Aircrack

1. Introduction

http://aircrack-ng.org/

Hacks wireless routers to obtain WEP passwords. Easy to use. Supports Linux OS. Some wireless cards not supported (refer to site for more information). Free. Can be used with Live Linux CD such as Knoppix (without installing Linux). Does not support Windows.

2. Experience

Tried Aircrack and obtained WEP password in about 20 minutes. Easy to use. However, a little linux knowledge is required such as installing and running the program. 

3. Tutorials

http://aircrack-ng.org/doku.php?id=tutorial

4. WEP basics

http://en.wikipedia.org/wiki/Wired_Equivalent_Privacy

5. More research

Live Linux OS - http://www.knoppix.com/

Aircrack - http://aircrack-ng.org/doku.php

6. Keywords / Basics

Boot into Linux

Install Aircrack

Collect IVs

Airodump

Aircrack

WEP key