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Wep/wpa cracker
If you aren't able to conduct a proper search for the tools, you clearly aren't ready to crack wep. However, far be it from me to deter anyone in their pursuit of knowledge. First, STFW. Second, check out various distributions of *nix. I would recommend Backtrack. It's easy to use and comes with a good compilation of tools to get you started.
Here you go http://www.hellboundhackers.org/articles/441-WEP-Cracking,-FBI-Style.html
Have fun :happy: