An Improved Key Distribution Method in Large Hierarchical Wireless Sensor Networks

A wireless sensor and key distribution technology, applied in wireless communication, network topology, electrical components, etc., can solve the problems of key storage and communication overhead, network data transmission, poor overall stability, and affecting network security performance

Inactive Publication Date: 2019-03-05
HEILONGJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention solves the problem that the traditional key distribution mechanism in the existing large-scale layered wireless sensor network environment has large key storage and communication overhead and poor overall stability of network data transmission, which seriously affects the security performance of the network.

Method used

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  • An Improved Key Distribution Method in Large Hierarchical Wireless Sensor Networks
  • An Improved Key Distribution Method in Large Hierarchical Wireless Sensor Networks
  • An Improved Key Distribution Method in Large Hierarchical Wireless Sensor Networks

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Embodiment

[0112] Utilize the present invention to simulate, and compare the security of other key distribution mechanisms at the same time;

[0113] figure 2 In order to show the network resilience against cluster head node capture attack in the network initialization stage, that is, the security performance comparison simulation results of IKDS and other key distribution mechanisms, the simulation running time is 500 seconds, and the number of nodes in the network is selected as 10000. The number of cluster heads is 100, and LEKM (Low Energy Key Management) is a low-energy key management mechanism in wireless sensor networks proposed by G.Jolly et al.;

[0114] Such as figure 2 As shown, compared with other key distribution mechanisms, the improved key distribution mechanism can effectively improve the security of the network. When all the cluster heads are damaged, the keys preloaded in the sensor nodes in the network will not be damaged. Because in LEKM, each cluster head stores ...

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Abstract

An improved key distribution method in a large layered wireless sensor network relates to the technical field of wireless ad hoc networks, in particular to an improved key distribution mechanism for establishing a secure layered wireless sensor network. Aiming at the problem of large key storage and communication overhead in the traditional key pre-distribution mechanism, the present invention proposes to use an improved key distribution mechanism to ensure a complete network connection. Since wireless sensor networks are usually deployed in harsh environments and unattended modes of operation, to protect sensitive data and sensor readings, secret keys should be used to encrypt the information exchanged between communicating nodes. The invention uses a layered network model and a binary polynomial key generation mechanism. No matter how many sensors are destroyed, the IKDS ensures that the communication parties can establish a unique paired key between each other. This improved key distribution mechanism reduces key storage and communication overhead, increases security, and enhances the overall stability of network data transmission. The invention is applicable to the technical field of large-scale layered wireless ad hoc networks.

Description

technical field [0001] The invention relates to the technical field of large-scale layered wireless ad hoc networks, in particular to an improved key distribution method for establishing a secure layered wireless sensor network. Background technique [0002] In recent years, with the improvement of microelectromechanical systems (MEMS) technology, large-scale wireless sensor networks have been widely used in various scenarios, such as object tracking, environmental monitoring, and data acquisition. Usually, a wireless sensor network is composed of a large number of sensor nodes, and each sensor node is a small, cheap wireless device with limited battery power, storage space, data processing capability, and short wireless transmission range. Depending on the sensing units equipped, wireless sensor nodes can measure various physical properties such as sound, temperature, pressure, etc. Many wireless sensor nodes are organized into clusters to track specific objects or monitor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W12/04H04W12/02H04W84/18H04W12/0431
CPCH04W12/02H04W12/04H04W84/18
Inventor 秦丹阳贾爽杨松祥王尔馥丁群马宏斌
Owner HEILONGJIANG UNIV
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