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Date: Sun, 22 Apr 2012 12:21:04 +0200
From: Frank Dittrich <frank_dittrich@...mail.com>
To: john-users@...ts.openwall.com
Subject: Re: Extract the cracked pass from John.pot

On 04/22/2012 11:44 AM, Solar Designer wrote:
> On Sat, Apr 21, 2012 at 08:07:34PM +0000, donovan wrote:
>> In fact, many hashes, MD5, SHA1 or whatever hashes contain same pass exist
>> allready in john.pot, but if you run an attempt on an MD5 list & if john
>> identify the corresponding hashe no prob', is the goal of "John", but if the
>> plain pass exist in john.pot but associated to an DES Line, John dosen't give
>> you the plain of the MD5 pass, logical, cause associated to the MD5 , But exist
>> allready in the "pot"
>>
>> Example : 
>>
>> HERE the DES for the pass "frank"
>>
>> lUwjiXB2Wq/t6

Actually, this is not "the" DES hash for password "frank", it is one out
of 4096 possible DES hashes for password "frank".

For saltless hash formats, there exists just one hash pr password.
For salted hash formats, there can be an arbitrary number of different
hashes for the same password, depending on the salt size.

>> If i run an attempt on an MD5 list contain an Hashe corresponding to the pass :
>> frank, John don't find it , cause associated to DES.
> 
> Are you trying to say that if you run a wordlist with the word "frank"
> against a certain password file when you already have "frank" for another
> hash in your john.pot, then "frank" passwords in your new password file
> won't be cracked?  If so, that's not true.  They will be cracked just fine.

I think he was wondering why john wouldn't report an MD5 hash as cracked
if there isn't already a line with this MD5 hash in john.pot, but other
lines in john.pot (for the same hash format, but different hashes, or
even for different hash formats) exist for the password "frank".

Frank

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