Downloading method and related system and equipment

Abstract

The embodiment of the invention discloses a downloading method which comprises the following steps: encrypting an original file through a public key by a file server, and generating a mark of the file according to the encrypted file; sending a downloading request comprising the mark of the file requesting downloading to a central server by a client; acquiring a downloading resource list and sending the downloading resource list corresponding to the mark to the client by the central server; downloading the needed file from the file server and other clients according to the downloading resourcelist by the client; if the client needs to read the downloaded file, then acquiring characteristic information of at least an authorized device and sending the characteristic information to the central server; acquiring a first key by encrypting the public key through the characteristic information by the central server, and sending the first key to the client; and acquiring the public key by decrypting the first key according to the characteristic information by the client, and decrypting and reading the downloaded file according to the public key. The embodiment of the invention also provides related system and equipment. The embodiment of the invention can effectively protect the copyright of the file.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a downloading method and related systems and devices. Background technique [0002] With the popularity of the Internet, people can easily download required files through the network, such as movie video files and music video files, but the problem that follows is that the use of files is difficult to be effectively controlled. When the user downloads the file, the file provider loses control over the file, for example, the file may be distributed and used without the file provider's consent, thereby infringing on the file provider's interests . Therefore, need badly a kind of downloading method that can carry out effective copyright protection to file. Contents of the invention [0003] The embodiment of the present invention provides a downloading method and a related system and equipment, which can effectively protect the copyright of files. [0004] The download me...

AI Technical Summary

Problems solved by technology

[0002] With the popularization of the Internet, people can easily download the required files through the network, such as movie video files, music video files, and the problem that follows is that the use of files is difficult to be effectively controlled

When the user downloads the file, the file provider loses control over the file, for example, the file may be distributed and used without the file provider's consent, thereby infringing on the file provider's interests

Images