"Wi-Fi Protected Access version 2 (WPA2) is becoming the de
facto standard for securing wireless networks, and a mandatory
feature for all new Wi-Fi products certified by the Wi-Fi Alliance.
We all know the security weaknesses of its predecessor, WEP; this
time they got it right. Here's how to implement the WPA2 protocol
on a Linux host and create a secure wireless access point (WAP) for
"Most consumer-grade commercial WAPs operate in the same simple
manner: they create a bridge between a wired (Ethernet) network
interface and a wireless one..."