Policy-based Security Management using a Multi- agent System

Networks become more complex particularly in terms of offered services (such as e-services and mservices). Moreover, the number of users is continuously increasing. Networks are therefore more and more subject to various kinds of complex security attacks. So, security management of these new networks, particularly intrusion detection, requires more intelligence and sophistication. However, existing solutions are developed for well-defined networks and systems and are not adapted to dynamical environments and to the increasing complexity of user behaviors. Particularly some recent aspects like the mobility of users, enhance this complexity. Classical security solutions cannot easily deal with these aspects.