[time-nuts] are any time-nuts also random-nuts?

Poul-Henning Kamp phk at phk.freebsd.dk
Wed Dec 23 17:38:38 UTC 2009


In message <82FEC3B10CF94496AFE52269282D7F34 at bryant1>, "Keith Payea" writes:
>Hello All:
>
>There are several electrical noise based random number generators, but most
>were concieved in a time when there was a lot less EM pollution of the
>airwaves.

Actually, that has always been a concern.

As far as I know, the first RNG to be connected to a computer was this
one:
	http://phk.freebsd.dk/misc/DASK_rng.pdf

And they specifically had to use a Lead-Acid battery as filament
supply for the noise diode to avoid EMC issues.

Poul-Henning

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.



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