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Article #12736Re: random number generator in hardware
From: Henry Spencer
Date: Fri, 21 Nov 1986 18:51
Date: Fri, 21 Nov 1986 18:51
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> > My understanding is that the problem is avoiding bias in the resulting
> > numbers...
>
> How about taking the exclusive-or of several such random bit generators?
> This converges exponentially toward probability 1/2 as the number of
> bits xor'ed increases.
Only if the generators drift independently, which in general they won't:
things like temperature and aging effects will be similar for all.
--
Henry Spencer @ U of Toronto Zoology
{allegra,ihnp4,decvax,pyramid}!utzoo!henry
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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: arc1-ca.pugleaf.net!utzoo!henry From: henry@utzoo.UUCP (Henry Spencer) Newsgroups: comp.arch Subject: Re: random number generator in hardware Message-ID: <7334@utzoo.UUCP> Date: Fri, 21-Nov-86 13:51:39 EST Article-I.D.: utzoo.7334 Posted: Fri Nov 21 13:51:39 1986 Date-Received: Fri, 21-Nov-86 13:51:39 EST References: <317@zuring.mcvax.UUCP> <267@bath63.UUCP> Organization: U of Toronto Zoology Lines: 12