Date: Thu, 9 Aug 2012 15:50:50 -0500 From: "jfoug" <jfoug@....net> To: <john-dev@...ts.openwall.com> Subject: RE: bleeding-jumbo and contest edition fail to recognize cracked dynamic_21 hashes Here is the patch, but I fear, this one is not going to be pretty, trying to merge it. This was made against current j7-fixes. Jim. >-----Original Message----- >From: magnum [mailto:john.magnum@...hmail.com] >Sent: Thursday, August 09, 2012 3:28 PM >To: john-dev@...ts.openwall.com >Subject: Re: [john-dev] bleeding-jumbo and contest edition fail to >recognize cracked dynamic_21 hashes > >Just do a patch for -fixes. I'm pretty sure git will sort it out. If >not, I'll give you a holler. > >magnum > > > >On 2012-08-09 22:23, jfoug wrote: >> I have found the issue here (I hope). Recently added, was writing >> hashes out in a salt-safe manner, within dynamic. This was done to >> work around some known issues, such as \n : $ NULL, or other naughty >> characters being contained within the salt field, causing JtR's string >> handling and field splitting functions to fail. >> >> Well, there were 2 places within loader which required changes. One >> was in >> load_pot_line() the other (which was not done), as in show_pot_line(). >> I am not sure why the 2 functions, but I had only added code to the >> load_pot_line. >> >> This also affects the j7 release candidate I have made some changes >> here also. >> >> I may need to talk to magnum offline a little, to figure out just how >> to push this out. It may be best if I make a patch for j7-rc, for >> jumbo, and for bleeding. Unfortunately, I think that all of these may >> have some collision issues, especially within the loader code, which >> is different between the versions. >> >> Jim. >> >>> From: jfoug [mailto:jfoug@....net] >>> >>> This was the $HEX$ fix (un-hex) which people reverted out, because it >>> was causing some problem with -show=left, or something like that. I >>> have not gotten back on this. >>> >>> Jim. >>> >>>> From: Frank Dittrich [mailto:frank_dittrich@...mail.com] >>>> >>>> I can reproduce this with 220.127.116.11-c5 and with bleeding-jumbo, but >>>> not with magnum-jumbo or john-1.7.9-jumbo-6-fixes. >>>> >>>> When I just run >>>> >>>> ./john hashes-4.dynamic_21.txt >>>> >>>> john starts cracking and soon cracks the first hash for ed.fox >>>> (password: edFox) in single mode. >>>> >>>> When I interrupt, and repeat the same command, john should find at >>>> least the last hash being cracked, but it doesn't. >>>> john --show also shows 0 cracked. >>>> >>>> But the hash is correctly stored in john.pot. >>>> After repeating this experiment several times, I have exactly the >>>> same line in john.pot for each new test. >> >> >> Download attachment "j7-fixes-dynamic-hex-fixes.patch" of type "application/octet-stream" (6647 bytes)
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