Im not trying to use this for illegal purposes, it would just really show us the power of android, and build on what we have created
The G1 has sufficient power to crack WEP. Your main challenge would be to get the card into promiscuous mode. That is necessary so that you can listen to the traffic and get enough logs to crack. With the logs you could even crack in a pure Java (thus native Android) app.
Promiscuous will get you nowhere.
The wifi adapter will need to be put into Monitor mode, so that it sees 802.11 frames from nonassociated APs.
I haven't examined the driver source (I was just happy to be able to get it to even build in the normal kernel tree) to see whether or not it supports this functionality. If it does not, you're likely SOL, since i sincerely doubt there is a white paper available to the public detailing the registers for the adapter.
that was kinda rude, many people work on hacking their own networs to see how secure they really are. there are hundreds of ways to do this with a computer ranging from brute force dictionary attack to capturing traffic and getting the key out of it. i sincerely believe that the OP is not trying to bullshit anyone. there are loads of people that might use it for illegal purposes which is why if an app were made(if it's even possible) i would prefer it to be terminal based since most people who want to do something illegal do not want to get their hand dirty doing it. i for one have permission from most of my neighbors that if i can get past their WPA2 network key then i have free reign on their internet. i have yet to bother doing it but i asked permission in case i get really bored one day and feel like hacking a network.
but as already posted you would have to get the wireless card in the phone into monitor mode which i'm not sure is even possible. i hope this thread is updated with some info and possibly a fix. i do believe that it would show the power of the CPU since it would take a comp between 15 minuts and an hour to crack WEP we could compare to how long it takes the phone
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