[time-nuts] are any time-nuts also random-nuts?
Keith Payea
kpayea at bryantlabs.net
Wed Dec 23 16:55:25 UTC 2009
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. There are no "magic/secret" frequencies any more. I got into
time-nuttiness from an interest in Radio Astronomy, and all Radio Telescopes
must be frequency agile, and all results must be screened for possible
man-made interference.
The noise diode and associated circuit might be an elegant solution in a
vacuum, but I suspect that keeping electrical interference from biasing the
results might complicate the problem quite a lot.
Anyway, it's more interesting to watch it at work on your desk than just the
glowing LED on an electrical noise source!
Cheers,
Keith
-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of Brooke Clarke
Sent: Wednesday, December 23, 2009 8:42 AM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] are any time-nuts also random-nuts?
Hi Scott:
You can use a noise diode followed by a bias removal circuit to get true
random numbers in a much simpler way.
Have Fun,
Brooke Clarke
http://www.PRC68.com
Scott Burris wrote:
> I saw this USB connected hourglass for producing random numbers:
>
> http://home.comcast.net/%7Ehourglass/
>
> Anyone pursuing perfect randomness in the same way this group pursues
> time and frequency? Maybe cryptologists.
>
> I'm tempted to build an ethernet connected variant of this. Then of
> course we need a distribution mechanism. How about RNDP, the Random
> Number Distribution Protocol? A la NTP, clients could select for the
> server with the most randomness :-)
>
> Scott
>
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