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Electric energy meter firmware program upgrading method and device based on ESAM, medium and equipment

A firmware program and electric energy meter technology, which is applied to electrical components, software deployment, and electrical signal transmission systems, can solve problems such as repeated resource application attacks, electric energy meter data tampering, illegal code attacks, etc. missing effect

Active Publication Date: 2021-04-20
GUANGDONG ELECTRIC POWER SCI RES INST ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides an ESAM-based method, device, medium and equipment for upgrading the firmware program of electric energy meters, which are used to solve the problems of information interception, illegal code attack, repeated upgrade attack, and resource repeated application attack in the process of upgrading the existing electric energy meter firmware program , Energy meter data tampering and other technical issues of abnormal attacks

Method used

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  • Electric energy meter firmware program upgrading method and device based on ESAM, medium and equipment
  • Electric energy meter firmware program upgrading method and device based on ESAM, medium and equipment
  • Electric energy meter firmware program upgrading method and device based on ESAM, medium and equipment

Examples

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Embodiment 1

[0047] figure 1 It is a flow chart of the steps of the method for upgrading the firmware program of the electric energy meter based on the ESAM described in the embodiment of the present invention.

[0048] Such as figure 1 As shown, the embodiment of the present invention provides a method for upgrading the firmware program of an electric energy meter based on ESAM, comprising the following steps:

[0049] S10. Perform identity authentication between the master station and the electric energy meter. If the identity authentication is passed, the master station will send the upgrade file information to the electric energy meter in a single point;

[0050] S20. The energy meter receives the upgrade file information and performs MAC verification after decrypting the upgrade file information;

[0051] S30. If the upgrade file information passes the MAC verification, the master station transmits the upgrade data packet of the firmware program to the electric energy meter by broad...

Embodiment 2

[0089] image 3 It is a frame diagram of an ESAM-based electric energy meter firmware program upgrading device described in an embodiment of the present invention.

[0090] Such as image 3As shown, the embodiment of the present invention also provides an ESAM-based electric energy meter firmware program upgrade device, including an identity authentication module 10, an information verification module 20, a file transfer module 30 and a firmware upgrade module 40;

[0091] The identity authentication module 10 is used for identity authentication between the master station and the electric energy meter. If the identity authentication is passed, the master station single-point transmits the upgrade file information to the electric energy meter;

[0092] The information verification module 20 is used for the energy meter to receive the upgrade file information and perform MAC verification after the upgrade file information is decrypted;

[0093] The file transfer module 30 is u...

Embodiment 3

[0098] An embodiment of the present invention provides a computer-readable storage medium. The computer storage medium is used to store computer instructions. When running on a computer, the computer executes the above ESAM-based method for upgrading the firmware program of the electric energy meter.

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Abstract

The embodiment of the invention relates to an electric energy meter firmware program upgrading method and device based on ESAM, a medium and equipment. The method comprises: transmitting upgrading file information through identity authentication of a master station and an electric energy meter, and encrypting and decrypting the upgrading file information transmitted by the master station and the upgrading file information received by the electric energy meter by adopting an ESAM security module; after ensuring that only after the electric energy meter receives legal and correct upgrading file information, the main station transmitting an upgrading data packet to the electric energy meter, firmware program upgrading can be conducted only after the electric energy meter decrypts the upgrading data packet and passes verification, integrity and reliability checking of the upgrading data packet is achieved, data loss of the upgrading data packet is avoided. The firmware program of the electric energy meter cannot be upgraded, and the risks of abnormal attacks such as information interception, illegal code attacks, repeated upgrading attacks, repeated resource application attacks and electric energy meter data tampering in the upgrading process are avoided.

Description

technical field [0001] The invention relates to the technical field of meter data security, in particular to an ESAM-based firmware program upgrade method, device, medium and equipment for electric energy meters. Background technique [0002] At present, the security module and associated key management of the main station are added to the centralized reading system of electric energy meters. The main station sends the upgrade package data processed by the asymmetric encryption algorithm to the concentrator, and the main station sends the broadcast key to the electric energy meter. The concentrator broadcasts and sends the upgrade package data of the energy meter to the energy meter. After receiving the upgrade data package, the energy meter performs an asymmetric algorithm to verify the legitimacy of the data, and receives the upgrade package one by one until all the upgrade packages are received. The energy meter also passes the asymmetric The algorithm verifies the legali...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L29/08G08C19/00G06F8/65
Inventor 曾争霍梓航张思建张晓平陈小乔林国营王鹏
Owner GUANGDONG ELECTRIC POWER SCI RES INST ENERGY TECH CO LTD
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