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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