Re: building 512 bit hash functions from a block cipher
From: Mok-Kong Shen (mok-kong.shen_at_t-online.de)
Date: 02/29/04
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Date: Sun, 29 Feb 2004 23:17:34 +0100
Tom Naxos wrote:
[snip]
> Does anyone know a way to obtain a secure 512 bit hash function from aes256?
Just a random thought: Rijndael (not the specific form AES)
allows block length of 256. One could also use a 128-bit
block size cipher to build a 256-bit block size cipher,
using e.g. the Feistel construct, I suppose. Wouldn't that
possibly help somehow?
M. K. Shen
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