Re: dwepcrack

Using the wepcrack software on sourceforge (I forget who the author/s 
are) you can generate a series of "weak ivs" than can then be used to 
test the cracking software against. I often found the software could not 
accurately crack a number of keys I gave it. It may be some keys require 
more weak ivs than the authors predict. I don't know much about the 
performance of dwepcrack though.

Robbo

On Wednesday, June 26, 2002, at 03:27 PM, h1kari wrote:

> Doug,
>
> Make sure you're collecting enough weak iv's. You should have at least 
> 20
> for all of the key bytes in order to crack it in a timely manner. If you
> have enough, try running with different fudge (-f <num>) values starting
> from 1, this specifies how far dwepcrack will search for the key in the
> probabilities tables. If you aren't collecting enough weak ivs, I'm 
> guessing
> that one of your wireless cards is running a driver that blocks out 
> some of
> the weak ivs or does the funky iv repeating stuff. If you're still 
> having
> problems, post more info to the list so we can try and figure out what's
> going on.
>
> -h1kari
>
>
> On 6/26/02 7:40 AM, "Doug Marzano" <[email protected]> wrote:
>
>> I have captured over 2 million packets with dwepdump. The access point 
>> and
>> mobile UNIT are both setup for WEP with 128 key encryption.
>>
>> I ran it through dwepcrack... and did not recover the key
>>
>> what options should I set on dwepdump and dwepcrack.
>>
>>
>> -doug
>>
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>
> --
> David Hulton <[email protected]>
> Senior Researcher, Dachb0den Labs
> http://www.dachb0den.com
>
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