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KoreK · 10-08-2004

chopper is posted in the aircrack thread: (Aircrack)Yet another WEP cracking tool for Linux
Anyway it's also been implemented in aircrack and weplab. Devine corrected at least one bug, and his tool, aircrack, uses (from what I read) a more stable version:
(Aircrack)Yet another WEP cracking tool for Linux
I posted a simple demo (just a few examples) in a mac thread as well: Need security pointers
The A_s13, A_w13_2 are attack names in chopper. There are 17 of them. The number of attacks is not that important, since the number of FMS-vulnerable IVs grows as the attack progresses. The problem is to balance the search for the key so that false positives are corrected. Results for chopper are
99% success for 256k random IV
over 75% success for 128k random IV
When IV's are distributed in a increasing little endian manner, chopper gets stuck on false positives and fails.
I'll have another look at "class 3" ivs. Your notations are quite hard to follow.

10-08-2004	#28 (permalink)
KoreK Banned in DC Join Date: Jul 2004 Posts: 102	chopper is posted in the aircrack thread: (Aircrack)Yet another WEP cracking tool for Linux Anyway it's also been implemented in aircrack and weplab. Devine corrected at least one bug, and his tool, aircrack, uses (from what I read) a more stable version: (Aircrack)Yet another WEP cracking tool for Linux I posted a simple demo (just a few examples) in a mac thread as well: Need security pointers The A_s13, A_w13_2 are attack names in chopper. There are 17 of them. The number of attacks is not that important, since the number of FMS-vulnerable IVs grows as the attack progresses. The problem is to balance the search for the key so that false positives are corrected. Results for chopper are 99% success for 256k random IV over 75% success for 128k random IV When IV's are distributed in a increasing little endian manner, chopper gets stuck on false positives and fails. I'll have another look at "class 3" ivs. Your notations are quite hard to follow. Last edited by KoreK : 10-08-2004 at 05:28 PM.