NETGEAR CG814W Reference Manual page 129

Reference
4.5 Config - Encryption Tab
Lets you configure the ASUS WLAN mini-PCI card encryption settings.
For data confidentiality in a wireless environment, IEEE 802.11 specifies a
Wired Equivalent Privacy (WEP) algorithm to offer transmission privacy
similar to wired network. The WEP uses keys to encrypt transmitted data
packets and decrypt received data packets. The encryption process can
scramble frame bits to avoid disclosure to others.
Data encryption (WEP enabled)
This option allows you to enable or disable the Wired Equivalent Privacy
(WEP) function. If this check box is selected, a WEP Key is used to en-
crypt your data before it is transmitted over the air.
If you enable WEP encryption, you will only be able to communicate with
wireless devices that use the same WEP keys.
WEP Key
This option is enable only if you enable WEP Encryption. The WEP Key is
a 64 bits (5 byte) or 128 bits (13 byte) Hexadecimal digits that is used to
encrypt transmit data packets and decrypt received data packets.
19 ASUS WLAN mini-PCI card