Safety cloud storage method and system

A cloud storage system and cloud storage technology, applied in the field of safe cloud storage methods and systems, can solve the problems of unbalanced data security and sharing, and achieve the effect of ensuring security and flexible data security sharing functions

Inactive Publication Date: 2015-06-17
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a secure cloud storage ...

Method used

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  • Safety cloud storage method and system
  • Safety cloud storage method and system
  • Safety cloud storage method and system

Examples

Experimental program
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no. 1 example

[0030] This embodiment provides a secure cloud storage method. In the secure cloud storage method of the present invention, the cloud storage service allows users to store data remotely and share the information conveniently. A key issue is how to ensure the security and privacy of user data and implement access control mechanisms in data sharing. The method of the invention is an efficient file encryption and decryption and access control scheme combined with linear coding in cloud storage. Firstly, the file data is encrypted by file linear encoding, so that the file data is transmitted and stored in ciphertext, which ensures data security. Secondly, the attribute encryption algorithm is used to encrypt the file key, and the obtained key is used to implement access control. The system of the present invention includes: a file encryption and decryption module, an attribute encryption and decryption module, a key server and a cloud storage system. The safety of data transmissi...

no. 2 example

[0108] In order to realize the above secure cloud storage method, this embodiment provides a corresponding secure cloud storage system, please refer to figure 2 , which is a schematic structural diagram of a secure cloud storage system of the present invention. Such as figure 2 As shown, the secure cloud storage system includes: a cloud storage server 1 , a key generation distribution server 2 and a client 3 .

[0109] The cloud storage server 1 is used for cloud storage management data and controls access to the data; the cloud storage server 1 is used for storing all data, providing a platform for data sharing, and can download and upload data. Specifically, in this embodiment, the cloud storage server 1 includes: a data management module and a user management module.

[0110] The data management module is used to provide an interface for data upload and download and manage the stored data.

[0111] The user management module is connected with the data management module...

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Abstract

The invention provides a safety cloud storage method and system. The safety cloud storage system comprises a cloud storage server, a key generation and distribution server and a client-side, wherein the cloud storage server is used for managing data and controlling data access; the key generation and distribution server is used for generating property public keys of shared data and a property secrete key of a user; the client-side is used for encrypting and decrypting data and setting the data access strategy. File data are encrypted in a file linear coding mode and are transmitted and stored as a ciphertext, and data safety is guaranteed; a file secrete key is encrypted according to a property encryption algorithm, and the obtained secret key can be used for realizing access control.

Description

technical field [0001] The present invention relates to the field of information security technology, in particular to the field of security technology of data encryption and data sharing, specifically a secure cloud storage method and system. Background technique [0002] In recent years, with the rapid and rapid development of Internet technology and the development of the entire information industry, both personal information and corporate data are growing explosively. Therefore, more and more manufacturers have launched cloud storage services. [0003] Although cloud storage has brought great convenience to users, at the same time, cloud storage has also brought many hidden dangers. The main obstacles to the widespread adoption of cloud services are security and privacy issues. After the user's data is uploaded to the server, the management right of the data is taken over by the server, so the user cannot guarantee the confidentiality of the data on the server. Cloud ...

Claims

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Application Information

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IPC IPC(8): H04L29/08H04L29/06H04L9/32
CPCH04L67/1097H04L63/0428
Inventor 骆源黄粟廖振壹
Owner SHANGHAI JIAO TONG UNIV
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