Enhanced Authentication and Key Agreement Procedure of next Generation 3GPP Mobile Networks
Keywords:
LTE/SAE, UMTS-AKA, HSS, MME.Abstract
In the next generation mobile networks, because of
fundamental changes with respect to previous cellular 3.xG networks and integration different access network which caused frequent handover and provision all IP packet-based services, load transaction overhead such as authentication traffic overhead as an important initial security process to identity of users, between entities are a lot. In this research first explain evolved authentication and key agreement protocol for
next generation Long term evolution/ System Architecture Evolution( LTE/SAE )networks and compared its enhancements with contrast to Universal Mobile Terrestrial System- Authentication and Key Agreement( UMTS-AKA), then, offers a new improvement protocol which increases performance of authentication procedure. The current 3GPP LTE –AKA has some shortcomings, including bandwidth consumption between a serving networks and a user’s home network, computation overhead and imperfect mutual authentication. in fact the new proposed protocol by sharing serving network with Home Subscription Server(HSS) for execution of authentication procedure and increasing a little computation in Mobility Management Entity(MME) and generated joined authentication vectors in both MME and HSS
can remove aforementioned problems during authentication process. The proposed scheme is analyzed and its advantages have been verified by simulation. Our new proposed protocol can satisfy security requirements and simulation result shows in
the proposed-AKA with contrast to original-AKA, the more MS and service request rate, the more considerable deduction of authentication load for HSS.
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