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View Full Version : How to Crack a Wi-Fi Network's WEP Password with BackTrack



DMac
26th October 2010, 07:37 AM
How to Crack a Wi-Fi Network's WEP Password with BackTrack (http://lifehacker.com/5305094/how-to-crack-a-wi+fi-networks-wep-password-with-backtrack)

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Today we're going to run down, step-by-step, how to crack a Wi-Fi network with WEP security turned on. But first, a word: Knowledge is power, but power doesn't mean you should be a jerk, or do anything illegal. Knowing how to pick a lock doesn't make you a thief. Consider this post educational, or a proof-of-concept intellectual exercise.


Secure Your Home Wi-Fi Network (http://lifehacker.com/386675/secure-your-home-wi+fi-network)

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Unlike WEP, WPA uses a 48-bit initialization vector and a 128-bit encryption key. More importantly, however, WPA uses what's called the Temporary Key Integrity Protocol (TKIP). Whereas WEP recycles the same key for encrypting all the packets flowing across the network, WPA's TKIP changes the encryption key every single time a packet is transmitted. This, combined with the use of longer keys, prevents a hacker from compromising a router simply by passively observing a large enough set of packet transmissions.