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Wireless sensor network safety transmission method based on watermarking technology

A technology of wireless sensor network and watermarking technology, applied in the field of wireless sensor network security transmission, can solve the problems of slow progress and few, etc., and achieve the effects of less computational overhead, increased communication volume, and improved confidentiality and security.

Inactive Publication Date: 2012-12-05
SUZHOU LIANGJIANG TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are few studies on this kind of research at present, and the progress is slow, and there are not many articles on sensor network data watermarking at home and abroad.

Method used

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  • Wireless sensor network safety transmission method based on watermarking technology

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Embodiment Construction

[0035] Below in conjunction with accompanying drawing, the technical scheme of invention is described in detail:

[0036] Such as figure 1 As shown, a method for secure transmission of a wireless sensor network based on watermarking technology includes the following steps:

[0037] A method for secure transmission of a wireless sensor network based on watermark technology, comprising the steps of:

[0038] Step A: Clustering each node in the wireless sensor network according to the LANCH method;

[0039] Step B: Establish a sufficiently distributed key set, and pre-allocate the key according to the clustering situation of the nodes;

[0040] Step C: apply RC4 method to encrypt and decrypt data, and combine watermark technology to establish a secure communication link;

[0041] If each node in the cluster establishes secure communication with the cluster head, proceed to step C-1;

[0042] If the nodes in different clusters establish secure communication, proceed to step C-...

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Abstract

The invention relates to a wireless sensor network safety transmission method based on watermarking technology and belongs to the field of information safety of a wireless sensor network. The method is combined with the watermarking technology, improves a RC4 (Rivest cipher) algorithm, and includes steps of clustering nodes, establishing secret keys and predistributing the same, encrypting and decrypting data by the RC4 algorithm, setting threshold values, comparing the threshold values to sending data and sensing data, and determining embedded positions of watermarks according to parity of the last bit of the sensing data. Information transmission of the nodes in clusters is achieved by directly establishing a communication link with the nodes of cluster heads. Information transmission of the nodes among different clusters is achieved by establishing the communication link among the nodes of cluster heads. With the method, communication traffic of sensing nodes and use ratio of the nodes are improved, confidentiality and safety of sensing information are improved, and calculation of the nodes by a watermarking algorithm is low in cost.

Description

technical field [0001] The invention relates to a method for secure transmission of a wireless sensor network based on watermark technology, and belongs to the field of information security of the wireless sensor network. Background technique [0002] At present, the research on WSN security mechanism mainly focuses on other special security issues such as cryptography, key management, secure routing, intrusion detection and digital watermarking. [0003] The study found that by selecting the appropriate asymmetric cryptographic algorithm, reasonable parameters and optimization, it can be applied to a certain sensor network. However, whether it is a symmetric or asymmetric key, the key may be leaked when the node is captured, which will cause the entire network to be threatened. [0004] Digital watermarking technology is consistent with the data-centered characteristics of sensor networks, can be implemented with very low computing overhead and is suitable for the large-sc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W12/04H04W84/18H04W12/03H04W12/0431
Inventor 陈国庆张红
Owner SUZHOU LIANGJIANG TECH
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