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.
