A method for securely distributing grouped small data in wireless sensor networks

A wireless sensor and network grouping technology, applied in wireless communication, network topology, security devices, etc., to achieve the effect of ensuring energy balance and efficient management

Active Publication Date: 2019-07-26
EAST CHINA NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the shortcomings and deficiencies of the prior art, and provide a method for securely distributing grouped small data in a wireless sensor network. The present invention ensures that the impact on the entire network can be reduced when some nodes in the network are compromised. So that when some nodes in the network compromise, the entire network will not be paralyzed

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  • A method for securely distributing grouped small data in wireless sensor networks
  • A method for securely distributing grouped small data in wireless sensor networks

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Embodiment Construction

[0042] 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.

[0043] The implication that relevant technical term represents among the present invention is as follows:

[0044] K i,j Indicates the j-th data item of the i-th hash key chain, where j≥0;

[0045] P i Represents the original data of the i-th data item;

[0046] E. K (X) indicates that the data item X is encrypted symmetrically with the symmetric key K;

[0047] D. K (X) indicates that the data item X is decrypted with the symmetric key K;

[0048] H(.) represents a one-way key hash function;

[0049] H(M) represents the hash value of data item M;

[0050] K i,j In...

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Abstract

The invention discloses a method for securely distributing grouped small data of a wireless sensor network, comprising: base station groups nodes according to the number of hops from the node to the base station; the base station randomly selects random numbers of the same quantity, and generates a one-way hash for each group chain, and store the directional hash value of each hash chain on the corresponding grouping node; the base station preprocesses the data packet to be sent, and uses the directional hash value on the hash chain to its precursor value on the chain Perform encryption processing; combine the data packet and the precursor value to obtain the combined hash value, and add parameters used to represent the life cycle of the data packet to construct the data packet to be transmitted; the sensor node verifies the data packet, according to the node The group analyzes the data packet and verifies its legitimacy. If the data packet belongs to other groups, it will directly forward the data packet; if the data packet is a legal data packet, it will accept the data packet and update the corresponding data item of the node. ; Otherwise delete the packet directly.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and in particular relates to a method for safely distributing grouped small data of a wireless sensor network. Background technique [0002] Wireless Sensor Networks (WSN) is a multi-hop self-organizing network composed of a group of resource-constrained sensor nodes, which is widely used in key fields such as medical health, habitat environment, greenhouse and military. Once the sensor nodes are deployed in the corresponding environment, it is difficult to collect these nodes. However, in practical applications, some important parameters often need to be adjusted, and the cost of manually modifying the relevant parameters of these sensor nodes and updating the codes is huge. Therefore, in WSN, the design of small data distribution protocol is very critical. [0003] There are already many well-designed small data distribution protocols in WSN, such as DRIP, DHV, DIP, etc. The sm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W12/06H04W84/18H04W12/03H04W12/041
CPCH04W12/06H04W84/18
Inventor 何道敬陈得鹏
Owner EAST CHINA NORMAL UNIV
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