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Security in routing is a challenging issue in Mobile Ad-hoc (MANET) NETwork because of its open nature, infrastructure less property, mobility and energy constraints. Messages typically roam in multi-hopped fashion and nodes may be powered by limited energy source and with limited physical security. So, the authors proposed a new scheme which is significantly different from others available schemes to provide security during routing in mobile ad hoc networks. In this paper, their proposed scheme, Secure Multipoint Relay based Routing in MANET (SMRR) provides routing based on trust, which is an integer value that helps to select Multipoint Relay (administrator) inside the network for routing. They have also implemented the message confidentiality and integrity in their proposed scheme.
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