atom feed26 messages in org.freebsd.freebsd-archRe: Quantifying entropy
FromSent OnAttachments
Kris KennawayJul 21, 2000 6:47 pm.c
Louis A. MamakosJul 21, 2000 10:39 pm 
Brian Fundakowski FeldmanJul 22, 2000 7:14 am 
Poul-Henning KampJul 22, 2000 7:26 am 
Louis A. MamakosJul 22, 2000 7:32 am 
Poul-Henning KampJul 22, 2000 7:35 am 
John PolstraJul 22, 2000 9:55 am 
Brian Fundakowski FeldmanJul 22, 2000 10:01 am 
Louis A. MamakosJul 22, 2000 10:15 am 
Poul-Henning KampJul 22, 2000 10:26 am 
Jordan K. HubbardJul 22, 2000 2:31 pm 
Kris KennawayJul 22, 2000 6:19 pm 
Jeroen C. van GelderenJul 22, 2000 7:51 pm 
Kris KennawayJul 22, 2000 8:18 pm 
Louis A. MamakosJul 22, 2000 9:07 pm 
Kris KennawayJul 23, 2000 12:29 am 
Doug BartonJul 23, 2000 12:22 pm 
Kris KennawayJul 25, 2000 11:42 pm 
Kris KennawayJul 25, 2000 11:57 pm 
Kris KennawayJul 26, 2000 12:16 am 
Kris KennawayJul 26, 2000 1:32 am 
Mark MurrayJul 26, 2000 3:19 am 
Kris KennawayJul 26, 2000 3:50 am 
Kris KennawayJul 26, 2000 3:53 am 
Brian DeanJul 31, 2000 3:57 pm 
Mark MurrayJul 31, 2000 11:06 pm 
Subject:Re: Quantifying entropy
From:Poul-Henning Kamp (ph@critter.freebsd.dk)
Date:Jul 22, 2000 7:35:52 am
List:org.freebsd.freebsd-arch

In message <2000@whizzo.transsys.com>, "Louis A. Mamakos" writ es:

I think we're overestimating the extent of the threat. Hell, an attacker could fire a particle beam at phk's geiger counter and comprise it as well.

Actually, he would just give me more random bits that way :-)

The way to use a geiger is to time three events:

e1 e2 e3 |-T1---|---T2--|

if T1 > T2 bit == 0 else if T1 < T2 bit == 1 else try_again;

And invert every other bit to remove any systematic bias.

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