Security small-data distribution method in wireless sensor network based on short and small public key cryptosystem

A public key cryptography system and wireless sensor technology, applied in the field of wireless sensor network security small data distribution, can solve the problems of sensor network denial of service attacks, energy loss of sensor nodes, etc., and achieve network bandwidth saving, energy consumption and fast calculation Effect

Inactive Publication Date: 2017-05-31
EAST CHINA NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Although the signature verification fails, this still consumes the energy of the sensor nodes, which easily causes the sensor network to fall into a denial of service attack

Method used

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  • Security small-data distribution method in wireless sensor network based on short and small public key cryptosystem
  • Security small-data distribution method in wireless sensor network based on short and small public key cryptosystem
  • Security small-data distribution method in wireless sensor network based on short and small public key cryptosystem

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Embodiment Construction

[0049] The present invention will be further described in detail with reference to the following specific embodiments and accompanying drawings. Except for the content specifically mentioned below, the process, conditions, experimental methods, etc. for implementing the present invention are all common knowledge and common knowledge in the field, and the present invention is not particularly limited.

[0050] The relevant technical terms in the present invention represent the following meanings:

[0051] (SIG k (M)) represents the digital signature after the information M is signed with the private key K;

[0052] (E k (M)) represents the ciphertext information that is symmetrically encrypted with the symmetric key K to the information M;

[0053] H(.) represents a secure hash algorithm;

[0054] H(M) represents the hash value of the data item M;

[0055] || represents the join operation.

[0056] The following describes the small data distribution steps of the present i...

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Abstract

The invention discloses a security small-data distribution method in a wireless sensor network based on a short and small public key cryptosystem. The security small-data distribution method comprises the following steps: in a system initialization stage, a base station constructs an elliptical curve cryptographic algorithm, generates a private key, a public key, a one-way key chain and public key ciphertext information, and loads the processed one-way key chain and public key ciphertext information in sensor nodes before the sensor network is deployed; before data items are distributed, the base station generates a data packet by adopting a message-confusing technology and a digital signature technology according to the data items needing to be distributed; after the various nodes receive the data packet, the validity of the data packet is judged; if the data packet is the valid data packet, the data packet is accepted and updated; and otherwise, the data packet is directly abandoned. By means of the security small-data distribution method disclosed by the invention, the sensor network has the following advantages: compromise of the sensor nodes can be resisted; the information integrity and reliability are ensured; time synchronization among the base station and the sensor nodes is unnecessary; the robustness is high in packet loss and data packet transmission out-of-sequence; the efficiency is high; energy can be saved; denial of service attacks can be effectively resisted, etc.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, in particular to a wireless sensor network security small data distribution method based on a short public key cryptosystem. Background technique [0002] At present, the distribution of wireless sensor networks is very wide, and the applications are also diverse, including environmental monitoring, battlefield surveillance and data acquisition in harsh geographical environments. In wireless sensor networks, being able to distribute small amounts of data across the network is a useful operational feature. It allows the base station to write some small programs, commands, queries and configuration parameters to the sensor nodes. It should be emphasized that the small data distribution protocol is different from the code distribution (sometimes also called data distribution or reprogramming) protocol that has been studied intensively. Code distribution is the distribution of new bi...

Claims

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Application Information

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IPC IPC(8): H04W12/02H04W12/04H04W12/12H04L9/30H04L9/32H04L9/08H04L9/06H04L9/00H04L29/06H04W84/18H04W12/041H04W12/0431H04W12/128
CPCH04L9/002H04L9/0643H04L9/0822H04L9/0869H04L9/3066H04L9/3252H04L63/126H04L63/1458H04W12/02H04W12/04H04W12/12H04W84/18Y02D30/70
Inventor 何道敬王岩
Owner EAST CHINA NORMAL UNIVERSITY
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