Which of the following is used by Wi-Fi Protected Access (WPA) to provide data encryption?
A.
IDEA
B.
TKIP
C.
RSA
D.
RC4
Explanation:
TKIP (Temporal Key Integrity Protocol) is an encryption protocol defined in the IEEE 802.11i standard
for wireless LANs (WLANs). It is designed
to provide more secure encryption than the disreputably weak Wired Equivalent Privacy (WEP). TKIP
is the encryption method used in Wi-Fi
Protected Access (WPA), which replaced WEP in WLAN products.
TKIP is a suite of algorithms to replace WEP without requiring the replacement of legacy WLAN
equipment. TKIP uses the original WEP
programming but wraps additional code at the beginning and end to encapsulate and modify it. Like
WEP, TKIP uses the RC4 stream
encryption algorithm as its basis.