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Date: Sun, 14 Aug 2011 21:55:42 -0500
From: "JimF" <jfoug@....net>
To: <john-users@...ts.openwall.com>
Subject: Re: Re: md5(md5($p).$s) - VB
Format 6 and 7 are 'somewhat' the same. There are 2 stipulations put on
format 7. The first is that the salt MUST be 3 bytes long. This stipulation
is not part of format 6.
Format 6 does work with 3 byte salt, and will also work with longer salts.
I think the max is 25 byte salt (for length reasons). If you need a salt
longer than 25 bytes, then you will have to build a non-sse build of john.
Also, the other stipulation put on format 7, is that it REQUIRES using a
separator char other than the ':' character. Any format in md5_gen 'can'
use a separator other than ':'. To do that, you have to build the input
file properly, and then use the -fie= command line switch. However, format
7 is written in a way that you are forced to do that.
So, you can easily run all that you want, by using the format md5_gen(6).
If you do not have any salts with the ':' in them, then you are not 'forced'
to use the -fie switch.
Jim.
----- Original Message -----
From: "Donovan" <contact.newangels@...il.com>
To: <john-users@...ts.openwall.com>
Sent: Sunday, August 14, 2011 3:22 PM
Subject: [john-users] Re: md5(md5($p).$s) - VB
> magnum <rawsmooth@...> writes:
>
>>
>> $ cat donovan.txt
>> user md5_gen(7)33be23d72f2650dd0d049cf1e274fe24$M's
>>
>> $ ./john donovan.txt -fie=" "
>> using field sep char ' ' (0x20)
>> Loaded 1 password hash ( md5_gen(7): md5(md5($p).$s) (vBulletin) [SSE2
>> 16x4x2 (intr)])
>>
>> I just found this odd behaviour when testing: It claims I don't have the
>> format unless I give a field separator.
>>
>> $ ./john -test -fo:"md5_gen(7)"
>> Unknown ciphertext format name requested
>>
>> $ ./john -test -fo:"md5_gen(7)" -fie=" "
>> using field sep char ' ' (0x20)
>> Benchmarking: md5_gen(7): md5(md5($p).$s) (vBulletin) [SSE2 16x4x2
>> (intr)]... DONE
>>
>> magnum
>>
>
> Hello Magnum,
>
> Thanks a lot for your time & your reply...
>
> ok, understand now i don't put the field-separator ! my bad !
>
> so if i understand clearly i have to add an space in the = -fie" ".
>
> ok done...
>
> Beside that, can you confirm what about salts uper than 3
>
> like those's one by ex ;
>
> 280f432047839ec4934f0b8f2b691de0:<)k4/1voY.HTuq|Pin-Bt-o,1gx=0x
> dadcf9df167d6c7c4d353063a56d514d:jhFK|3$[yy9OAilB_ly"Ip9t:i,k<j
>
> Thanks again for your help & support,
>
> Regards,
>
> Donovan
>
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