WEP Chaffing/Cloaking is a recently proposed anti-WEP-cracking technique that is claiming to be the savior of legacy WLAN devices still replying on WEP encryption. The WEP Chaffinf mechanism is meant to be used in Wireless Intrusion Prevention Systems (WIPS) to protect WEP encrypted networks. The WEP Cloaking technique sends spoofed WEP encrypted packets a.k.a. “chaff” into the air. These packets are specially crafted to try and confuse WEP cracking tools which subsequently would fail to crack the WEP key. In course of our talk, we demonstrated that WEP Chaffing is no panacea; it can at best delay WEP key cracking by a few seconds. We discussed the entire set of Chaffing possibilites and discussed various filters which could be used to separate the Chaff from the WEP data in each case.

A 1 minute Video clip taken by Sohail during the talk:

The entire security research team at Airtight was behind this work. Among the various contributors Amit Vartak did a really great job.

I plan to put up a separate video of my entire talk along with the demos very soon. Keep visiting.