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Date: Fri, 4 Nov 2016 16:13:22 +0100
From: matlink <matlink@...link.fr>
To: john-users@...ts.openwall.com
Subject: Re: John does not fork as many times as I want
Le 04/11/2016 à 16:06, Solar Designer a écrit :
> On Fri, Nov 04, 2016 at 04:00:30PM +0100, matlink wrote:
>> Le 04/11/2016 ? 15:56, Solar Designer a ?crit :
>>> Sure, "--restore" continues from where the session was interrupted, not
>>> re-testing the previously tested candidate passwords.
>>>
>>> Without that option, you have JtR re-test the same candidate passwords.
>>>
>>> The pot file eliminates previously cracked hashes in either case.
>> Well, I was not using the --restore option, but always the --session
>> with --pot and in fact, when john starts it says "Remaining 25185227
>> password hashes with no different salts" which is less than when
>> previously ran. I guess --restore is equal to running john with the same
>> parameters as before. That was my question.
> Your guess is wrong. "--restore" is more than that, and it is usually
> much more efficient than starting over with the same parameters.
>
> However, since you were getting forked processes not started or killed,
> you did in fact have to start over not to miss any weak passwords.
Alright. Is starting over meaning re-testing the whole potfile against
the hashed pwd? The said potfile is about 670MB, then is not using
--restore having a huge impact about performances? What if that file
were much more huge, like 50GB?
>
> "Remaining 25185227 password hashes" is low enough that you should be
> able to run 40 processes now, if you skip the "single crack" mode as I
> suggested.
>
> Alexander
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