Honeypots

Wireless Honeypots 197

First, the wireless network interface randomly chooses an IV

value and concatenated with the shared secret key to form the WEP

Key (IV + secret key). The 802.11 standard does not defi ne how the

wireless network interface must be chosen. Therefore, the way the

wireless network interface chooses the IV value depends on the

manufacturer.

When the WEP Key is ready, this key is passed to the RC4

stream cipher to produce a pseudo-random string with the data

packet length. The actual encryption occurs when the wireless

network interface performs a logical XOR operation between the

data packet with the pseudo-random string. T