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Security is extremely important for the deployment of a mobile ad-hoc networks (MANET) due to its openness to attackers, the absence of an infrastructure, and the lack of centralized administration. Most research efforts have been focused on secure routing protocols, the distributed certificate authority, and key distribution, while a few projects have focused on secure autoconfiguration. However,...
In vehicular ad hoc networks (VANETs), the malicious messages and tampered messages threat other drivers' life or confuse the traffic order possibly. The anonymity has to be traceable when the law enforcement authority wants to figure out the accountabilities about the anonymity. We describe the problem that characterizes the privacy of VANETs and proposes a new anonymous key mechanism with a system...
Secure and efficient communication among a set of mobile node is one of the most important research subjects in ad hoc wireless networks. Due to the resource scarcity in ad hoc networks, traditional key management protocol cannot be effectively applied to such decentralized networks. After study different strategies, in this paper the trust evaluation based clustering technique is employed to propose...
In ad-hoc networks, mobile nodes cannot be supported the group authentication by Internet infrastructure. To resolve the group authentication in ad-hoc networks, several protocols for group key agreement have been proposed. These protocols assumes the reliable communication links between MNs. However, wireless links in ad-hoc network are inherently unreliable. We propose a group key agreement algorithm...
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