Christian Tchepnda

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With the advent and ubiquitous of wireless technology, a wide range of advanced services are expected to be supported including appealing services that currently exist in wired systems. Nevertheless, the resource constraints in wireless environment may render difficulty to realizing all the desirable services. Consequently, an infrastructure with high data(More)
In this paper, we propose a distributed trust infrastructure for heterogeneous networks. This infrastructure is inspired from the social trust model reflected in both mathematical heuristics and a communication protocol. It is with a view to optimize the cost of security, and therefore to use security means more effectively, that the trust infrastructure,(More)
This article provides a panorama on the security in vehicular networks’ environments. The special characteristics of these environments are presented and a general classification for the different types of attacks illustrated by some relevant attacks examples is introduced. Consequently, some key security requirements and security challenges are derived,(More)
In this paper we introduce a prioritization scheme for enhancing the performance of the authentication process in vehicular networks using dedicated short range communications (DSRC). We consider the authentication as a service that should be required by each user in order to gain access to the network and to the offered services. Instead of using a unique(More)
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