ZyXEL Communications P-2608HWL-D1 Support Notes page 104

P-2608HWL Series Support Notes
WEP uses the Ron's Code 4 Pseudo Random Number Generator (RC4 PRNG) key encryption algorithm.
The same key is used to encrypt and decrypt the data.
WEP provides a simple defense against attacks. To avoid encrypting two cipher texts with the same key
stream, an Initialization Vector (IV) is used to augment the shared WEP key (secret key) and produce a
different RC4 key for each packet. There are two WEP key (secret key) types: 64-bit and 128-bit. They
are sometimes referred to as 40-bit and 104-bit. The reason for the different term used is that the
40/104-bit WEP key is concatenated with the initialization vector (24 bits) resulting in a total key size of
64/128 bits.
Setting up the Access Point
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