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With the properties of openness and dynamic in topology, wireless sensor networks are challenged with great security threats. In this paper we focus on the wormhole attack which is proved to be particularly dangerous to the resource-limited sensor nodes. We present the SA-TC algorithm for detecting and thus defending against this serious threat. It is based on the on-demand multi-path routings and...
Based on pure P2P principle, a potential propagating approach of active worm which can achieve fast and self propagation performances through fragmentation mechanism is proposed in this paper. According to the features of P2P and active worm, SEI and SEIR mathematic models are given to describe the dynamical process of propagation without control and under control respectively. Simulations of these...
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