Which of the following protocols provides an encryption by using the Temporal Key Integrity
Protocol (TKIP)?

A.
EAP

B.
WEP

C.
IPSec

D.
WPA

Explanation:

Wi-fi Protected Access (WPA) is an interoperable security protocol for Wireless LAN (WLAN). For
using WPA, encryption is required. WPA provides encryption by using Temporal Key Integrity
Protocol (TKIP). TKIP uses a new encryption algorithm, which is stronger than WEP algorithm. 802.1x
authentication is required in WPA.
Answer option B is incorrect. Wired Equivalent Privacy (WEP) is a security protocol for wireless local
area networks (WLANs). It has two components, authentication and encryption. It provides security,
which is equivalent to wired networks, for wireless networks. WEP encrypts data on a wireless
network by using a fixed secret key. WEP incorporates a checksum in each frame to provide
protection against the attacks
that attempt to reveal the key stream.
Answer option A is incorrect. Extensible Authentication Protocol (EAP) is an authentication protocol
that provides support for a wide range of authentication methods, such as smart cards, certificates,
one-time passwords, public keys, etc. It is an extension to Point-to-Point Protocol (PPP), which
allows the application of arbitrary authentication mechanisms for the validation of a PPP connection.
Answer option C is incorrect. Internet Protocol Security (IPSec) is a method of securing data. It
secures traffic by using encryption and digital signing. It enhances the security of data as if an IPSec
packet is captured, its contents cannot be read. IPSec also provides sender verification that ensures
the certainty of the datagram’s origin to the receiver.
Reference: ” http://en.wikipedia.org/wiki/Wi-Fi_Protected_Access”