Abstract
This paper proposes holistic security model through multi-bearer communication protocols over TCP/IP and SS#7 signalling networks to address security challenges in mobile environment. Holistic security comprises of multi-bearer communication, multifactor authentication, mutual authentication, TLS (Transport Layer Security), and fine-grained contextual role based access control. We present a novel procedure named as SS#7 Medium Access Procedure (SMAP) to access the SS#7 bearer through SMS (Short Message Service) that has been tested in a live GSM network. Through this procedure, we overcome security vulnerability in SMPP (Short Message Peer-to-Peer) protocol. We also propose—extension of TLS protocol for mutual authentication and principal evaluation. Through principal and context awareness, we determine the location and network attributes of the client to invoke fine-grained contextual role based access control.
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