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Distribution safety authentication device and method

A technology of power distribution safety certification and safety certification, applied in the field of power distribution safety certification devices, can solve the problems of key security management security risks, SM2 certificate validity and security have not been verified, etc.

Inactive Publication Date: 2014-06-25
STATE GRID CORP OF CHINA +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing power distribution security authentication devices are based on bare public keys, the validity and security of SM2 certificates have not been verified, and there are important security risks for key security management

Method used

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  • Distribution safety authentication device and method
  • Distribution safety authentication device and method
  • Distribution safety authentication device and method

Examples

Experimental program
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Embodiment Construction

[0033] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0034] see figure 1 , the power distribution safety authentication device provided by the present invention is located inside the power distribution terminal, adopts the one-way authentication and encryption technology based on asymmetric keys, and realizes the security authentication of the remote control message sent by the master station to the power distribution terminal, and checks The public key message is used for security authentication, inspection and generation of uplink response message.

[0035] see figure 2 , the power distribution safety authentication device preferably adopts a smart card security chip, including a communication management module, a protocol analysis module, an encryption and decryption module, a security authentication module, a file management module, a certificate verification module and a main con...

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PUM

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Abstract

The invention discloses a distribution safety authentication device and a method. The distribution safety authentication device comprises a communication management module, a protocol parsing module, a safety authentication module, a file management module, a certificate verification module and a master control module. The communication module receives messages and transmits the messages to the protocol parsing module for parsing the protocol; and the parsed message is transmitted to the safety authentication module after decryption processing by the decryption module; the safety authentication module performs safety authentication on the decrypted message. If the transmitted message is a distribution safety management message, the certificate authentication module is invoked to perform validity versification on the certificate, and if the message is a remote control message, the master control module returns response information according to the authentication result after validity verification. The invention integrates a distribution safety authentication decrypted protocol, realizes parsing of the protocol and validity verification, and provides unified, easy, highly efficient and reliable distribution safety authentication service to the distribution terminal.

Description

technical field [0001] The invention relates to a power distribution safety certification device, and also relates to a power distribution safety certification method based on the device, which belongs to the technical field of power distribution automation. Background technique [0002] At the beginning of 2011, in order to ensure the safe and stable operation of the distribution network, the State Grid Corporation further detailed the "Safety Protection Plan for the Secondary Power System" in the "Overall Plan for the Safety Protection of the Secondary Power System" (Dianjian Safety [2006] No. 34) The "Supplementary Regulations on the Safety Protection of Medium and Low Voltage Distribution Automation Systems" (State Grid Tiao [2011] No. 168) was formulated and issued, and the notice clarified the downlink transmission from the main station and substations of the distribution automation system to the distribution terminals. Control instructions should use asymmetric key-ba...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L9/32H02J13/00
CPCY04S40/20
Inventor 林昌年马力冯斌张鹏章健李钊魏明达张毅马晓伟
Owner STATE GRID CORP OF CHINA
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