Not accurate for less than 8 chars?

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Alluz
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Not accurate for less than 8 chars?

Post by Alluz » Tue Jan 13, 2009 10:30 pm

Hi.
I am testing BarsWF and I found something strange. I've created a hash for "Alluz" and I tried to crack it, but the result is not accurate.

Hash for alluz: CDACDFC942EF182FA0137F845774AA2A
Cracked with BarsWF: Key is: alluzMøv

Hash for four: 8CBAD96ACED40B3838DD9F07F6EF5772
Cracked with BarsWF: fourÚMøv

Hash for cinco: 64E38E70EFB84F926568D0522A105C33
Cracked: cincoMøv

Hash for sixsix: 54D0B65DBCE1BCAE13E1329438D021BF
Cracked: sixsixøv

Hash for 111111: 96E79218965EB72C92A549DD5A330112
Cracked: 111111øv

But, is strange, when i try to crack a hash of 8 chars, there is not problem.
Hash for 11111111: 1BBD886460827015E5D605ED44252251


PD. I'm using BarsWF_CUDA_x32.exe with Dell xps 1530, core 2 duo 2.2ghz, 4gb ram, gforce 8600m gt 256mb.
PD2. I've tested EDPR, Cain, John, and many others crackers. I'm doing benchmark.

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BarsMonster
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Re: Not accurate for less than 8 chars?

Post by BarsMonster » Wed Jan 14, 2009 12:23 am

That is a known problem that it shows some extra random symbols after found password, this is already fixed and will be available in 0.9

brunolap
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Re: Not accurate for less than 8 chars?

Post by brunolap » Mon Jan 19, 2009 7:42 pm

talking about key length... does barswf has any limit regarding the length of the key?? can it be bigger than 56 or 64 bytes? does it have a limit?

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BarsMonster
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Re: Not accurate for less than 8 chars?

Post by BarsMonster » Mon Jan 19, 2009 8:19 pm

Yes, and it is far closer than you can imagine ;-)
15 chars max :-) That is ok for non-salted hashes, but for salted hashes there would be separate core.

brunolap
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Re: Not accurate for less than 8 chars?

Post by brunolap » Tue Jan 20, 2009 6:34 pm

you're right..
and i was looking at the md5 algorithm and it can be simplified a lot if the input is limited to less than 56 characters but i think that it's not possible to simplify more assuming 15 instead of 56...am i right?

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BarsMonster
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Re: Not accurate for less than 8 chars?

Post by BarsMonster » Tue Jan 20, 2009 9:39 pm

brunolap wrote:you're right..
and i was looking at the md5 algorithm and it can be simplified a lot if the input is limited to less than 56 characters but i think that it's not possible to simplify more assuming 15 instead of 56...am i right?
It is possible, 15 is 1-2% faster than 56 for good optimized program, and 25-30% faster for bad optimized program :-)

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