WEP also known as Wired Equivalent Privacy was intended to provide comparable confidentiality to a traditional wired network. Several security weaknesses have been identified. Despite the weaknesses, WEP provides a level of security that can deter casual snooping.
The FBI method relies on the following tools: Kismet and Aircrack. Both can be found on Linux live cds such as knoppix.
Do the following if you have the tools available:
- Run Kismet to find your target network. Get the SSID and the channel.
- Run Airodump and start capturing data.
- With Aireplay, start replaying a packet on the target network. (You can find a ‘good packet’ by looking at the BSSID MAC on Kismet and comparing it to the captured packet’s BSSID MAC)
- Watch as Airodump goes crazy with new IVs. Thanks to Aireplay.
- Stop Airodump when you have about 1,000 IVs.
- Run Aircrack on the captured file.
- You should see the WEP key infront of you now.
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but u need a minimum of 100.000 IVs. sometimes it works with 80.000 IVS. but 1.000 THATS NOT CORRECT !