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Ad hoc wireless networking is a new approach to wireless communication with potential applications in very unpredictable and dynamic environments. Many applications today, especially in military and emergency situations, are based upon ad hoc wireless networks. The security requirements of these networks are harder to enforce than in a traditional network. Securing the routing in ad hoc wireless networks creates difficulties that do not exist in traditional networks. These networks have neither centrally administrated secure routers nor strict policies of use. In this paper, we present a new secure routing protocol, in order to protect the network against any malicious attack and to satisfy our requirements, based on secure path node-to-node routing.