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From: Paul Rubin <no.email@nospam.invalid>
Newsgroups: comp.lang.forth
Subject: Re: MD4 in Forth?
Date: Tue, 21 Mar 2017 20:13:02 -0700
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Howerd <howerdo@yahoo.co.uk> writes:
> Just 80x86 32 bit. I didn't know that MD4 and SHA-1 are related...

They resemble each other.  The details are different in multiple ways
but the high-level structures are somewhat similar.  So code for one of
them would be a reasonable starting point for the other.