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Data protection device and method, and storage controller

A technology for data protection and protection devices, applied in the fields of storage controllers and data protection devices, can solve problems such as user information security threats, and achieve the effects of improving security, providing cracking difficulty, and realizing content protection

Pending Publication Date: 2017-04-26
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the data stored in NOR FLASH is relatively easy to be deciphered and analyzed, and crackers can obtain important user data, which poses a threat to user information security. Therefore, it is necessary to protect the system software and data stored in NOR FLASH to meet Safety requirements

Method used

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  • Data protection device and method, and storage controller
  • Data protection device and method, and storage controller
  • Data protection device and method, and storage controller

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Embodiment Construction

[0030] The present invention will be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the invention are illustrated. The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention. The technical solution of the present invention will be described in various aspects below in conjunction with various figures and embodiments.

[0031] The "first", "second" and so on in the following are only used to describe the difference, and have no other special meanings.

[0032] Such ...

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Abstract

The invention discloses a data protection device, a data protection method and a storage controller and relates to the technical field of data protection. The device comprises an encryption unit and a decryption unit, wherein the encryption unit is used for receiving first data of a to-be-written storage module and first storage address information and encrypting the first data based on the first storage address information and characteristic information of a storage module; and the decryption unit is used for reading second data corresponding to second storage address information from the storage module and decrypting the second data based on the second storage address information and the characteristic information. According to the data protection device, the data protection method and the storage controller, write data and read data are encrypted and decrypted based on a storage address and the characteristic information of the storage module, the security of data in the storage module can be improved; after the storage module executes an erasure operation, the read data do not carry information of a decrypted module, the password cracking difficulty can be effectively increased, the content protection is realized; and the data protection device and the data protection method are high in reliability and wide in application range.

Description

technical field [0001] The present invention relates to the technical field of data protection, in particular to a data protection device, method and storage controller. Background technique [0002] At present, with the development of electronic technology, embedded systems are widely used in electronic products. Flash memory (flash memory) is a non-volatile memory that retains data for a long time even when there is no current supply. Flash is divided into NOR (or not) type and NAND (and not) type. For example, as a storage device, NOR FLASH is used to store system software and important application data, and is widely used in MCU (Microcontroller Unit) and large SOC (System on Chip). For MCU applications, NOR FLASH can be integrated into the entire MCU chip. For SOC applications, NOR FLASH is usually hung outside the SOC as a peripheral. NOR FLASH internally stores system startup software and related application software, etc. After booting, the system first starts fro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/79
CPCG06F21/79H04L9/0894H04L9/0866H04L9/0869H04L2209/12G06F21/602H04L9/0625H04L9/0631
Inventor 温浪明刘浩陈恒张浩亮方励
Owner GREE ELECTRIC APPLIANCES INC
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