Encryption and decryption method of file encryption and decryption system

Abstract

The invention discloses an encryption and decryption method of a file encryption and decryption system, and mainly aims at solving the problems in the prior art that a file encrypted through an existing encryption mode is not high in confidentiality, is easy to decrypt, or can be used on multiple sets of equipment after being downloaded, and thus the ownership of the file is violated. According to the encryption and decryption method of the file encryption and decryption system, firstly the file is broken into thousands of fragment files, the fragment files are randomly divided into three parts, the three parts are stored encrypted on a cloud server, a local server and an intelligent terminal respectively, and the authorized intelligent terminal downloads the clip files from the local server and the intelligent terminal respectively and then compounds the downloaded clip files after decryption into music flow. Through the encryption and decryption method of the file encryption and decryption system, the purpose of strong secret files is achieved, and the system and method has high practical value and promotional value.

Description

technical field [0001] The invention relates to the field of encryption and decryption, in particular to an encryption and decryption method of a file encryption and decryption system. Background technique [0002] Today, with the rapid development of network technology, it is a known technology to download files such as music from the Internet; however, the music files that can be downloaded on the Internet are music files with original singing and accompaniment, and the music file provider does not There is no technical restriction on the free dissemination of downloaded files by users, which may cause infringement of the intellectual property rights of original authors. Existing encryption and decryption systems often directly encrypt the entire file and decrypt it using the secret key; the encryption of the file in the above method makes the file confidentiality is not strong, it is very easy to crack or after downloading, it can be used on multiple devices, making the f...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an encryption and decryption method of a file encryption and decryption system to solve the problem that the confidentiality of files encrypted by existing encryption methods is not strong, and it is very easy to crack or can be used on multiple devices after downloading. The ownership of the file has been violated