Mitsubishi Electronics A111 user manual Reference 64/128-bit versus 40/104-bit

Wireless Settings

Chapter 3

Chapter 3 - Reference

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.

26 A111 Wireless Card Adaptor