Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for realizing data tampering detection of nonvolatile memory by adopting hybrid encryption algorithm

A non-volatile, hybrid encryption technology, applied in the field of protection against tampering and illegal copying, can solve the problems that the security and reliability of electric energy metering data cannot be fully guaranteed, and achieve the effect of ensuring reliability and security

Active Publication Date: 2020-06-26
JIANGSU LINYANG ENERGY CO LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Since the interface of the non-volatile memory is unified and it is an open pin, some users have illegally copied, tampered, removed and replaced the data in the memory through technical means to steal electricity, making the energy metering data safe. performance and reliability cannot be adequately guaranteed

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for realizing data tampering detection of nonvolatile memory by adopting hybrid encryption algorithm
  • Method for realizing data tampering detection of nonvolatile memory by adopting hybrid encryption algorithm
  • Method for realizing data tampering detection of nonvolatile memory by adopting hybrid encryption algorithm

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings. Although the preferred embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein.

[0030] Such as figure 1 , 2 As shown, the present invention provides a method for identifying abnormal data in a non-volatile memory using a hybrid encryption algorithm. The MCU of the electronic energy meter performs the following steps:

[0031] S1, MCU performs double backups of energy metering data regularly, one of which is stored in non-volatile memory, and the other is stored in the fixed storage address of FLASH in MCU;

[0032] The MCU uses the unique identification ID as the encryption factor K to encrypt the plaintext P to generate the key C, and store it in the non-volatile memory;

[0033] S2, M...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a method for identifying data exception of a nonvolatile memory by adopting a hybrid encryption algorithm, which comprises the following steps that: S1, an MCU (MicroprogrammedControl Unit) performs dual backup on electric energy metering data regularly, adopts a unique identification ID (Identity) as an encryption factor K to perform encryption operation on a plaintext P to generate a secret key C, and stores the secret key C; s2, the MCU scans and detects an I / O port of a nonvolatile memory in the electronic electric energy meter at regular time, and judges whether hardware of the nonvolatile memory is abnormal or not; s3, the MCU reads the secret key C of the fixed storage address of the nonvolatile memory at regular time, carries out secret key comparison and judges whether the data is tampered abnormally or not; and S4, the MCU triggers and monitors a clock signal of the nonvolatile memory, and judges an abnormal condition. By adopting the identification information generated by the encryption algorithm based on the hardware ID and the embedded software fault identification algorithm, the method ensures that the data in the electronic electric energy meter is legal and is not lost, and ensures the reliability and safety of data storage.

Description

Technical field [0001] The invention belongs to the technical field of data storage and security, and specifically relates to a method for identifying abnormal data in a non-volatile memory by adopting a hybrid encryption algorithm, and is suitable for the protection of data tampering and illegal copying of the non-volatile memory. Background technique [0002] Electronic energy meters are used as metering instruments for electricity charges in most countries. Due to the need for power outages and power outages in the power grid, the electronic energy meter must have one or more non-volatile memories to protect the metering data from being lost in the event of a power failure; [0003] Because the interface of the non-volatile memory is unified and the pins are open, some users use technical means to illegally copy, tamper, remove and replace the data in the memory and other power-stealing operations, so as to ensure the safety of the energy metering data. Performance and reliabil...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/64G06F21/60G06F21/79G06F11/14
CPCG06F21/64G06F21/602G06F21/79G06F11/1448G06F11/1469
Inventor 倪松张文凯陈爱华陆锋雷滕锋雷张国先
Owner JIANGSU LINYANG ENERGY CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com