Open Authentication
In Chapter 6, you learned about the frames that are used when a client asks to join a wireless network. The original 802.11 standard offered only two choices to authenticate a client: open authentication and WEP.
Open authentication is true to its name; it offers open access to a WLAN. The only requirement is that a client must use an 802.11 authentication request before it attempts to associate with an AP. No other credentials are needed.
When would you want to use open authentication? After all, it does not sound very secure, because it is not. With no challenge, any client may authenticate to access the network. This strategy is most often used in public places that offer wireless hot spots. If any client screening is used ...
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