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Computer file processing method

A file processing and computer technology, applied in the direction of digital data protection, platform integrity maintenance, etc., can solve the problem of unable to decrypt files and achieve the effect of improving security

Inactive Publication Date: 2013-09-25
李彬杰
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

At the same time, it may be necessary to use different base functions or base signals for recovery of different files. In this way, if a certain damaged file can be recovered through a specific method, we can also use this "destruction" method To encrypt the files that need to be protected, if you don’t know the specific file recovery method (for example, if you don’t know how to choose the base function or base frequency), you can’t decrypt the file

Method used

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Embodiment Construction

[0012] figure 1 The flow chart of the computer file processing method proposed by the present invention is shown in .

[0013] In step 110, the first file is converted into a first electrical signal.

[0014] In this step, the first file is first expressed in binary form, and then the binary form is modulated onto the electrical signal to form the first electrical signal. Wherein the first electrical signal may be converted by means of a digital signal controller (DSC).

[0015] In step 120, the first electrical signal is compressed proportionally in the frequency domain.

[0016] In this step, while compressing, the electric signal amplitude is also amplified proportionally, wherein the amplifying ratio and the compressing ratio are reciprocals of each other.

[0017] Specifically, the function of this step is to make the frequency point of the sudden change more prominent while keeping the area between the signal spectrum curve and the coordinate axis unchanged, so as to ...

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Abstract

The invention provides a computer file processing method which comprises the following steps: converting a first file to a first electrical signal; compressing the first electrical signal on a frequency domain according to proportion; filtering the first electrical signal after compression; expanding the electrical signal after filtering to a second electrical signal according to the proportion; and converting the second electrical signal to a second file. By adopting the method, the damaged computer files can be completely or partially recovered well, and the use of the method for recovering the files infected with computer virus and carrying out encryption and decryption on important files can greatly improve the security of the computer files.

Description

technical field [0001] The invention relates to a computer file processing method. Background technique [0002] Whether it is in daily production and life, or in the command and control of modern warfare, and information communication, computer technology plays an irreplaceable role in every tiny corner. People use computers to generate, transmit, process and store information and materials, which not only saves space, improves efficiency, but also enables files to be stored for a long time without being affected by the surrounding environment. While bringing benefits, how to prevent computer files from being destroyed has also become a problem that people are more and more concerned about, especially the existence of computer viruses, which brings unpredictable threats to people's work and life. As early as the end of the 1960s, the RAND Corporation of the United States submitted a report to the US Department of Defense, pointing out that computer security problems could ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/60G06F21/57
Inventor 李彬杰
Owner 李彬杰
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