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A method and device for reading data in a storage device

A storage device and data reading technology, which is applied in the direction of preventing unauthorized use of memory, etc., can solve problems affecting the data security of storage devices, and achieve strong usability and practicality, and the effect of safely reading protected data

Active Publication Date: 2016-10-26
SHENZHEN NETCOM ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the embodiments of the present invention is to provide a method and device for reading data in a storage device, so as to solve the problem of reading or duplicating data by canceling the anti-copy function of the storage device in the prior art, which affects the protected data in the storage device. Data Security Issues

Method used

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  • A method and device for reading data in a storage device
  • A method and device for reading data in a storage device
  • A method and device for reading data in a storage device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] figure 1 The implementation flow of the data management method in the flash storage device provided by Embodiment 1 of the present invention is shown, and the process of the method is described in detail as follows:

[0021] In step S101, the input table information corresponding to the file reading application program of the storage device is modified.

[0022] In this embodiment, the file reading application program is an EXE file, the input table is a part of the file structure of the file reading application program, and a dynamic link library (Dynamic Link Library, DLL) file import function address. It should be noted that the function imported according to the address of the imported function will not be directly executed, only after the file is read by the application program and mapped to the memory of the host system, the operating system of the host system will import the corresponding DLL file, so The file reading application program finds the imported func...

Embodiment 2

[0042] figure 2 The composition structure of the data reading device in the storage device provided by the second embodiment of the present invention is shown, and for the convenience of description, only the parts related to the embodiment of the present invention are shown.

[0043] The data reading device in the storage device can be applied to each storage device, and it can be a software unit, a hardware unit, or a combination of software and hardware running in the storage device, or it can be integrated into the storage device as an independent pendant or run In the application system of the storage device.

[0044] The data reading device in the storage device includes an information modification unit 21 and a data reading unit 22, wherein:

[0045] An information modification unit 21, configured to modify the input table information corresponding to the file reading application of the storage device;

[0046] The data reading unit 22 is configured to call a custom fu...

Embodiment 3

[0056] image 3 The composition structure of the storage device provided by the third embodiment of the present invention is shown, and for the convenience of description, only the parts related to the embodiment of the present invention are shown.

[0057] like image 3 As shown, the storage device 3 includes a main control chip 31 , an I / O control chip 32 and a flash memory 33 .

[0058] The main control chip 31 is used to modify the input table information corresponding to the file reading application program of the storage device.

[0059] The I / O control chip 32 is used for receiving an instruction for reading protected data, and sending the instruction to the main control chip 31 . After the main control chip 31 receives the instruction to read the protected data sent by the I / O control chip 32, according to the modified input table information, it calls a self-defined function for reading the protected data from the flash memory 33 , so that the function reads the pr...

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Abstract

The present invention is applicable to the technical field of data storage of storage devices, and provides a method and device for reading data in storage devices. The method includes: modifying the input table information corresponding to the file reading application program of the storage device; When reading the instruction of protected data, according to the modified information of the input table, a user-defined function for reading protected data is called, so that the function reads the protected data through a private command. The invention can directly read the protected data in the storage device without canceling the anti-copy function of the storage device.

Description

technical field [0001] The invention belongs to the technical field of data processing of storage devices, and in particular relates to a method and device for reading data in storage devices. Background technique [0002] Existing storage devices, such as U disk, SD card, MMC card, CF card, etc., in order to prevent certain protected data (such as map data provided by GPS navigation device publishers, learning data provided by learning machine manufacturers or mobile game distribution) The game data provided by the provider, etc.) is read or copied by unauthorized users, which damages the interests of the protected data publisher, so the existing storage devices usually have a copy-proof function. [0003] However, when the copy protection function of the storage device is cancelled, any user can read or copy the protected data in the storage device, affecting the security of the protected data in the storage device. Contents of the invention [0004] The purpose of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F12/14
Inventor 豆威
Owner SHENZHEN NETCOM ELECTRONICS CO LTD