| From | Sent On | Attachments |
|---|---|---|
| Kris Kennaway | Jul 21, 2000 6:47 pm | .c |
| Louis A. Mamakos | Jul 21, 2000 10:39 pm | |
| Brian Fundakowski Feldman | Jul 22, 2000 7:14 am | |
| Poul-Henning Kamp | Jul 22, 2000 7:26 am | |
| Louis A. Mamakos | Jul 22, 2000 7:32 am | |
| Poul-Henning Kamp | Jul 22, 2000 7:35 am | |
| John Polstra | Jul 22, 2000 9:55 am | |
| Brian Fundakowski Feldman | Jul 22, 2000 10:01 am | |
| Louis A. Mamakos | Jul 22, 2000 10:15 am | |
| Poul-Henning Kamp | Jul 22, 2000 10:26 am | |
| Jordan K. Hubbard | Jul 22, 2000 2:31 pm | |
| Kris Kennaway | Jul 22, 2000 6:19 pm | |
| Jeroen C. van Gelderen | Jul 22, 2000 7:51 pm | |
| Kris Kennaway | Jul 22, 2000 8:18 pm | |
| Louis A. Mamakos | Jul 22, 2000 9:07 pm | |
| Kris Kennaway | Jul 23, 2000 12:29 am | |
| Doug Barton | Jul 23, 2000 12:22 pm | |
| Kris Kennaway | Jul 25, 2000 11:42 pm | |
| Kris Kennaway | Jul 25, 2000 11:57 pm | |
| Kris Kennaway | Jul 26, 2000 12:16 am | |
| Kris Kennaway | Jul 26, 2000 1:32 am | |
| Mark Murray | Jul 26, 2000 3:19 am | |
| Kris Kennaway | Jul 26, 2000 3:50 am | |
| Kris Kennaway | Jul 26, 2000 3:53 am | |
| Brian Dean | Jul 31, 2000 3:57 pm | |
| Mark Murray | Jul 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.
-- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 ph...@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD coreteam member | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence.
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.c