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Subject: Re: AES as a hash function?
From: Paulo S. L. M. Barreto (paulo.barretoterra.com.br)
Date: Mon Oct 02 2000 - 18:51:11 CDT

On Mon, 02 Oct 2000, Jim Gillogly wrote:
> Bram Cohen wrote:
> >
> > The announcement didn't mention Rijndael's applicability as a hash
> > function. I thing I remember mention in earlier AES documents that it
>
> This is covered in the materials submitted by the Rijndael team,
> in the Algorithm Specification at
> http://csrc.nist.gov/encryption/aes/round2/r2algs.htm
> in section 13.
>
> > UHASH is also strictly 128-bit, it would be nice for there to be 256-bit,
> > 384-bit, and 512-bit versions as well, to keep parity with the AES.
>
> I expect SHA variants of these lengths to be available before long
> from NSA via NIST.

The 256-bit version of SHA-2 is said to be ready for a few months. I don't know
about the other two sizes, but it is likely that they are (almost) ready as
well.

Paulo Barreto.