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For the protection of both routing and data forwarding operations, a network layer security solution has been provided as a solution for various security attacks in ad hoc networks. In this paper, to develop a security framework has been proposed. This security framework involves: Detection of malicious nodes by the destination node, isolation of malicious nodes by discarding the path and prevention data packets by using dispersion techniques. Its Reliable and Secure Framework (RSF) consists of a Reliable Multipath Routing (RMR) algorithm, which determines a set of node-disjoint reliable paths. The paths are arranged in the descending order of their reliability index. Data packets are dispersed and transmitted simultaneously through the reliable disjoint paths.
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