Safeguarding method for wireless sensor network

Abstract

The invention provides a safeguarding method for a wireless sensor network. Security functions designed in the wireless sensor network strengthen special guard nodes, a safeguarding network logically independent from the sensor network is constructed on the basis, network security includes a plurality of levels, the security levels of sensor regions in the sensor network can be provided by the safeguarding network, cryptographic algorithms are evolved by regions according to the security levels, and data guard measures of the corresponding strength are taken so that a network security mechanism capable of safely and effectively saving resources is formed. By the aid of the method, safeguarding capability of the wireless sensor network is improved, network security response time is shortened, flexibility of the network coping with security threats is improved, network security resources are saved, and cryptographic algorithm modification cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of wireless sensor network security, in particular to a dynamic self-adaptive hierarchical security mechanism of a wireless sensor network. Background technique [0002] With the rise of the Internet of Things (IOT), the Wireless Sensor Network (WSN), as the main support for its realization, has a significant impact on the development of the Internet of Things technology. In most cases, the sensor nodes of the wireless sensor network are randomly deployed in the field environment, the working environment is complex, and due to the broadcast characteristics of wireless communication, the network security situation is severe. This situation is in military reconnaissance, industrial monitoring, environmental monitoring, public Especially in security and other fields. At the same time, due to the limited resources of the wireless sensor network, it is not feasible to adopt a very complex security mechanism. The...

AI Technical Summary

Problems solved by technology

However, the dynamic key management scheme requires multiple key negotiations between nodes, which virtually increases the risk of key leakage and the energy and resource burden of nodes, and some schemes also require complex calculations and large-capacity storage resources.

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