File data transmission device and method used for cloud storage system

Abstract

The invention discloses a file data transmission device and method used for a cloud storage system. The file data transmission device comprises a data server and a server side. A virtual machine monitor operating on a server side constructs a sealed computing environment according to the requirements, and returns the admission information of the sealed computing environment to a client side. A user automatically constructs a second secret key, and transmits the encrypted second secret key to the sealed computing environment, and the sealed computing environment obtains the second secret key through deciphering. The file data is encrypted according to the second secret key so as to form data stored in a cloud side. The sealing computing environment can obtain the second secret key through deciphering and then decipher the encrypted file data, and the file data deciphered according to the fist secret key is then encrypted so as to be transmitted to the client side. By utilizing the technical scheme provided by the invention, the file data is in a encryption state in the entire data transmission process, the sealed computing environment can decipher and encrypt file data in a sealing state so as to further enhance the privacy of the data of the user.

Description

technical field [0001] The invention relates to a cloud storage system technology, in particular to a file data transmission method and device for a cloud storage system. Background technique [0002] With the development of Internet technology, the amount of information in the form of data is growing explosively, and people's demand for information storage is increasing. The storage method has developed from the initial stand-alone storage, grid storage, and distributed storage to the current cloud storage. Cloud storage is a new concept extended and developed on the basis of the concept of cloud computing. It refers to a large number of different types of storage devices in the network through functions such as cluster applications, grid technology or distributed file systems. It is also called a cloud storage system, which is a system that gathers various application software and makes them work together to provide data storage and business access functions to the outsid...

AI Technical Summary

Problems solved by technology

The disadvantage of this method is: user data is transmitted in the network in clear text, during this process, the data is easily stolen, and privacy is difficult to guarantee

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