From mboxrd@z Thu Jan  1 00:00:00 1970
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From: Boyd Roberts <boyd@strakt.com>
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To: 9fans@cse.psu.edu
Subject: Re: [9fans] OS install floppy hangs during boot on Bochs 1.4.1
References: <796d99903d4e03170c55ebb950d5e781@plan9.bell-labs.com> <20021125225654.B2266@tibia.amotlpaa.bogus>
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Date: Tue, 26 Nov 2002 11:25:46 +0100
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Steven Taschuk wrote:

>For my next trick... I wonder whether the MD5 algorithm is such
>that the hash for the concatenation of two blocks of bits can be
>determined quickly from the hashes for the two blocks.
>
I would say that the treatment of the last block would negate this;
it is 'padded' and then hashed.  I suppose you could keep the hashes
of the penultimate blocks and then compute the last blocks' hashes,
but this smacks of a lot of chicanery for not much gain.