Abstract:
ABSTRACT
WiMAX (World wide interoperability for Microwave Access) is a step
towards 4th generation communication. Wireless communication is
more vulnerable to attacks such as man in the middle attack,
jamming, replay and DoS etc. The strength of CCMP algorithm used
in WiMAX is prone to pre-computation attack as the initial counter is predictable. Packet based challenge response mechanism uses separate encryption key for each packet thus strengthening the security of the connection against unauthorized access by immediately discarding the packet if packet authentication fails. Further, the Nonce and initial counter are not predictable anymore.
