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Date: Tue, 2 Oct 2007 20:50:45 +0100
From: "Larry Bonner" <>
Subject: Re: potential MySQL optimization

yes, i saw some code you describe on masmforum which uses MMX, it was
extremely fast in tests..The method you describe is something like 6x
faster using 32-bit code than normal hashing, and a staggering 300x
faster using CORE 2 SSE4 optimised assembly!!

i've seen the 32-bit code implemented in a commercial password cracker
i won't mention.
now a days, the SHA1 hash is more popular though, but still an
interesting attack you describe which could be applied to other hash


On 10/1/07, ByteRage <> wrote:
> Given the MySQL password hash function:

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