Date: Sat, 5 Aug 2000 19:22:29 +0200 From: alex@big.endian.de (Alexander Langer) To: Poul-Henning Kamp <phk@critter.freebsd.dk> Cc: John Cochran <jdc@fiawol.org>, freebsd-hackers@FreeBSD.ORG Subject: Re: How to make *real* random bits. Message-ID: <20000805192229.A626@cichlids.cichlids.com> In-Reply-To: <13360.965189741@critter.freebsd.dk>; from phk@critter.freebsd.dk on Wed, Aug 02, 2000 at 06:15:41AM %2B0200 References: <200008012016.QAA34620@smof.fiawol.org> <13360.965189741@critter.freebsd.dk>
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Thus spake Poul-Henning Kamp (phk@critter.freebsd.dk): > >between events. Because of this your T3 value can be considered the T1 > >value for the next random bit you generate. > No it cannot. If you did that then the probability would skew from > bit to bit. If the (t3-t2) was large bit N == 1 and the probability > of bit N+1 == 0 is > .5 then. Yes, but you can use the 3rd bit as bit 1 for the next step. With 15 events, that gives 7 bits/second: bit 1: 3 1 (is event 3 of the last bit) bit 2: 2 1st bit 3: 3 1 bit 4: 2 2nd bit 5: 3 1 bit 6: 2 3rd bit 7: 3 1 bit 8: 2 4th bit 9: 3 1 bit 10: 2 5th bit 11: 3 1 bit 12: 2 6th bit 13: 3 1 bit 14: 2 7th bit 15: 3 1 (is event 1 for the next bit) Alex -- cat: /home/alex/.sig: No such file or directory To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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