Date: Wed, 19 Jul 2000 12:21:55 -0600 From: Warner Losh <imp@village.org> To: Poul-Henning Kamp <phk@critter.freebsd.dk> Cc: Mark Murray <mark@grondar.za>, current@FreeBSD.ORG Subject: Re: randomdev entropy gathering is really weak Message-ID: <200007191821.MAA83214@harmony.village.org> In-Reply-To: Your message of "Wed, 19 Jul 2000 20:09:48 %2B0200." <946.964030188@critter.freebsd.dk> References: <946.964030188@critter.freebsd.dk>
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In message <946.964030188@critter.freebsd.dk> Poul-Henning Kamp writes: : A geiger counter and a smoke-detector would be *so much* cheaper : and give more bits per second :-) Agreed. And a lot less hassle. A *LOT* less hassle. :-) : >It certainly would be better than nothing and would be a decent source : >of randomness. It would be my expectation that if tests were run to : >measure this randomness and the crypto random tests were applied, : >we'd find a fairly good source. : : The trick here is to actually measure the quality of our entropy. : I have asked Markm to provide us with some kernel option which can : be used to get a copy of the entropy so we can study the quality : off it. Yes. That's the hard part. that's one area where my knowledge is somewhat weak. : BTW: You have *no* idea how much I envy your access to high quality : timing hardware :-) Well, there are hidden benefits working here that I never knew :-) Warner To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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