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Date: Thu, 12 Apr 2012 11:50:42 -0600
From: Stephen John Smoogen <>
Subject: Re: JTR against 135 millions MD5 hashes

On 12 April 2012 11:40, <> wrote:
> Hi
>  I'm trying my own text dictionary (6 gigas) against 135 millions (4,6 gigas) hash file.
>  After 20 minutes, JTR begin to crack MD5, but it very very slow, in fact JTR seems frozen, I can hear the hard drive running and running.
>  JTR display also -> "excessive partial hash collisions detected"
>  If I try the same process with only 200 megas hashes files (4.6 splitted in 200 megas parts), this time JTR crack tons of MD5 after 2 or 3 minutes.
>  Is JTR able to crack 1 file with 135 millions MD5 hashes ?

Well are those unique hashes? How much memory does your system have?
What other information is being stored in the password string (and are
we talking about raw md5 (eg $dynamic_0$ or freebsd style $1$. I am
guessing raw). To me it sounds like you are somehow hitting swap or
some sort of architecture paging limits.

>  Thanks,
>  W/A/

Stephen J Smoogen.
"The core skill of innovators is error recovery, not failure avoidance."
Randy Nelson, President of Pixar University.
"Years ago my mother used to say to me,... Elwood, you must be oh
so smart or oh so pleasant. Well, for years I was smart. I
recommend pleasant. You may quote me."  —James Stewart as Elwood P. Dowd

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