ATTACKS ANALYSIS AND BIOINSPIRED SECURITY FRAMEWORK FOR IP MULTIMEDIA SYSTEM

Abstract

The aim of this thesis is to analyze the security vulnerabilities and requirement of IP Multimedia Subsystem (IMS), particularly the impact of Denial of service (DoS) and Distributed (DoS) attacks on IMS network. Finally, develop an intelligent Bioinspired self-defending / self-healing security frame work for IMS and Next Generation All-IP Networks, which will complement existing authentication and encryption mechanisms to protect infrastructure nodes and subscribers against the attacks launched by malicious nodes in the network. The unique and real-time vulnerabilities which need to be addressed in the IMS include: IMS frameworkrelated vulnerabilities, session initiation protocol (SIP) vulnerabilities, media plane related vulnerabilities, authentication and encryption protocol vulnerabilities, Voiceover-IP (VoIP)/video/messaging/Push-to-talk-over-Cellular (PoC) spam and service abuse of IMS applications like VoIP, video, PoC, messaging, presence and conferencing. This framework is expected to become a cardinal component that will protect against the misuse of the network resources of an operator. This framework will be integrated into any IMS converged network infrastructure to provide defense against wide varieties of attacks particularly Denial of Service (DoS) attacks. The goal is that our system will ultimately become an integral part of security framework for IMS and Next Generation All-IP networks.