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A Bridge-Based Key Management Scheme for Wireless Sensor Networks

A key management and bridge technology, applied in the field of network communication security, can solve the problems of lack of flexibility, high computing and communication overhead, etc.

Active Publication Date: 2017-03-22
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But its shortcomings are also obvious: on the one hand, it lacks flexibility in application, and on the other hand, the calculation and communication overhead generated during the key agreement process is relatively large.

Method used

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  • A Bridge-Based Key Management Scheme for Wireless Sensor Networks
  • A Bridge-Based Key Management Scheme for Wireless Sensor Networks
  • A Bridge-Based Key Management Scheme for Wireless Sensor Networks

Examples

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Embodiment Construction

[0136] The preferred embodiments of the present invention will be specifically described below in conjunction with the accompanying drawings.

[0137] In this embodiment, the system is composed of multiple clusters and a base station, and each cluster is independent and autonomous, such as Figure 8 shown. Each cluster is composed of a cluster head node and multiple sensor nodes. The cluster head node is responsible for receiving the information transmitted from the sensor nodes and forwarding the information to the base station. The sensor nodes are responsible for collecting and collecting information, and transmitting the information to the cluster head nodes. The base station is responsible for receiving the information transmitted from the cluster head node and forwarding it to the client.

[0138] In the wireless sensor network, each cluster is mutually independent and has the same mode, so the present invention uses the key management of a cluster as an example to exp...

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Abstract

The present invention relates to a bridge-based wireless sensor network key management scheme, including some steps: 1. Key pre-distribution: before node deployment, the configuration information is preset to each sensor node by the startup server; 2. Clustering Phase: After the cluster head node is selected, the clustering phase starts immediately. In the process of clustering, each sensor node joins the cluster closest to itself; 3. Neighbor node discovery stage: each sensor node decides whether to record other nodes as its neighbor nodes through the angle calculation formula; 4. Within the cluster Establishment of pairing key: In this process, each sensor node calculates the pairing key between it and its neighbor nodes through bridge; 5. Establishment of inter-cluster pairing key: In this process, each cluster head node passes symmetric The bivariate polynomial calculates its pairing key with other cluster head nodes. The present invention can ensure the safety and effectiveness of information transmission under the condition of ensuring a certain connection rate, and saves the amount of memory storage.

Description

technical field [0001] The invention relates to a network key negotiation method, in particular to a bridge-based wireless sensor network key management method, which belongs to the field of network communication security. Background technique [0002] Wireless Sensor Networks (Wireless Sensor Networks: abbreviated as WSN, hereinafter collectively referred to as wireless sensor network) is a wireless network composed of numerous miniature sensor nodes in an autonomous networking manner. The wireless sensor network integrates sensor technology, network technology, micro-electromechanical technology, embedded system technology and wireless communication technology, etc., and can collaboratively perceive, collect and process information of various environments or monitoring objects in the distributed area in real time, and through The wireless network transmits to the base station. The inherent characteristics of sensor nodes determine that wireless sensor networks have the fo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W12/04H04W12/0431
Inventor 郑军赵芳芳郭先臣徐三春
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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