File protection method and device, computer device and storage medium

A technology for protecting devices and files, applied in the computer field, can solve problems such as large memory space of encrypted files, and achieve the effects of simple encryption algorithm, improved security, and reduced memory occupied space.

Inactive Publication Date: 2019-01-15
PING AN TECH (SHENZHEN) CO LTD
View PDF5 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a file protection method, device, computer equipment, and storage medium to solve the current problem that encrypted files obtained after encrypting videos or pictures occupy a relatively large memory space

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • File protection method and device, computer device and storage medium
  • File protection method and device, computer device and storage medium
  • File protection method and device, computer device and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0028] The file protection method provided by this application can be applied in such as figure 1 In the application environment, the application environment includes a server and a client, wherein the server and the client are connected through the network, the client sends the file to be encrypted or the file to be decrypted to the server, and the server performs encryption on the file to be encrypted. Encryption or decryption of files to be decrypte...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a file protection method and device, a computer device and a storage medium. The method comprises receiving a file to be encrypted; generating at random encryption informationcorresponding to the file to be encrypted, wherein the encryption information comprises a random number of interference bits, a random interference number, and an encryption key of a preset length; encrypting the file content of the file to be encrypted by using the encryption key to obtain encrypted content; combining the encryption information and the encrypted content according to a preset permutation and combination manner and adding a preset encryption identifier to a preset encryption identifier bit to obtain an encrypted file. By encrypting and misaligning the content of the file, the content of the encrypted file is protected. An encryption algorithm is relatively simple and fast such that the memory storage space of the encrypted file can be reduced while file storage security isensured.

Description

technical field [0001] The present invention relates to the field of computer technology, in particular to a file protection method, device, computer equipment and storage medium. Background technique [0002] With the development of the Internet era, the use of communication networks to transmit data not only saves time, but also improves work efficiency. However, while the network brings convenience to people, network security issues have always plagued us. For work content and personal To prevent privacy from being stolen by others, it is usually necessary to encrypt the used files, and encrypted files can effectively prevent useful or privatized information from being intercepted and stolen on the network, improving file security. [0003] In actual work, pictures or videos stored in plain text have certain security risks. Leakage of pictures and videos may cause large losses. Therefore, special encryption for important graphic information is very necessary, but , the e...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L9/08
CPCH04L9/0861H04L9/0869H04L63/0428
Inventor 王涛
Owner PING AN TECH (SHENZHEN) CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap