An EDTM Based Intrusion Prevention System

Due to the wireless and resource-constraint nature of a sensor network makes it an ideal medium for malicious attackers to intrude the system during packet transmission. Thus, providing security is extremely important for the safe application of WSNs. In order to prevent the nodes from various attacks we propose an intrusion prevention system based on trust modeling and evaluation in EDTM. The proposed method will prevent the nodes from various attacks based on trust modeling and evaluation in EDTM. The EDTM can evaluate trustworthiness of sensor nodes more precisely and prevent the security breaches more effectively. According to the number of packets received by sensor nodes, direct trust and recommendation trust are selectively calculated. Then, communication trust, energy trust and data trust are considered during the calculation of direct trust. Furthermore, trust reliability and familiarity are defined to improve the accuracy of recommendation trust. A multi-hop network which means that the sensor nodes can only directly communication with the neighbor nodes within their communication range the packets exchanged between any two non-neighbor nodes are forwarded by other nodes. The forwarding node not only can just "pass" the packets from source nodes to destination nodes but also can process the information based on their own judgments. The simulation results are provided to compare that proposed model is efficient to use than NBBTE model.