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Old 07-06-2006, 11:41 AM   #1
Registered: Jan 2005
Location: Pittsburgh
Distribution: Ubuntu
Posts: 378

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anyone play with aircrack before? can't crack my own WEP

Hey guys,

Has anyone here played with aircrack before? I've been trying to crack my own 128-bit WEP key but can't seem to do it.

I've seen several docs say that cracking the key should be gaurenteed with 2 million IV's, but is crackable with as little as 200,000

I have 3 computers on my wireless network, I set 1 into monitor mode, and I generate ping packets with a .0001 interval between the other two computers. This generates about 5 million packets in a couple minutes. The computer set in monitor mode captures the data with tcpdump in pcap format with full packet payload.

I then try to crack my WEP key on my 3.25GHz machine with:
aircrack -a 1 -e myessid -p 2 -f 2 data
It says I got 2699788 IVs when aircrack starts

it runs and runs but never seems to find the key... i thought that with so many IV's it would crack it in seconds.

Anyone else ever play with it?

Old 07-06-2006, 12:23 PM   #2
Registered: Aug 2004
Location: Windsor Ontario
Distribution: Ubuntu, Debian, Redhat
Posts: 44

Rep: Reputation: 15
I'm also curious about this, I've tried it with my own WEP but didn't work for me, figured I was doing something wrong, but I wanted to check how secure the WEP really was. Hope someone knows this.. would help me out as well
Old 07-06-2006, 12:29 PM   #3
Registered: Jan 2005
Location: Pittsburgh
Distribution: Ubuntu
Posts: 378

Original Poster
Rep: Reputation: 30
i've seen 2 articles which have cracked 128-bit WEP keys in under 2 minutes successfully:
Old 07-10-2006, 04:10 PM   #4
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Registered: Feb 2002
Location: Szczecin, Poland
Distribution: Gentoo, Debian
Posts: 2,458

Rep: Reputation: 48
Have you tried their own forums yet?

This subject falls into the "cracking" category and is against LQ rules, so we don't want any further discussion here, thanks.


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