[136279] in cryptography@c2.net mail archive
Re: combining entropy
daemon@ATHENA.MIT.EDU (John Denker)
Mon Oct 27 16:51:49 2008
Date: Sat, 25 Oct 2008 13:53:55 -0700
From: John Denker <jsd@av8n.com>
To: IanG <iang@systemics.com>, Cryptography <cryptography@metzdowd.com>
In-Reply-To: <490305A0.8050104@systemics.com>
Alas on 10/25/2008 01:40 PM, I wrote:
> To summarize: In the special sub-case where M=1, XOR
> is as good as it gets. In all other cases I can think
> of, the hash approach is much better.
I should have said that in the special sub-case where
the member word has entropy density XX=100% _or_ in
the special sub-case where M=1, XOR is as good as it
gets. In all other cases I can think of, the hash
approach is much better.
(I excluded the XX=100% case earlier in the note, but
I should have included it in the summary. Sorry.)
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