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Data encryption method and system adapted to communication of light type synchronous phasor measuring instrument

A technology for synchrophasor measurement and data encryption, which is used in public keys for secure communication, digital transmission systems, encryption devices with shift registers/memory, etc. Achieve the effect of preventing key leakage and cracking, ensuring security, and ensuring security

Inactive Publication Date: 2018-03-13
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the encryption process of RTU in the distribution network, the key is transmitted in plain text, and there is still a risk of key leakage, and it uses the "one-time-one-key" scheme, which is not suitable for transmitting real-time PMU Light data

Method used

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  • Data encryption method and system adapted to communication of light type synchronous phasor measuring instrument
  • Data encryption method and system adapted to communication of light type synchronous phasor measuring instrument
  • Data encryption method and system adapted to communication of light type synchronous phasor measuring instrument

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Embodiment Construction

[0053] The present invention will be further introduced below in conjunction with the accompanying drawings and specific embodiments.

[0054] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0055] The invention discloses a data encryption method suitable for communication of a light-duty synchronized phasor measuring instrument, comprising:

[0056] Provide distribution network synchrophasor data as messages;

[0057] Provide a randomly generated DES key;

[0058] Provide RSA public key and RSA private key randomly generated according to RSA encryption algorithm;

[0059] Encrypt the DES key using the RSA public key to generate an encrypted DES key;

[0060] Use described RSA private ...

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Abstract

The present invention proposes a data encryption method and system suitable for communication of light-duty synchrophasor measuring instruments, including: providing distribution network synchrophasor data as messages; providing randomly generated DES keys; providing random encryption based on the RSA encryption algorithm. Generated RSA public key and RSA private key; use the RSA public key to encrypt the DES key to generate an encrypted DES key; use the RSA private key and the RSA encryption algorithm to decrypt the encrypted DES key to generate The decrypted DES key; using the decrypted DES key to encrypt the message, and output the encrypted distribution network synchrophasor data. The invention has beneficial effects: it can not only realize the encryption and decryption of the data of the light-duty synchrophasor measuring instrument, but also ensure that the speed of encryption and decryption meets the time delay requirements of the light-duty synchrophasor measuring instrument, and can also realize the dynamic management of the key, and finally ensure that Communication security of lightweight synchrophasor measuring instrument data.

Description

technical field [0001] The invention relates to the field of communication security for synchronous phasor measurement in distribution networks, in particular to a data encryption method and system suitable for communication of light-duty synchronous phasor measurement instruments. Background technique [0002] After a large number of new energy sources such as wind power, photovoltaics, and electric vehicles are connected to the distribution network, the distribution network is no longer a pure load side, and its dynamic behavior is far more complicated than that of the transmission network. The Light Synchrophasor Measuring Unit (PMU Light) and the Light Wide Area Measurement System (WAMS Light) enable simultaneous monitoring of distribution networks. A large amount of real-time data collected by the light synchrophasor measuring instrument is transmitted to the data processing center through the network to realize functions such as data storage, online display, online dis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L9/30H04L9/08H04L9/06
CPCH04L63/0428H04L9/0625H04L9/0822H04L9/0869H04L9/302
Inventor 张恒旭曹本庆
Owner SHANDONG UNIV
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