Kerrache Chaker Abdelaziz

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Delivering data through the most reliable and trusted path is essential for any kind of network. Moreover, in highly mobile and dynamic networks such as VANETs, the problem is more complex since every node requires, at least, a previous knowledge about its own neighborhood to select the most adequate path. In addition, the open communication medium causes(More)
Trust management is one of the major issues for secure communication in vehicular network. Most of the existing trust models are identity-based and use excessive periodic exchange between vehicles to build a decision about trustiness of participating vehicles. Malicious data can be minimized in such models using identities reputation. In general, the nature(More)
Enhancing road safety is the main goal of Vehicular Adhoc Networks (VANETs). However, the assumption that all peers are honest, cooperative can lead to catastrophic situations. To deal with such misbehaving peers, trust establishment can be used to enhance the security without affecting network performance. In this paper, we propose an opportunistic alert(More)
Detecting malicious and selfish nodes in mobile and wireless networks is a task that typically relies on watchdog techniques. However, such medium overhearing techniques are prone to cause a high energy consumption. In this paper we propose a distributed time division-based monitoring strategy to achieve the high security levels required while consuming(More)