Description: This is the solution to the Wi-Fi Security Challenge 2 posted here: http://www.securitytube.net/video/1862
In this video, I present the solution, announce the winners and announce - the Mega Challenge - "The 12 Tasks of Aircules"! :) We also talk about the schedule for the WPA/WPA2/802.1x videos and other challenges.
The key hack in the challenge was the messed up timestamps. It made it obvious that this consisted of packets from traces collected at different times and mixed together. The solution was to first arrange the packets based on timestamp, and then to find the point in the packet trace, where the next trace started. The we separate the trace files and use Aircrack-ng to crack it.
Here is Josh Wright's post on using Scapy and Python: http://www.packetstan.com/2011/05/sorting-packet-captures-with-scapy.html
This will come in handy for later challenges. Definitely recommended you to have a look.
Thanks all for participating and please take the time to write about your experience in the competition, whether you found it to be difficult / easy, suggestions for future challenges etc. and most importantly congratulate the winners! :)