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Date: Mon, 18 Jun 2012 13:44:43 -0500
From: "jfoug" <jfoug@....net>
To: <john-dev@...ts.openwall.com>
Subject: RE: Reduced binary size
>From: magnum [mailto:john.magnum@...hmail.com]
>> One other 'way' to do this, is to pass in the index to get_source().
>> This method 'may' allow us to rebuild, AFTER the crypt_all has been
>> run. There may be issues where this method is not ideal, and may not
>be 'good enough'
>> for many formats.
>
>Not sure what you mean.
If the index was sent (meaning we are calling get_source for the 17th
password), and this call comes after the crypt_all, then the format can use
the completed hash, to re-create the binary hash value.
This situation MAY end up being one where we cannot have both get_source()
and partial binary. NOTE the side effects and other bad stuff we ran into
with SHA1_LI format. It was partial. When I wrote get_source(), I DID
list certain assertions / requirements for it to be able to be used. The
SHA1_LI broke those requirements, and we were able to work around some of
it, but trying to do this in more of a wholesale manner (true partial
binaries), may be more than we can work around.
Jim.
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