A Trust Secure Funnel based Mobile Service Discovery and Exposure Model

IMS (IP Multimedia Subsystem) is confronted to various evolutions. The purpose of these evolutions is mainly to enhance subscriber experience by offering a variety of services that meets his needs and requirements. This variety of services and features involves interactions between different actors such as operators, service providers and subscribers. A meaningful mass of information within networks will be exchanged between these actors. In another side, IMS entities include a mass of sensitive information about subscribers' profiles, their behavior and their service use log. Securing these exchanges that contain important information has become a necessity. This paper presents our trust secure funnel based mobile service discovery and exposure model in order to define and implement security strategies to get around the problematic of malicious attacks of the available mass of information within the network and during exchanges between actors. Results shows improvement compared to other works on several axes.