Analytical model for authentication transmission overhead between entities in mobile networks

Efficient and Secure Authentication and Key Agreement Protocol

“…If there are m MSs in a VLR/SGSN, then the VLR/SGSN must store L * m authentication vectors. Therefore, a space overhead occurs [2].…”

“…The SN consists of the visited location register (VLR) and the Serving GPRS Support Node (SGSN). The VLR handles circuit switched traffic, but SGSN handles the packet switched traffic [2,4].…”

“…Authentication is used as an initial process to authorize a mobile terminal for communication through secret credentials [2]. In authentication process, a mobile terminal is required to submit secret materials such as certificate or "challenge and response" values for verification.…”

“…To provide security services in wireless networks, authentication is used as an initial process to authorize a mobile terminal for communication through secret credentials [1,2,4]. Authentication procedure is executed when the MS moves from one registration area (RA) to another one (i.e., location update) during the process of calls origination and call termination.…”

“…The MS is continuously listening to the broadcast message from VLR/SGSN to identify the location area by using location area identity (LAI) and the MS compares the LAI which is received with the LAI that stored in the Universal Subscriber Identity Mobile (USIM). When the LAI is different, then the MS executes authentication procedure [1,2].…”