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Message-ID: <CAD4iTS3JqekHo3avhpLWmbr-hjJmO-S7oQ8mjE0r6wGUigS7Ug@mail.gmail.com>
Date: Tue, 28 Jul 2015 18:53:25 -0500
From: Shia Aaron Lloyd Fisher <shia0fisher@...il.com>
To: "john-users@...ts.openwall.com" <john-users@...ts.openwall.com>
Subject: Re: Why does john display some cracked passwords twice?
Looks like a Space....
On Tuesday, July 28, 2015, magnum <john.magnum@...hmail.com> wrote:
> On 2015-07-28 18:49, Marek Wrzosek wrote:
>
>> W dniu 28.07.2015 o 18:40, Marek Wrzosek pisze:
>>
>>> Here is some examples:
>>> br4v0br4v0 (?)
>>> br4v0br4v0 (?)
>>>
>>
>
>>> This happens very frequently with different modes (incremental,
>>> wordlist, prince, markov, ...) while cracking raw-md5 with --fork
>>> option. Sometimes it happens even three times:
>>> Emmanuelf12 (?)
>>> Teddyg17 (?)
>>> Teddyg17 (?)
>>>
>>
> PS. Apparently they are cracked multiple times, because this occurs in a
>> .pot file too.
>> $dynamic_0$077a62e15d63c5a10ec58866c2b5202e:passopasso83
>> $dynamic_0$077a62e15d63c5a10ec58866c2b5202e:passopasso83
>>
>> Maybe this would be helpful too:
>> $ ./john --list=build-info
>> Version: 1.8.0.6-jumbo-1-521-gb58aa25
>> (...)
>>
>
> You need to state what command you ran. It could be a bug (should be
> fairly new bug if so), but it's likely due to eg. running -fork in some
> non-efficient way.
>
> For example, if you ran wordlist + rules with fork, no two processes will
> apply the same rule to the same word. But if one process read the word
> "teddyg" and used a rule that applied "17", and another process read the
> word "teddy" and a rule that applied "g17", they would both crack the same
> "teddyg17" hash. If they do this within minutes the "pot sync" feature will
> not have a chance to mitigate it. OTOH it can be ignored (and it was much
> much worse before pot sync) as long as we know this is the actual issue
> here.
>
> magnum
>
>
--
Shia A.L. Fisher
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Mobile: (608)347-7100
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