Madjid Merabti

On Securing MANET Routing Protocol Against Control Packet Dropping

In this manuscript we deal with securing routing protocols of mobile ad hoc networks (MANETs) against packet dropping misbehavior. More specifically, we propose a solution to protect control packets of reactive source routing protocols against. Most current proposals focus on data packets. Nonetheless, dropping control packets may be beneficial for selfish nodes and malicious ones as well. For example, simply by dropping RREQ (Route Request) packets a selfish node could exclude itself from routes and thereby avoid receiving data packets to forward. Similarly, a malicious could drop RERR (Route Error) packets to keep the use of failed routes, potentially resulting in a denial of service. Our solution could be intergraded with any source routing protocol. For the implementation in this work, we have chosen one of the most secure protocols, namely ENDAIRA. We assess our solution by an extensive simulation study.

Future security challenges in cloud computing

Cloud computing is still a rapidly evolving landscape and with emerging technologies it created new security and non-security risks. Security challenges are one of the concerns about cloud computing, which is delaying its adoption. These challenges include lacking control over data, compliance risks, malicious insiders, access and identity management, secure virtualisation and many others. This paper gives an overview about cloud computing, describes general and security challenges and identifies future security research directions.

A Hierarchically Structured Worldwide Sensor Web Architecture

Environmental sensing is seen as key to understanding the physical processes that affect our lives. The collection of such data is used to enhance the decision making processes of governments, organizations and society as a whole in their future interactions with the planet. In order to be able to generate a global picture of the effects a physical phenomenon may have it is necessary to generate a framework which is capable of networking sensing devices on a global scale. This paper presents an initial overview of a framework to facilitate the worldwide networking of a wide variety of sensing device types into a Worldwide Sensor Web.