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Allocation and management method of the secrete key in the sensor network

A sensor network and key technology, which is applied in the field of key distribution and management in sensor networks, can solve the problems of inability to guarantee network connectivity, sparse node distribution, weak anti-tampering mechanism, etc., and saves communication energy overhead and resources. The effect of strong restraint and good safety performance

Inactive Publication Date: 2007-07-11
INST OF COMPUTING TECH CHINESE ACAD OF SCI
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Problems solved by technology

Therefore, in some special occasions, such as sparse distribution of nodes or uneven density, random key pre-distribution cannot guarantee the connectivity of the network
[0022] In fact, in the design of nodes in the sensor network, a simple method (using a security chip to store sensitive information) can be used to implement a weak anti-tampering mechanism, so that the adversary can only obtain part of the secret data after physically capturing the sensor node, or in other words, obtain all Secret data takes more time

Method used

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  • Allocation and management method of the secrete key in the sensor network
  • Allocation and management method of the secrete key in the sensor network

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Embodiment Construction

[0068] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0069] Based on the consideration of network scalability and ease of management, large-scale sensor networks often adopt a hierarchical organizational network structure. In this structure, the network is divided into several clusters, and each cluster consists of a cluster head and multiple common nodes, so it is also called a clustered network structure. The sensor nodes form independent clusters through the established strategy, each cluster selects the corresponding cluster head, and the cluster head is responsible for controlling the nodes in the cluster, and fuses the data collected by the cluster nodes, and then forwards it to the base station.

[0070] The single-hop clustering network structure adopted in the pres...

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Abstract

This invention discloses one method to align and manage in sensor network, which comprises the following steps: a, before distributing sensor network points to set whole key Km and coded random function F for each point with only identification and to compute point backup key Kid; b, in sensor initiating phase, establishing sensor network by cluster structure as cluster code key data set; c, in sensor operation, when there is new points, adding new communication range of HELLO information.

Description

technical field [0001] The invention relates to the field of application related to sensor network security in information security technology, in particular to a method for distributing and managing keys in a sensor network. Background technique [0002] The sensor network (Sensor Network) formed by integrating various technologies such as sensors, embedded computing systems, distributed information processing and wireless communication networks is a new information acquisition and processing technology. [0003] Generally, a sensor network is a self-organizing and distributed network system composed of a large number of miniature sensor nodes with perception, computing and communication capabilities. With the help of a variety of integrated miniature sensors built into the node, it measures thermal, infrared, sonar, radar and seismic wave signals in the surrounding environment to detect temperature, humidity, noise, light intensity, pressure, soil composition, moving objec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/08H04L12/28
Inventor 谢磊朱红松徐勇军李晓维
Owner INST OF COMPUTING TECH CHINESE ACAD OF SCI
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