Wired Equivalent Privacy (WEP) is a security protocol for wireless local area networks (WLANs). It has two components, authentication and encryption. It provides security equivalent to wired…

Question

Options

• AWEP uses the RC4 encryption algorithm.
• BThe Initialization Vector (IV) field of WEP is only 24 bits long.
• CIt provides better security than the Wi-Fi Protected Access protocol.
• DAutomated tools such as AirSnort are available for discovering WEP keys.

• A
  81% (35)
• C
  19% (8)

Explanation

Wired Equivalent Privacy (WEP) is a security protocol for wireless local area networks (WLANs). It has two components, authentication and encryption. It provides security equivalent to wired networks for wireless networks. WEP encrypts data on a wireless network by using a fixed secret key. WEP uses the RC4 encryption algorithm. The main drawback of WEP is that its Initialization Vector (IV) field is only 24 bits long. Many automated tools such as AirSnort are available for discovering WEP keys. Answer: C is incorrect. WPA stands for Wi-Fi Protected Access. It is a wireless security standard. It provides better security than WEP (Wired Equivalent Protection). Windows Vista supports both WPA-PSK and WPA-EAP. Each of these is described as follows: WPA-PSK: PSK stands for Preshared key. This standard is meant for home environment. WPA-PSK requires a user to enter an 8- character to 63-character passphrase into a wireless client. The WPA converts the passphrase into a 256-bit key. WPA-EAP: EAP stands for Extensible Authentication Protocol. This standard relies on a back-end server that runs Remote Authentication Dial-In User Service for user authentication. Note: Windows Vista supports a user to use a smart card to connect to a WPA-EAP protected network.

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