A data file protection method and device

A data file and file technology, which is applied in the field of information security, can solve problems such as leaks, and achieve the effects of improving security, preventing data leaks, and preventing memory DUMP

Active Publication Date: 2017-07-07
BEIJING SENSESHIELD TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] In view of this, the present invention provides a data file protection method and device to solve the information leakage caused by random copying of data files, viruses, Trojan horses, etc. in daily use, and can improve security.

Method used

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  • A data file protection method and device
  • A data file protection method and device
  • A data file protection method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0107] Figure 4 It is a schematic flowchart of Embodiment 1 of the data file protection method according to the present invention.

[0108] see Figure 4 , the operating system of this embodiment is Windows, and the data files to be protected include text files: a.txt, b.txt, and the default application program associated with .txt in the Windows operating system is NOTEPAD.EXE (ie, Notepad program). According to an embodiment of the present invention, the protection method of this data file comprises:

[0109] 1. Set the device to obtain the application path associated with the data file from the Windows system registry according to the file type of the data file to be protected, such as (C:\Windows\System32\NOTEPAD.EXE);

[0110] 2. Set the device to write the data file and associated application program (NOTEPAD.EXE) into the hidden area of ​​the U disk dongle;

[0111] 3. Set the device to generate the mapping icon and mapping table of the data file in the U disk encry...

Embodiment 2

[0117] Figure 5 It is a schematic flowchart of Embodiment 2 of the data file protection method according to the present invention.

[0118] see Figure 5 , the difference between embodiment 2 and embodiment 1 is step 1, step 1 of this embodiment is:

[0119] 1. Set the device to download commonly used applications associated with the file type of the data file (such as the NOTEPAD.EXE program associated with .txt, the WINWORD.EXE program associated with .doc, etc.) to the specified folder in advance, for example, C :\Windows\System32\, set the device to automatically select the associated application from the specified folder according to the data files to be protected.

[0120] In this embodiment, the associated application program is automatically selected from the specified folder, including a mapping table in the specified folder. The mapping table stores the mapping table of the file type and the associated application program, and the device is set to automatically sele...

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Abstract

The invention discloses a protecting method and device for data files. According to the protecting method and device for the data files, data files to be protected and related application programs thereof are written into a USB flash disk encryption lock hidden area, only mapping icons of the data files are stored in a public area, when the mapping icons of the data files are double clicked, monitoring and actuating equipment reads the data files in the hidden area according to the mapping icons, the content information of the related application programs are read from the hidden area according to the file types of the data files, the application programs are run in a debugger mode, and the data files are opened through the application programs. Through the protecting method for the data files, information leakage caused by optional copying, Trojan horse viruses and the like on the data files can be prevented, internal storage DUMP can be prevented, difficulty of debugging and breaking can be enlarged, and safety can be improved.

Description

technical field [0001] The invention relates to the field of information security, in particular to a data file protection method and device. Background technique [0002] U disk (USB Flash Disk), the full name of USB flash drive. It is a miniature high-capacity mobile storage product that uses a USB interface and does not require a physical drive. It is connected to a computer through a USB interface to achieve plug and play. Because the U disk has the characteristics of small and exquisite, easy to carry, large storage capacity, fast speed, and small size, it is more and more widely used in daily life and work. [0003] Ordinary U disk is a transparent mobile storage media device, there is no access control for data access, as long as the access party with USB interface can use it without hindrance. Therefore U-disk brings convenience to people, but also brings an important problem: information leakage. [0004] The reasons for U disk information leakage mainly include:...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/60G06F21/78
CPCG06F21/79
Inventor 孙吉平韩勇
Owner BEIJING SENSESHIELD TECH
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