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A power data encryption method and device based on chaotic sequence and national secret algorithm

A chaotic sequence and power data technology, applied in encryption devices with shift registers/memory, secure communication through chaotic signals, secure communication devices, etc., can solve the problems of high security risks and low proportion of information security reinforcement measures, and achieve Improve safety, achieve autonomous controllability, and ensure the effect of chaotic characteristics

Active Publication Date: 2021-03-30
HUBEI INFOTECH SYST TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current grid power data use information security reinforcement measures are not high, and generally use international general encryption algorithms such as MD5, RSA, and face high security risks

Method used

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  • A power data encryption method and device based on chaotic sequence and national secret algorithm
  • A power data encryption method and device based on chaotic sequence and national secret algorithm
  • A power data encryption method and device based on chaotic sequence and national secret algorithm

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Embodiment Construction

[0022] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0023] refer to figure 1 , in the first aspect of the present invention, a power data encryption method based on a chaotic sequence and a national secret algorithm is provided, including the following steps: S101. Obtain and serialize the power data to be encrypted; Perform wavelet transformation on the data to obtain several high-frequency sequences and several low-frequency sequences, and record the high-frequency sequences and low-frequency sequences as the first sequence and the second sequence respectively; S102. Randomly select two kinds of one-dimensional chaotic maps, The chaotic map is disturbed; the respective sequences are generated according to the two kinds of one-dimensional chaotic maps and the distur...

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Abstract

The invention relates to a power data encryption method and device based on a chaotic sequence and a national secret algorithm. The method includes: obtaining power data to be encrypted and serializing it; performing wavelet transformation on the serialized power data to obtain several high-frequency sequence and several low-frequency sequences, record the high-frequency sequence and low-frequency sequence as the first sequence and the second sequence respectively; randomly select two kinds of one-dimensional chaotic maps, and disturb the one-dimensional chaotic maps; The chaotic map and the perturbed chaotic map are combined, and the two candidate chaotic sequences with the largest Lyapunov exponent are selected as the second chaotic sequence; the first sequence and the second sequence are modulated according to the second chaotic sequence, sampling rate and SM4 algorithm , Composite to obtain the spread spectrum sequence; use the SM2 algorithm to sign or verify the spread spectrum sequence. The invention improves the randomness and uniformity of the ciphertext through the wavelet transformation and the chaotic sequence, and further improves the security of the data through the national secret algorithm.

Description

technical field [0001] The invention belongs to the field of electric power data and encryption, and in particular relates to an electric power data encryption method and device based on a chaotic sequence and a national secret algorithm. Background technique [0002] With the development of the grid towards intelligence, the application of communication electronic equipment in the grid is also more extensive. As an important part of the power transmission and distribution system, smart substations need to realize more and more communication and control functions. The continuous progress of computer and communication technology has also promoted the digitalization, informationization and intelligent development of substations. The continuous development of smart grid has broadened the scope of power security technology, and the application of communication technology in the power field has become more and more extensive. Therefore, information security has gradually become ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/00H04L9/06H04L27/00H04L29/06H04B1/713
CPCH04B1/713H04L9/001H04L9/065H04L27/001H04L63/0428
Inventor 易国华程国兵易成君杨军徐辉
Owner HUBEI INFOTECH SYST TECH CO LTD
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