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: 220.127.116.11-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 Home: (608)-241-3374 Mobile: (608)347-7100 *"Semper Fidelis: Always Faithful"* *CONFIDENTIALITY NOTICE*: This electronic transmission (including any files attached hereto) contains information that is legally privileged, confidential, and exempt from disclosure. It is intended for use only by the individual or entity named above. If you are not the intended recipient or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any disclosure, dissemination, copying, distribution, or the taking of any action in reliance on the contents of this confidential information is strictly prohibited. If you have received this communication in error, please destroy it, remove it from your computer and/or network, and immediately notify me by email. Thank you. Receipt by anyone other than the named recipient(s) is not a waiver of any attorney-client, work product or other applicable privilege, protection or doctrine.
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