Atmel Wireless LAN Access Point Manual de usuario descargar pdf (Pagina 78)

Encryption

• All users throughout the Internet can read unencrypted data, illustrated below

with a simple wired network.

• B want to send some data to A, but the data was intercepted by C.

• C then modifies the data and transmits it to A. A is unaware of C’s presents

and thinks the data originates from B.

With wireless networks, data is even more vulnerable to such attacks since

everyone within your radio transmitting range can intercept your data.

Wired Equivalent Privacy (WEP) provides techniques to prevent intruders invading

your data.

With the current IEEE specification, WEP encryption has two types, 64 and 128

bits

encryption.

Other manual may specify 40 or 104bits encryption, this is because the manual didn’t include 24 bits Initialization

Vector (IV).

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Atmel Wireless LAN Access Point Manual de usuario Pagina 78