Method for tolerating malicious nodes in wireless sensor network

Abstract

The invention discloses a method for tolerating malicious nodes in a wireless sensor network. According to the method for tolerating the malicious nodes in the wireless sensor network, a traditional safety protection method based on an encryption model, an authentication model and a trust model is changed, and an active protection method which is achieved in a mode of actively destroying the malicious nodes is adopted to achieve the purpose of attack tolerance. The energy of the malicious nodes is consumed by transmitting nonsignificant data in the network, in an attack tolerance state, normal nodes generate energy consumption only when data are sent, the malicious nodes are in a radio frequency working state all the time, and small energy consumption of all the normal nodes is exchanged for the large energy consumption of the malicious nodes so that the malicious node can not work. By the adoption of the method for tolerating the malicious nodes in the wireless sensor network, the malicious nodes are effectively prevented on the premise that the normal data communication of the wireless sensor network is guaranteed, and a new idea is provided for the safety communication of the wireless sensor network.

Description

technical field [0001] The invention relates to a malicious node attack tolerance method in a wireless sensor network, belonging to the fields of wireless communication and network security. Background technique [0002] In recent years, with the development and integration of technologies such as sensors, computers, wireless communications, and micro-electromechanical systems, wireless sensor networks (WSN: wireless sensor networks) have emerged. People can finally monitor the external environment in real time and realize large-scale, automated information. collection. WSN has broad application prospects in military and civilian fields such as military reconnaissance, environmental monitoring, medical monitoring, space exploration, urban traffic management, and warehouse management. [0003] A wireless sensor network is composed of a large number of sensor nodes with limited battery energy, computing power, storage capacity, and communication capabilities. If the network ...

AI Technical Summary

Problems solved by technology

[0005] At present, malicious nodes in some wireless sensor network models are assumed to have unlimited energy and resources, but this assumption is often not true in practical applications. In the actual wireless sensor deployment scenario, unlimited energy and resources are almost impossible. Realized, this is only applicable to wired network scenarios

Therefore, for malicious nodes, there is also the situation that when the energy is exhausted and cannot work

[0006] The attack methods of malicious nodes in the sensor network include selective forwarding, data tampering, replay and DOS attacks, etc. If malicious nodes want to carry out the above attacks, when there is data packet transmission in the network, the radio frequency circuit must be in working condition, otherwise unable to achieve the purpose of the attack

Images