http://airsnort.sourceforge.net/
AirSnort is a wireless LAN (WLAN) tool which recovers encryption keys.
AirSnort operates by passively monitoring transmissions, computing the
encryption key when enough packets have been gathered.
802.11b, using the Wired Equivalent Protocol (WEP), is crippled with
numerous security flaws. Most damning of these is the weakness
described in "Weaknesses in the Key Scheduling Algorithm of RC4 " by
Scott Fluhrer, Itsik Mantin and Adi Shamir. Adam Stubblefield was the
first to implement this attack, but he has not made his software
public. To the best of the authors' knowledge, AirSnort is the first
publicly available implementation of this attack.
AirSnort requires approximately 100M-1GB of data to be gathered. Once
enough packets have been gathered, AirSnort can guess the encryption
password in under a second.
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Received on Aug 20 2001
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