Date: Fri, 27 Jul 2012 02:51:59 +0400 From: Alexander Cherepanov <cherepan@...me.ru> To: john-dev@...ts.openwall.com Subject: Re: mscash2 / hmac-md5 ambiguity On 2012-07-26 02:39, Frank Dittrich wrote: > On 07/26/2012 12:17 AM, Alexander Cherepanov wrote: >> On 2012-07-24 01:36, Alexander Cherepanov wrote: >>> For now I see the following: >>> >>> canonical is accepted as >>> >> BTW which formats are for the same type of hashes? For example, nt and >> nt2 are for the same hashes. But what about raw-md5 and dynamic_0? >> phpass and dynamic_17? etc. > > You could check the test cases of the format's self test. > If these are the same formats, they usually also have the same self > tests (exception would be a test which would fail because one > implementation supports a smaller maximum password length. Thanks for an idea. > (For dynamic_10NN, the test cases are in the config file dynamic.conf.) > > BTW: Some formats which currently collide with other formats could get a > changed canonical representation. At least those which av an individual > conversion script or routine: > > $ ls -l *2john* Any canonical form which differs from a form ITW can theoretically be corrected. > These formats could still support the old format. But the sequence of > format registration might need to be changed in case they grab hashes > which are the canonical form of another format. > > But that is certainly stuff to be checked after the contest. Sure. -- Alexander Cherepanov
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