Re: A basic question about hashing
From: Joe Peschel (jpeschel_at_no.spam.org)
Date: Wed, 08 Sep 2004 08:09:01 -0000
Bryan Olson <email@example.com> wrote in
> Mok-Kong Shen wrote:
> > Certainly, what I said in the original post is only a rough
> > concept, hence not being concrete. However, I think that
> > appropriate polynomials of degrees over 3 may be quite tough
> > to invert for arguments of, say, 128 bits. Now, if one has,
> > say, 4 blocks from such a function and apply even a very
> > simple combination of them, namely a sum mod 2^128, I don't
> > yet see how the attacker is going to proceed.
> In order to assess the significance of your "I don't yet see",
> we would need to know hard you have looked. Can you describe
> what study you did before announcing this?
Study? I do not yet capture the...
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