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Date: Tue, 13 Sep 2011 10:16:48 -0500
From: "jfoug" <>
To: <>
Subject: RE: Speed of jtr on your machine?


Shouldn't linux-x86-64 build with sse-intrinsic code?  It appears (from the
[gen] signature), that this is building a 'generic' build of john (for the


>From: Bugtrace []
> # ./john | grep 'ver:'
>John the Ripper password cracker, ver: 1.7.8-jumbo-5 [linux-x86-64]
> # ./john --format=raw-md5 --test
>Benchmarking: Raw MD5 [gen]... Using raw-md5 mode, by linking to
>md5_gen(0) functions DONE
>Raw:	5898K c/s real, 5957K c/s virtual
> # ./john --format=phpass-md5 --test
>Benchmarking: PHPass MD5 [phpass-md5]... Using phpass mode, by linking
>to md5_gen(17) functions DONE
>Raw:	3552 c/s real, 3552 c/s virtual
>It looks like not as fast as jtr 1.7.6_jumbo_12 x86 with sse2 .
> $ ./john | grep version
>John the Ripper password cracker, version 1.7.6-jumbo-12
> $ ./john --format=raw-md5 --test
>Benchmarking: Raw MD5 SSE2 [raw-md5 SSE2 16x4]... DONE
>Raw:	9668K c/s real, 9668K c/s virtual
> $ ./john --format=phpass-md5 --test
>Benchmarking: PHPass MD5 SSE2 [phpass-MD5 SSE2]... Using phpass mode,
>by linking to md5_gen(17) functions DONE
>Many salts:	6144 c/s real, 6144 c/s virtual
>Only one salt:	6083 c/s real, 6144 c/s virtual

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