AIRCRACK-NG(1) AIRCRACK-NG(1)
NAME
aircrack-ng is a 802.11 WEP / WPA-PSK key cracker.
SYNOPSIS
aircrack-ng [options] <.cap / .ivs file(s)>
DESCRIPTION
aircrack-ng is a 802.11 WEP / WPA-PSK key cracker. It implements the
so-called Fluhrer - Mantin - Shamir (FMS) attack, along with some new
attacks by a talented hacker named KoreK. When enough encrypted packets
have been gathered, aircrack-ng can almost instantly recover the WEP
key.
OPTIONS
Common options:
-a <amode>
Force the attack mode, 1 or wep for WEP and 2 or wpa for WPA-
PSK.
-e <essid>
Select the target network based on the ESSID. This option is
also required for WPA cracking if the SSID is cloacked.
-b <bssid>
Select the target network based on the access point's MAC
address.
-p <nbcpu>
Set this option to the number of CPUs to use (only available on
SMP systems). By default, it uses all available CPUs
-q If set, no status information is displayed.
Static WEP cracking options:
-c Search alpha-numeric characters only.
-t Search binary coded decimal characters only.
-h Search the numeric key for Fritz!BOX
-d <mask>
Specify mask of the key. For example: A1:XX:CF
-m <maddr>
Only keep the IVs coming from packets that match this MAC
address. Alternatively, use -m ff:ff:ff:ff:ff:ff to use all and
every IVs, regardless of the network (this disables ESSID and
BSSID filtering).
-n <nbits>
Specify the length of the key: 64 for 40-bit WEP, 128 for
104-bit WEP, etc., until 512 bits of length. The default value
is 128.
-i <index>
Only keep the IVs that have this key index (1 to 4). The default
behaviour is to ignore the key index in the packet, and use the
IV regardless.
-f <fudge>
By default, this parameter is set to 2. Use a higher value to
increase the bruteforce level: cracking will take more time, but
with a higher likelihood of success.
-k <korek>
There are 17 KoreK attacks. Sometimes one attack creates a huge
false positive that prevents the key from being found, even with
lots of IVs. Try -k 1, -k 2, ... -k 17 to disable each attack
selectively.
-x or -x0
Disable last keybytes bruteforce (not advised).
-x1 Enable last keybyte bruteforcing (default)
-x2 Enable last two keybytes bruteforcing.
-X Disable bruteforce multithreading (SMP only).
-s Shows ASCII version of the key at the right of the screen
-y This is an experimental single brute-force attack which should
only be used when the standard attack mode fails with more than
one million IVs.
WPA-PSK cracking options:
-w <words>
Path to a dictionary file for wpa cracking. Specify "-" to use
stdin.
AUTHOR
This manual page was written by Adam Cecile <gandalf@le-vert.net> for
the Debian system (but may be used by others). Permission is granted
to copy, distribute and/or modify this document under the terms of the
GNU General Public License, Version 2 or any later version published by
the Free Software Foundation On Debian systems, the complete text of
the GNU General Public License can be found in /usr/share/common-
licenses/GPL.
SEE ALSO
airmon-ng(1)
airdecap-ng(1)
aireplay-ng(1)
airodump-ng(1)
packetforge-ng(1)
ivstools(1)
kstats(1)
Version 0.6.2 September 2006 AIRCRACK-NG(1)
