Safe positioning method in wireless sensor network

A wireless sensor and secure positioning technology, applied in the field of network information security, can solve the problems of unsatisfactory positioning performance of wireless sensor nodes, high hardware requirements of network equipment, and increased delay in positioning process, so as to save computing cost, reduce computing burden, energy saving effect

Inactive Publication Date: 2011-04-06
BEIJING UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The positioning methods currently proposed have the following main defects: the positioning method based on distance measurement has high requirements on the hardware of network equipment, for example, the method based on the angle of arrival requires array antennas and other equipment, and the measurement method based on signal strength is aff

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  • Safe positioning method in wireless sensor network
  • Safe positioning method in wireless sensor network
  • Safe positioning method in wireless sensor network

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Embodiment Construction

[0057] Embodiments of the present invention will be described in detail below with reference to the above description and accompanying drawings. The implementation of the present invention is based on the following prerequisites and network assumptions:

[0058] a. All nodes in the network have synchronized clocks; b. Each node in the network has a unique ID number to distinguish its identity; c. Each beacon node has a key pair consisting of a public key and a private key ; d. The nodes in the network can send signals with different frequencies, such as radio frequency signals and ultrasonic signals; e. The nodes in the network are divided into groups according to the communication relationship, and each group has a unique ID. There are at least 3 beacon nodes, and the beacon nodes and ordinary nodes in the same group share a key pair consisting of a public key and a private key; f. The nodes are relatively static during the positioning process.

[0059] 1. Implementation ins...

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Abstract

The invention belongs to the technical field of computer network security, relating to a safe positioning method in a wireless sensor network. The traditional positioning methods do not consider the security problems sufficiently, and the invention provides the positioning method based on a signcryption mechanism so as to ensure confidentiality of position information and integrity of the position information in the transmission process. The method comprises the following steps of: carrying out signcryption and broadcasting on the position information by a beacon node; carrying out unsigncryption and authentification on the received position information by an unknown node; calculating a self-position by the unknown node; and updating the self-position by the node. Compared with the prior art, the invention effectively protects the position information in the positioning process, completely considers the characteristic of limited energy of a wireless sensor node, and minimizes the communication cost and calculating cost of the node in the positioning method. The invention has flexible positioning and updating mechanism, and executors can adjust according to the specific circumstances of the network so as to achieve the satisfied positioning convergence time.

Description

technical field [0001] The invention relates to a secure positioning method in a wireless sensor network, in particular to a secure positioning method in a wireless sensor network based on an elliptic curve signcryption scheme, which can be used for position calculation of unknown nodes in a wireless sensor network, and belongs to network information security area. Background technique [0002] Wireless sensor networks are mainly used to perceive, fuse and transmit various types of data, such as temperature, humidity, pressure, speed, etc. The collected data often have practical significance together with the corresponding location information. Therefore, wireless sensor network node location technology has become one of the key technologies to realize the application of sensors in many aspects. [0003] In wireless sensor networks, most of the existing positioning methods for wireless sensor nodes do not consider security issues. The location information of sensor nodes is...

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Application Information

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IPC IPC(8): H04W64/00H04W84/18
CPCY02D30/70
Inventor 何泾沙张婷韦潜肖鹏
Owner BEIJING UNIV OF TECH
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