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26 A111 Wireless Card Adaptor
Chapter 3 - Reference
Chapter 3
Wireless Settings
64/128-bit versus 40/104-bit
You may be confused about enabling WEP encryption, especially
when using multiple wireless LAN products from different vendors.
There are two levels of WEP Encryption: 64-bit and 128-bit.
Firstly, 64-bit WEP and 40-bit WEP are the same encryption method
and can interoperate in the wireless network. This lower level of WEP
encryption uses a 40-bit (10 Hex character) as a “secret key” (set by
the user), and a 24-bit “Initialisation Vector” (not under user control).
Together this makes 64 bits (40 + 24). Some vendors refer to this level
of WEP as 40-bit and others refer to this as 64-bit. Our WLAN products
use the term 64-bit when referring to this lower level of encryption.
Secondly, 104-bit WEP and 128-bit WEP are the same encryption
method and can interoperate in the wireless network. This higher level
of WEP encryption uses a 104-bit (26 Hex character) as a “secret
key” (set by user), and a 24-bit “Initialisation Vector” (not under user
control). This together makes 128 bits (104 + 24). Some vendors refer
to this level of WEP as 104-bit and others refer to this as 128-bit. Our
WLAN products use the term 128-bit when referring to this higher
level of encryption.
Click on Apply to save and activate the new configuration.