Method and device for shredding files

A file and file recovery technology, applied in the computer field, can solve problems such as unrecoverable files, user troubles, smashing errors, etc.

Active Publication Date: 2018-06-22
CHINA STANDARD SOFTWARE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The traditional file deletion method is to delete the inode of the file, but the actual content of the file will still be saved in the disk
Therefore, there is a file shredding technology. The file shredding technology is to overwrite the content of the file on the disk with preset or random "0" and "1" characters, so that the file can no longer be recovered.
[0005] However, there is a problem in the existing file shredding technology. After the user shreds the file, it is found that the shredding is wrong, or it is found that the file is useful and should not be shredded, but the file cannot be recovered, which causes troubles to the user.

Method used

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  • Method and device for shredding files
  • Method and device for shredding files
  • Method and device for shredding files

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] The embodiment of the present invention provides a method for shredding files. The method for shredding files can be implemented in terminals such as PCs, mobile phones, and tablet computers by improving the existing shredding files, and can reduce the risk of file shredding caused by users mistakenly shredding files. problem of loss.

[0051] figure 1 It is a flowchart of a method for shredding files provided by an embodiment of the present invention, the method includes steps S102 to S108:

[0052] S102. Receive a shredding request from a user for a file to be shredded, and set a survival time for the file to be shredded.

[0053] S104, monitor whether a user recovery request for the file to be shredded is received within the survival time, if yes, perform step S106, if not, perform step S108.

[0054] S106. Restore the file to be shredded.

[0055] S108. Perform a shredding operation on the file to be shredded.

[0056] The embodiment of the present invention pro...

Embodiment 2

[0058] This embodiment is a specific application scenario of the first embodiment above. Through this embodiment, the method provided by the present invention can be described more clearly and specifically.

[0059] Wherein, the method for shredding files provided in this embodiment can provide a certain recovery possibility when the user accidentally deletes them, and can be implemented on various terminals. The method provided in the embodiments of the present invention will be described in detail below:

[0060] figure 2 It is a flow chart of a specific method for shredding files provided by an embodiment of the present invention. The method improves the existing method for shredding files, including steps S201 to S207.

[0061] First, step S201 is executed to receive a shredding request from a user for a file to be shredded.

[0062] In this embodiment, the method is described by taking the user intending to shred the file sys.doc as an example.

[0063] Preferably, in or...

Embodiment 3

[0115] image 3 It is a structural block diagram of a device for shredding files provided by an embodiment of the present invention. The device 300 includes:

[0116] A time setting module 310, configured to receive a shredding request from a user for a file to be shredded, and set a survival time for the file to be shredded;

[0117]A time monitoring module 320, configured to monitor whether a recovery request from a user for a file to be shredded is received within the survival time;

[0118] The file recovery module 330 is used to restore the file to be shredded when receiving a recovery request from the user for the file to be shredded within the survival time;

[0119] The file shredding module 340 is configured to perform a shredding operation on the file to be shredded when no recovery request from the user for the file to be shredded is received within the lifetime.

[0120] Preferably, the device 300 also includes:

[0121] The encryption module 350 is configured t...

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Abstract

The invention provides a method and a device for file smashing and belongs to the technical field of computers. The method includes receiving a smashing request, for a to-be-smashed file, of a user, and setting survival time for the to-be-smashed file; monitoring whether a restoring request, for the to-be-smashed file, of the user is received within the survival time or not; if yes, restoring the to-be-smashed file, and if not, executing a smashing operation on the to-be-smashed file. By the method and the device, the user can get buffering time for restoring a smashed file after the file is smashed, so that the problem that the smashed file cannot be restored due to misoperation of the user is avoided, and loss caused by the problem to the user is lowered.

Description

technical field [0001] The invention relates to the technical field of computers, in particular to a method and device for shredding files. Background technique [0002] In the current society, computer applications are becoming more and more extensive, and the security of files is getting more and more attention. In order to make files can be deleted more thoroughly, file shredding technology has appeared at present, and the file shredding technology is explained below: [0003] In general, when a file is stored on a disk, the file system manages the file. For each file, there will be an inode (index node), and the length, creation time, and location in the disk of the file are recorded in the inode. [0004] The traditional file deletion method is to delete the inode of the file, but the actual content of the file will still be saved in the disk. Therefore, there is a file shredding technology. The file shredding technology is to overwrite the content of the file on the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/62G06F17/30
CPCG06F16/162G06F21/6218
Inventor 谭一鸣徐宁朱健伟胡丹妮佀占华季鹏刘洋
Owner CHINA STANDARD SOFTWARE
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