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cam · 06-26-2003

Brute forcing WEP is different from the attacks Airsnort uses. The keysize is 40-bit for 64-bit WEP and 104 bit for 128 bit. So doing the math it is possible to brute force the 40-bit WEP key in a couple days, depending our powerful your machine is. 128-bit WEP is currently impossible to brute force by todays standards.

For brute forcing you could do it with only one captured encrypted packet, it would be good to have an extra few packets just to double check that you have correctly brute forced the key.

06-26-2003	#11 (permalink)
cam Registered Member Join Date: Aug 2002 Posts: 5	Brute forcing WEP is different from the attacks Airsnort uses. The keysize is 40-bit for 64-bit WEP and 104 bit for 128 bit. So doing the math it is possible to brute force the 40-bit WEP key in a couple days, depending our powerful your machine is. 128-bit WEP is currently impossible to brute force by todays standards. For brute forcing you could do it with only one captured encrypted packet, it would be good to have an extra few packets just to double check that you have correctly brute forced the key.