wep crack without weak IV's or so i thought

TheSovereign · 06-07-2003

ok i found a linux port of the dwepcrack
which claims it can brute force the key
i recorded a dump andused dwepcrack on it and it said no valid data packets found

does this mean i still need weak packets to crack this?

peekitty · 06-07-2003

You need actual data packets in your dumpfile, beacon and other LLC stuff doesn't count.

A bruteforce attack doesn't rely on weak IVs.

TheSovereign · 06-07-2003

I did have data duh!
I was transferring files.
Please don’t try to explain things like brute force it makes you appear to not understand why I posted this.

dwepcrack says its an optimized brute force utilizing some weak iv's to determine key area.

So in that case it does need some weak keys

It has a second option that allow search of total key space which is what I want to use and it gives me that error
Please Google this stuff before u answer.
I’m looking for an answer from someone who is actually knowledgeable in bsdairtools

besides i found the answer
from kismet message postPosted by: dragorn
Subject: dwepcrack compatible with weak packet dump?
Date: 01:55:51 17/02/2003

Kismet writes standard 802.11-linktype dumps. The weak packet log is a trimmed dump with 1 beacon per network and weak data packets.

I have no idea what packet format dwepcrack expects, obviously it's not reading the standard packet format.

-m

> Has anyone tried this before. I have been attempting to crack a weak packet dump consisting of around 2000. I feed in the file with the appropriate options and it complains to me about not finding a valid data packet...hmmm

peekitty · 06-08-2003

Quote:

Originally posted by TheSovereign
I did have data duh!
I was transferring files.
Please don’t try to explain things like brute force it makes you appear to not understand why I posted this.

Obviously I didn't understand why you posted it, please try to write more coherently in the future.

Quote:

Please Google this stuff before u answer.
I’m looking for an answer from someone who is actually knowledgeable in bsdairtools

besides i found the answer
from kismet message postPosted by: dragorn
Subject: dwepcrack compatible with weak packet dump?
Date: 01:55:51 17/02/2003

Kismet writes standard 802.11-linktype dumps. The weak packet log is a trimmed dump with 1 beacon per network and weak data packets.

I have no idea what packet format dwepcrack expects, obviously it's not reading the standard packet format.

That's almost an answer. Read the info from dachb0den if you want to understand why it didn't work.

06-07-2003	#1 (permalink)
TheSovereign Master of the universe Join Date: Jun 2002 Location: chicago Posts: 658	wep crack without weak IV's or so i thought ok i found a linux port of the dwepcrack which claims it can brute force the key i recorded a dump andused dwepcrack on it and it said no valid data packets found does this mean i still need weak packets to crack this? __________________ SO SAYS TheSovereign

06-07-2003	#3 (permalink)
TheSovereign Master of the universe Join Date: Jun 2002 Location: chicago Posts: 658	I did have data duh! I was transferring files. Please don’t try to explain things like brute force it makes you appear to not understand why I posted this. dwepcrack says its an optimized brute force utilizing some weak iv's to determine key area. So in that case it does need some weak keys It has a second option that allow search of total key space which is what I want to use and it gives me that error Please Google this stuff before u answer. I’m looking for an answer from someone who is actually knowledgeable in bsdairtools besides i found the answer from kismet message postPosted by: dragorn Subject: dwepcrack compatible with weak packet dump? Date: 01:55:51 17/02/2003 Kismet writes standard 802.11-linktype dumps. The weak packet log is a trimmed dump with 1 beacon per network and weak data packets. I have no idea what packet format dwepcrack expects, obviously it's not reading the standard packet format. -m > Has anyone tried this before. I have been attempting to crack a weak packet dump consisting of around 2000. I feed in the file with the appropriate options and it complains to me about not finding a valid data packet...hmmm __________________ SO SAYS TheSovereign Last edited by TheSovereign : 06-07-2003 at 11:17 PM.

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06-07-2003	#2 (permalink)
peekitty Macaca Join Date: Sep 2002 Location: S. Florida Posts: 1,056	You need actual data packets in your dumpfile, beacon and other LLC stuff doesn't count. A bruteforce attack doesn't rely on weak IVs.