[147062] in cryptography@c2.net mail archive
Re: [Cryptography] Radioactive random numbers
daemon@ATHENA.MIT.EDU (Peter Gutmann)
Thu Sep 12 10:33:41 2013
X-Original-To: cryptography@metzdowd.com
Date: Thu, 12 Sep 2013 19:14:15 +1200
From: Peter Gutmann <pgut001@cs.auckland.ac.nz>
To: cryptography@metzdowd.com, dave@horsfall.org
In-Reply-To: <alpine.BSF.2.00.1309120837580.84692@aneurin.horsfall.org>
Errors-To: cryptography-bounces+crypto.discuss=bloom-picayune.mit.edu@metzdowd.com
Dave Horsfall <dave@horsfall.org> writes:
>Given that there is One True Source of randomness to wit radioactive
>emission, has anyone considered playing with old smoke detectors?
>
>The ionising types are being phased out in favour of optical (at least in
>Australia) so there must be heaps of them lying around.
If you're in Australia you don't need to use smoke detectors, you've got
direct access to the real stuff. I've used a lump of Australian uranium ore
with my geiger counter in the past. Problem is that this is hardly scalable.
Peter.
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