Safe positioning method for wireless sensor

Abstract

The invention discloses a safe positioning method for a wireless sensor; the safe positioning method adopts two safe positioning methods which are the malicious beacon detection based on the checkpoint and the malicious beacon detection algorithm based on the regional voting mechanism to solve the positioning safety problem of the sensor network nodes. The positioning method improves the anti-attack capability of the system through filtering the malicious beacons directly so that not only the known attacks can be defended, but also the unknown attacks can be defended; the corresponding defending measurement for every possible specific attack is avoided; the implementation of the safety strategy of the positioning system is simplified; the two detection methods are combined effectively to adjust the defending strategy automatically according to the attack types; the safe positioning is guaranteed and the computation cost is reduced effectively; the neighbor communication authentication technique based on the unidirectional key chain is adopted to avoid the support of other network safety protocols so that the storage cost of the sensor nodes is reduced; the neighbor communication authentication technique can be compatible and used together with the present wireless sensor network protocol; the safety target of the positioning system of the sensor network nodes is realized.

Description

technical field The invention belongs to the technical field of network communication, and relates to wireless self-organizing network security technology. Specifically, based on the verification of internal and external consistency of beacons, a secure wireless sensor network node positioning method is proposed to solve the security problem of node positioning in sensor networks. , that is, how the node can correctly obtain its own geographic location information after being randomly deployed to prevent various internal and external attacks against the node positioning system. Background technique Wireless sensor network is a wireless multi-hop network composed of a large number of micro, low-cost, low-power sensor nodes deployed in the monitoring area, which realizes the collection, processing and publishing of sensitive data in the monitoring area. Sensor networks have many advantages such as rapid deployment, cooperative perception, and high fault tolerance, so they have...

AI Technical Summary

Problems solved by technology

The purpose of the present invention is to solve the deficiencies of the existing security positioning methods, fully investigate the characteristics of the sensor network and node positioning mechanism, and propose a wireless sensor security positioning method, which improves the anti-attack ability of the sensor itself by filtering out malicious beacons

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