Encrypted file read-write method and device, electronic equipment and storage medium

A technology for encrypting files and reading and writing methods, which is applied in computer security devices, electronic digital data processing, instruments, etc., can solve problems that affect users' use, cannot be viewed or edited, and application software is unavailable, so as to ensure security and confidentiality Effect

Pending Publication Date: 2021-08-06
杭州弗兰科信息安全科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, many enterprises and government units usually encrypt files because some important files are accidentally or intentionally leaked through copying during use, such as hackers directly stealing related fi...

Method used

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  • Encrypted file read-write method and device, electronic equipment and storage medium
  • Encrypted file read-write method and device, electronic equipment and storage medium
  • Encrypted file read-write method and device, electronic equipment and storage medium

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Embodiment Construction

[0037] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0038] Many enterprises and government units inadvertently or intentionally disclose relevant documents through copying or hacking during the use of important or confidential documents. To solve this problem, files are usually encrypted, but encryption can cause application software such as word programs to be unusable. Based on the above technical p...

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Abstract

The invention discloses an encrypted file read-write method and device, electronic equipment and a storage medium, and the method comprises the steps: when a main application starts a request for reading a target encrypted file, a file system in a kernel space initiates hardware interruption, and sends an acquisition request of the target encrypted file to a physical disk; the target encrypted file is obtained from the physical disk, and the target encrypted file is decrypted by using a file filter driver in the file system to generate plaintext information; and the plaintext information is copied to a user space memory where the main application is located, so that the main application reads and writes the plaintext information. According to the method, the target encrypted file is encrypted and decrypted in the driving layer, plaintext information can be read without changing application software, and the target encrypted file is always in an encrypted state in a file system, so that the security and confidentiality of the file are ensured, the required file can be read without perception for the application layer, namely a main application, and the user use is not influenced.

Description

technical field [0001] The present application relates to the technical field of file security, in particular to an encrypted file reading and writing method, device, electronic equipment and storage medium. Background technique [0002] At present, many enterprises and government units usually encrypt files because some important files are accidentally or intentionally leaked through copying during use, such as hackers directly stealing related files, but encryption will lead to The unavailability of application software, such as the word program, such as the document loaded by word is encrypted, and for the user, it cannot be viewed or edited, which affects the user's use. Contents of the invention [0003] The purpose of this application is to provide a method for reading and writing encrypted files, a device, an electronic device, and a storage medium, which can encrypt and decrypt target encrypted files at the driver layer, and can read plaintext information without c...

Claims

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Application Information

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IPC IPC(8): G06F21/62
CPCG06F21/6218G06F2221/2107
Inventor 侯良伟李卫明
Owner 杭州弗兰科信息安全科技有限公司
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