Efficient Networks 802.11g Turbo WLAN USB Adapter with RP-SMA Connector - Manual (Page 19)

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Parameter Description
WPA-PSK – It is a special mode designed for home and small
business users who do not have access to network authentication
servers. In this mode, known as Pre-Shared Key, the user
manually enters the starting password in their access point or
gateway, as well as in each wireless station in the network.
WPA-PSK takes over automatically from that point, keeping
unauthorized users that don't have the matching password from
joining the network, while encrypting the data traveling between
authorized devices.
WPA2 – Like WPA, WPA2 supports IEEE 802.1x/EAP
authentication or PSK technology. It also includes a new
advanced encryption mechanism using the Advanced Encryption
Standard (AES). AES is required to the corporate user or
government users. The difference between WPA and WPA2 is that
WPA2 provides data encryption via the AES. In contrast, WPA
uses Temporal Key Integrity Protocol (TKIP).
WPA2-PSK – WPA2-PSK is also for home and small business.
The difference between WPA-PSK and WPA2-PSK is that
WPA2-PSK provides data encryption via the AES. In contrast,
WPA-PSK uses Temporal Key Integrity Protocol (TKIP).
WPA-NONE – WPA-NONE is defined for Ad hoc mode and
behaves like WPA-PSK (WPA-PSK is only defined for
infrastructure mode). The user manually enters the Pre-Shared
Key in each wireless station in the network and WPA-NONE
controls unauthorized users that don't have the matching
Pre-Shared Key from joining the network and also encrypts the
data traveling between authorized devices.
802.1x Setting When you have set the Authentication Type to Open, Shared,
WPA or WPA2, you can also enable IEEE 802.1x setting to use
the authentication server or certification server to authenticate
client users.
Encryption Mode None – Disable the encryption mode.
WEP – Enable the WEP Data Encryption. When the item is
selected, you have to continue setting the WEP Encryption keys.
TKIP – TKIP (Temporal Key Integrity Protocol) changes the
temporal key every 10,000 packets (a packet is a kind of message
transmitted over a network.) This ensures much greater security
than the standard WEP security.