Private format file processing method, electronic equipment and medium

A technology of electronic equipment and format files, which is applied in the direction of digital data protection, etc., can solve the problems of inability to process files and inability to distinguish files, and achieve the effects of preventing malicious cracking and obtaining, facilitating traceability, and preventing illegal modification

Pending Publication Date: 2022-04-12
上海纬百科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For some operating systems, if there is no extension in the file name, then the operating system cannot process the file and cannot determine what to do with the file

Method used

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  • Private format file processing method, electronic equipment and medium
  • Private format file processing method, electronic equipment and medium
  • Private format file processing method, electronic equipment and medium

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Embodiment Construction

[0045] In order to clearly and completely describe the technical solution of the present application, further description will be given below in conjunction with the embodiments and accompanying drawings.

[0046] For some specific software, users often need to purchase a license from the software developer in order to be able to use the software legally and normally. The corresponding privatized format files can only be opened and edited by these specific software, which protects the contents of these privatized format files to a certain extent. Especially for ordinary software users, it is difficult to obtain some useful content from privatized format files. However, for some technically capable attackers, they may be able to crack the privatized format file and obtain valuable content from it. To this end, the embodiment of the present application proposes a processing method for files in a privatized format, which can better protect files in a privatized format.

[0047]...

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PUM

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Abstract

The invention discloses a method and equipment for processing a file in a privatized format. The method is applied to the electronic equipment and comprises the steps that a first operation for a first file is received, the first file is a privatized format file and located in a memory of the electronic equipment, and the first operation is used for instructing specific software to store the first file; encrypting the first data through the encryption lock to obtain second data, the first file including the first data; signing the first data based on an equipment private key in the encryption lock to obtain fourth data; wherein the device private key corresponds to a developer of the specific software associated with the privatized format file; and persistently storing a second file comprising the second data, the fourth data and the certificate chain. By adopting the implementation mode, the user can open, edit and store the file in the privatized format only under the condition that the user can legally use the specific software and hold the specific encryption lock capable of decrypting the file in the privatized format, so that the content of the file can be prevented from being maliciously acquired.

Description

technical field [0001] The present application relates to the technical field of file processing, in particular to a method for processing files in a privatized format. In addition, the present application also relates to an electronic device and a computer-readable storage medium. Background technique [0002] In some systems, such as Windows systems, files can be divided into many types according to different formats and purposes. For the convenience of management and identification, when naming files, they can generally be distinguished by their extensions. That is, the filename format can be "main filename.extension". In this way, the system can determine the type of the file according to the extension in the file name, and then determine its format and purpose. Extensions have become an essential part of almost every file name. For some operating systems, if there is no extension in the file name, then the operating system cannot process the file and cannot determin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/60G06F21/62G06F21/64
Inventor 孙吉平赵亮
Owner 上海纬百科技有限公司
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