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File type identification method and device

A technology of file type and recognition method, which is applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of low recognition accuracy, achieve rapid recognition and analysis, improve accuracy, and avoid file leakage.

Inactive Publication Date: 2019-12-03
北京明朝万达科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a method and device for identifying file types to solve the problem of low accuracy in identifying file types of custom files in the prior art

Method used

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  • File type identification method and device
  • File type identification method and device
  • File type identification method and device

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Embodiment Construction

[0062] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0063] The nouns involved in the embodiments of the present invention are explained as follows:

[0064]File type: also known as file format, refers to the special encoding method for information used by computers to store information, and is used to identify internally stored data. For example, some store pictures, some store programs, and some store text information. Each type of information can be stored in computer storage in one or more file formats. Each file format usually has one or more extensions that can be used to identify it, but it may not have an extension. Extensions help applications recognize the file format.

[0065] File extension: filename extension, also known as the suffix of the file, is a mechanism used...

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Abstract

The invention provides a file type identification method and a device. The method comprises the steps of obtaining encoding information of a to-be-identified custom file; judging the matching degree of the encoding information and encoding information of a file pre-stored in a registration component; and if the matching degree is greater than a preset value, determining that the file type of the custom file is the file type corresponding to the pre-stored encoding information of the file, so that the file type of the custom file can be quickly identified and analyzed, the accuracy of identifying the custom file type is improved, and the problem of file leakage is avoided.

Description

technical field [0001] The invention relates to the technical field of file processing, in particular to a file type identification method and device. Background technique [0002] The file format is used to store special data, for example: the JPEG file format in image files is only used to store static images, text files generally only store simple ASCII or Unicode text without format; HTML files can store formatted text etc. Most of the files have a public, varying degrees of specification or suggested format, but in some cases, the file format of the custom file is not public, for example, the developer regards the file format as a commercial secret and is unwilling to disclose or develop Readers are unwilling or spend very little time on specification documentation. [0003] In the prior art, the file type is usually obtained by reading the file extension of the file, or the file type is automatically perceived according to the content characteristics by reading the f...

Claims

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Application Information

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IPC IPC(8): G06F17/22G06F16/903
CPCG06F16/90344
Inventor 罗志成喻波王志海韩振国安鹏
Owner 北京明朝万达科技股份有限公司