[8082] in cryptography@c2.net mail archive
Re: Lots of random numbers
daemon@ATHENA.MIT.EDU (Kris Kennaway)
Sat Nov 18 14:36:07 2000
Date: Fri, 17 Nov 2000 17:43:28 -0800
From: Kris Kennaway <kris@FreeBSD.org>
To: David Honig <honig@sprynet.com>
Cc: cryptography@c2.net
Message-ID: <20001117174328.A18556@citusc17.usc.edu>
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In-Reply-To: <3.0.6.32.20001116183235.007c6680@pop.sprynet.com>; from honig@sprynet.com on Thu, Nov 16, 2000 at 06:32:35PM -0800
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On Thu, Nov 16, 2000 at 06:32:35PM -0800, David Honig wrote:
> And don't forget to measure the entropy of your conditioned
> output. You must condition, raw measurement isn't good enough.
> Search Shannon or Maurer or "diehard" for more.
I don't understand the use of diehard for cryptographic purposes..it
is very easy to make a low-entropy source which passes the statistical
tests it performs (e.g. output of a stream cipher with a constant
key). diehard seems only useful for testing random number generators
used for statistical or simulation purposes, not cryptographic ones.
Kris
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