Abdelmalek Benzekri

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In this paper we propose an approach, combining the SET protocol with the TLS/WTLS protocols in order to enforce the security services over the WAP 1.X for the payment in the m-commerce. We propose to implement the additional services of the SET protocol as the confidentiality of the payment information between the buyer and the payment gateway and the data(More)
The grid has emerged as a platform that enables to put in place an inter organizational shared space known as Virtual Organization. The Virtual Organization (VO) encompasses users and resources supplied by the different partners for achieving the VO's creation goal. Though many works offer solutions to manage a VO, the dynamic, on the fly creation of(More)
The grid has emerged as a platform that enables inter-organizational Internet-based collaborations in a sharing space called virtual organization (VO). Building a VO, in an open environment as the Internet, necessitates an access control policy to authorize, control and forbid activities in order to achieve the different partners' mutual benefits. Our goal(More)
Policy based network management (PBNM) is now a recognized standard approach for network management. Its particularity comes from the separation of the rules that govern the system and the functionalities provided. Even so, policy refinement-i.e. translating high level policies into concrete ones-remains a key problem in the policy based network management.(More)
In this paper we propose a new model for providing QoS guarantees to real time multimedia applications in mobile ad hoc networks. Our model assures equal delay for each packet at every hop in the path, and handles network congestion through the use of call admission control and congestion control mechanisms. The effectiveness of our proposed solution in(More)