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

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...

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 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, for the user, it cannot be viewed or edited, which affects the user's use

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