Chapter 4. WEP Cracking
In this chapter, we will cover the Wired Equivalent Privacy (WEP) protocol and its vulnerabilities, showing how to crack the WEP keys with some of the tools included in Kali Linux, namely, the Aircrack-ng suite and Fern WiFi Cracker.
We will cover the following topics:
- Introduction to WEP
- WEP cracking with Aircrack-ng
- WEP cracking with automated tools
An introduction to WEP
The WEP protocol was introduced with the original 802.11 standard as a means to provide authentication and encryption to wireless LAN implementations. It is based on the RC4 (Rivest Cipher 4) stream cypher with a preshared secret key (PSK) of 40 or 104 bits, depending on the implementation. A 24 bit pseudo-random Initialization Vector (IV) is concatenated ...
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