[11195] in cryptography@c2.net mail archive
Re: building a true RNG (was: Quantum Computing ...)
daemon@ATHENA.MIT.EDU (John S. Denker)
Tue Jul 23 14:10:26 2002
Date: Tue, 23 Jul 2002 10:03:40 -0400
From: "John S. Denker" <jsd@monmouth.com>
To: Derek Atkins <derek@ihtfp.com>
Cc: David Honig <dahonig@cox.net>, amir@herzberg.name,
"'Hannes R. Boehm'" <hannes@boehm.org>,
'Ian Hill' <Ian@Protonic.com>, cryptography@wasabisystems.com
Derek Atkins wrote:
>
> > OK, we have DES as an example of a whitener.
> > -- Can somebody give me an example of a "simple hash"
> > that performs "irreversible compression" of the required
> > kind?
>
> I can give you a number of examples: MD5, SHA-1, ....
Sorry, no, that doesn't answer the question.
-- I already use SHA-1.
-- It is considered a strong cryptologic hash that doesn't
need whitening.
-- I am told (but don't understand) that there might exist
a weaker hash that somehow does require whitening. This
is the point of the conversation. Please address this
point if you can.
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