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A secure lightweight reprogramming method for wireless sensor networks

A wireless sensor and network security technology, which is applied in wireless communication, network topology, security devices, etc., can solve the problems of endangering program mirroring security, software installation correctness, normal use of the network, etc., to achieve efficient denial of service attacks and prolong life cycle Effect

Active Publication Date: 2019-05-17
EAST CHINA NORMAL UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These attacks will seriously endanger the confidentiality of the program image, the correctness of software installation and the normal use of the network.

Method used

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  • A secure lightweight reprogramming method for wireless sensor networks
  • A secure lightweight reprogramming method for wireless sensor networks
  • A secure lightweight reprogramming method for wireless sensor networks

Examples

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Embodiment Construction

[0043] The present invention will be further described in detail in conjunction with the following specific embodiments and accompanying drawings. The process, conditions, experimental methods, etc. for implementing the present invention, except for the content specifically mentioned below, are common knowledge and common knowledge in this field, and the present invention has no special limitation content.

[0044] The implication that relevant technical term represents among the present invention is as follows:

[0045] K i,j Indicates the jth data item of the i-th one-way hash chain, where j≥0;

[0046] Pt i,j Indicates the j-th data item of the i-th page;

[0047] C(m,n) represents a combination number, that is, the number of methods for selecting n elements from m elements;

[0048] E(X,K) means that the data item X is encrypted symmetrically with the symmetric key K;

[0049] D(X,K) means to decrypt the data item X with the symmetric key K;

[0050] H(.) represents ...

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Abstract

The invention discloses a wireless sensor network security lightweight reprogramming method, including: system initialization stage: the base station groups the original data packets corresponding to the positions of each page to be sent, and according to the number of pages and the data contained in each page The base station generates multiple one-way hash chains as keys, and stores the directional hash value of each one-way hash chain on each sensor node; the base station generates a public key and a private key, and The public key is installed on each sensor node; the data packet preprocessing stage: the base station preprocesses the data packet to be sent, uses the method of encoding first and then encrypting to construct the encrypted data packet and the Merkle hash tree, and then sends the data packet in turn; the data packet Verification stage: After each sensor node receives the data packet, decrypts and verifies the data packet, decodes each data packet to restore the original data packet, and accepts the original data after judging the validity of the received data packet Bag.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, in particular to a safe and lightweight reprogramming method for a wireless sensor network. Background technique [0002] Wireless Sensor Networks (WSNs) is a network composed of many sensor nodes, which has very important applications in key fields such as medical care, environmental detection, and military affairs. Once the sensor nodes are deployed in some specific fields, it is difficult to manually repair some bugs on the nodes or update and install some software on a large scale. Therefore, it is necessary to use the reprogramming protocol to reprogram the nodes in the sensor massive reprogramming. [0003] The existing reprogramming protocols and methods focus on the reliability of program image distribution. In the first stage of program image distribution, the sensor node first periodically broadcasts its summary information about the program image. When the node receive...

Claims

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Application Information

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IPC IPC(8): H04W12/12H04W84/18H04W12/041H04W12/0433
CPCH04W12/12H04W84/18
Inventor 何道敬陈得鹏黄琳
Owner EAST CHINA NORMAL UNIVERSITY
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