References: <20030202182009.GA66318@nagual.pp.ru>
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Mark Murray <mark@grondar.org> wrote: > >3) int random(void) which returns a number statistically > random in all bits. > >We have most of this, and RC4 can deliver. RC4's "licence" is >fine. Call it "ArCFour" and there is no problem. The code is >small, fast and repeatable, and meets conditions 1-4 above. Note that POSIX 2001 states that random() uses a non-linear additive feedback random-number generator, and strongly implies that rand() uses the traditional brain-dead algorithm. Tony. -- f.a.n.finch <dot@dotat.at> http://dotat.at/ SOLE LUNDY FASTNET: WEST VEERING NORTHWEST 6 OR 7, OCCASIONALLY GALE 8. RAIN OR SQUALLY SHOWERS. MODERATE OR GOOD. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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