Re: SHA-1 Variants
From: Anton Stiglic (stiglic_at_cs.mcgill.ca)
Date: 06/03/04
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Date: Thu, 3 Jun 2004 15:20:10 -0400
"Mok-Kong Shen" <mok-kong.shen@t-online.de> wrote in message
news:c9nisv$6lf$00$1@news.t-online.com...
> A related question: Could someone please give a few good
> references that formally deal with the security of SHA? Thanks.
>
> M. K. Shen
For starters, you can take a look at
Analysis of SHA-1 in Encryption Mode,
Helena Handschuh, Lars R. Knudsen, Matthew J. Robshaw
http://www.gemplus.com/smart/r_d/publications/pdf/HKR01sha.pdf
and
Cryptanalysis of Block Ciphers Based on SHA-1 and MD5,
Markku-Juhani O. Saarinen
www.tcs.hut.fi/~mjos/doc/shaan.ps
which look at the SHA-1 compression function as a block cipher.
There have also been results on MD4 and MD5, some of which
can clarify things about the design of SHA-1. Also look at the
attack on SHA-0.
Basically, the advantage of using SHA-1 is that it has been around
for a while and hasn't gotten broken yet.
--Anton
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