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April 11th, 2005, 12:47 PM
#1
Member
WEP Canundrum
Hi all,
Just a query I have which has been bugging me for a while now. When people talk about cracking WEP keys with a cracking tool such as Airsnort which, needs a large number of packets. if the network is only small and doesn't generate many packets the crack could take months, Iv heard people say well, you just generate traffic on that network, well surely this is not possible as the network is encrypted and you cant see any individual machine so how is this possible?
Thanx for clearing this up
Craig Dunn
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April 11th, 2005, 01:41 PM
#2
Member
When googling "generating traffic for airsnort' the first link that pops up is
http://www.davewilson.cc/Wireless/Airsnort.html
Enjoy.
Tachyon
|-----|Alcohol is my anti-drug |-----|
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April 11th, 2005, 03:06 PM
#3
Here is a good white paper on the weaknesses of WEP. It has the information you are looking for.
http://www.isoc.org/isoc/conferences...ers/stubbl.pdf
Work... Some days it's just not worth chewing through the restraints...
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April 11th, 2005, 03:17 PM
#4
Re: WEP Canundrum
Originally posted here by phobophiliac
Hi all,
Just a query I have which has been bugging me for a while now. When people talk about cracking WEP keys with a cracking tool such as Airsnort which, needs a large number of packets. if the network is only small and doesn't generate many packets the crack could take months, Iv heard people say well, you just generate traffic on that network, well surely this is not possible as the network is encrypted and you cant see any individual machine so how is this possible?
Thanx for clearing this up
Craig Dunn
When they say "generate traffic", then you have to either already be on the lan or start a lot of communication with a server behind it. It is true that a large number of encrypted packets are needed (5-10 million) to get the "interesting" packets with weak IVs to crack wep when using a first-generation tool such as airsnort. However, some new tools require far less than that, some as few as 3 or 400,000 packets. Take a look at http://www.securityfocus.com/infocus/1814 .
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April 11th, 2005, 04:20 PM
#5
These techniques have been covered in many places.
My favorite articles on this are available at www.securityfocus.com
Look for "WEP Dead Again Part 1" and "WEP Dead Again Part 2".
Just saw that KeyserSoze has posted a link to Part 1.
Part 2 is located @ http://www.securityfocus.com/infocus/1824
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