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A computer privacy data clearing method based on an external memory

A technology for data removal and privacy data, applied in the direction of digital data protection, can solve problems such as insecurity, and achieve the effect of ensuring security

Inactive Publication Date: 2019-06-28
SHANGHAI WANWUXINSHENG ENVIRONMENTAL PROTECTION TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Returning the computer after resignation, or cleaning up the computer data by IT administrators and classmates, or selling the idle computer, it is necessary to thoroughly clean up the computer data; the endless "Pornographic" incidents at home and abroad tell us that data is very dangerous if it is not completely destroyed
However, it is not safe to delete data, empty the recycle bin or even format the disk, and the deleted data still has a high risk of being recovered

Method used

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  • A computer privacy data clearing method based on an external memory
  • A computer privacy data clearing method based on an external memory
  • A computer privacy data clearing method based on an external memory

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0037] See figure 1 , shows an exemplary flow chart of a method for clearing computer privacy data based on an external memory according to a first embodiment of the present invention. As shown in the figure, the method for clearing computer privacy data based on an external memory mainly includes the following steps:

[0038] Step S10: Connect the external memory to the computer through the external interface of the computer, and the data clearing system is stored in the external memory;

[0039] Step S20: Turn on the power of the computer, and choose to start the computer from the data clearing system of the external memory;

[0040] Step S30: Extract the hard disk information of the computer under the data clearing system of the external memory;

[0041] Step S40: delete the extracted hard disk information;

[0042] Step S50: Generate fictitious random information and overwrite to the position of the deleted hard disk information;

[0043] Step S60: After repeating the o...

Embodiment 2

[0049] See image 3 , shows an exemplary flow chart of a method for clearing private data of a computer based on an external memory according to a second embodiment of the present invention. As shown in the figure, the method for clearing private data of a computer based on an external memory mainly includes the following steps:

[0050] Step S10': Connect the external memory to the computer through the external interface of the computer, and the data clearing system is stored in the external memory;

[0051] Step S20': Turn on the power of the computer, select to start the computer from the data clearing system of the external memory;

[0052] Step S30': Extract the hard disk information of the computer under the data clearing system of the external memory;

[0053] Step S40': delete the extracted hard disk information;

[0054] Step S50': set data clearing parameters, set the number of coverages and / or the format of random data;

[0055] Step S60': generate fictitious rando...

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Abstract

The invention discloses a computer privacy data clearing method based on an external memory, which comprises the following steps: connecting the external memory to a computer through a computer external interface, and storing a data clearing system in the external memory; Starting a computer power supply, and selecting a data clearing system from an external memory to start the computer; Extracting hard disk information of the computer under the data clearing system; Deleting the extracted hard disk information; Generating virtual random information, and covering the virtual random informationto the position of the deleted hard disk information; And after covering is repeated for multiple times, completing clearing of privacy data. According to the invention, a data repeated erasing and writing mode is adopted, private data in the computer hard disk is covered by using random data; restoration of privacy data is avoided, the data clearing system is stored in the external memory, the external memory is used at any time in a plug-and-play mode, convenience is achieved, after data clearing is completed, the data clearing system can be cleared from a computer by pulling out the external memory, and no trace is left truly.

Description

technical field [0001] The invention relates to the technical field of data clearing, in particular to a method for clearing computer privacy data based on an external memory. Background technique [0002] When resigning and returning computers, or IT administrators clearing computer data into storage, or selling idle computers, it is necessary to thoroughly clean up computer data; the endless "pornographic" incidents at home and abroad tell us that data is not completely destroyed. It is very dangerous. However, it is not safe to delete data, empty the recycle bin or even format the disk, and the deleted data still has a high risk of being recovered. Then, how to completely clear computer data without leaving a trace, or even eliminate the threat of being restored by criminals, has become a top priority for computer recycling and reuse. Contents of the invention [0003] In view of this, the embodiment of the present invention provides a computer privacy data removal met...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/62
Inventor 常树林咸睿单志锋
Owner SHANGHAI WANWUXINSHENG ENVIRONMENTAL PROTECTION TECH GRP CO LTD
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