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Message-ID: <c26b183cda2a981c1624748f6091f14b@smtp.hushmail.com>
Date: Wed, 27 Jun 2012 12:04:35 +0200
From: magnum <john.magnum@...hmail.com>
To: john-dev@...ts.openwall.com
Subject: Re: mschap-v2 conversion
On 2012-06-27 11:54, deepika dutta wrote:
> But md4 calculation is being done in mschapv2_crypt_all() which
> happens in both single and many salts cases (i debugged and
> confirmed). So how is keys_prepared flag playing any role here in
> avoiding this computation? This means that apart from above three
> lines of code, same thing is happening in single salt and many salt
> and thus the difference in benchmark result for both should not be
> very high.
It's avoided for all salts but the first. It's like this:
set_key()
set_key()
set_key()
set_key()
set_key()
set_salt()
crypt_all() (keys will be prepared, in parallel if OMP)
set_salt()
crypt_all() (keys are already prepared)
set_salt()
crypt_all() (keys are already prepared)
...
magnum
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