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Data sharing method and system under cloud computing environment

A cloud computing environment and data sharing technology, applied in the field of user data sharing methods and systems, can solve problems such as hidden dangers, inflexibility and security, and achieve the effects of low repetition, improved security, and simple and direct establishment methods.

Active Publication Date: 2013-12-18
CEC CYBERSPACE GREAT WALL
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AI Technical Summary

Problems solved by technology

[0004] The present invention is aimed at the existing cloud computing environment data sharing when users download their own encrypted data from the cloud storage platform to the local and then decrypt it and then pass it on to others. There are potential safety hazards, and a cloud computing environment data sharing method is provided, which establishes data index keyword information and generates matching data ciphertext indexes and data extraction tokens, while ensuring the security of cloud computing environment data storage, it is convenient effectively solve the problem of user data sharing

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  • Data sharing method and system under cloud computing environment
  • Data sharing method and system under cloud computing environment
  • Data sharing method and system under cloud computing environment

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Embodiment Construction

[0034] The present invention will be described below in conjunction with the accompanying drawings.

[0035] The invention relates to a cloud computing environment data sharing method, which can realize user data sharing in the cloud computing environment, and its principle is as follows: figure 1 As shown, mark 1 and mark 2 are user A and user B respectively, and both user A and user B are users in the cloud computing environment, and they are also users of cloud computing services. How data is shared with user B. This method aims at the problem of safe data sharing under the cloud computing environment (or cloud storage environment), introduces the data processing server 3 to receive user A data, encrypts and stores user A data, performs encryption and decryption operations, and is responsible for generating matching For information such as data ciphertext index and data extraction token, when data processing server 3 encrypts and decrypts, it may specifically request passw...

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Abstract

The invention relates to a data sharing method and system under the cloud computing environment. The method comprises the user data encryption storage step and the user data extraction step. The user data encryption storage step comprises the particular steps that a data processing server sets up data index keyword information for user data and generates a matched data ciphertext index and a matched data extraction token, the user data are stored in a cloud storage platform after being encrypted, the data ciphertext index and a data storage address are stored in a data extraction server, and the data extraction token is transmitted to a user. The user data extraction step comprises the particular steps that after receiving the data extraction token, the data extraction server verifies the legality of the data extraction token, extracts data from the cloud storage platform according to the data storage address, and the data are returned to the user by the data extraction server after being decrypted by the data processing server. According to the data sharing method and system, the data storage safety under the cloud computing environment is ensured, and meanwhile the problem of user data sharing is conveniently solved.

Description

technical field [0001] The invention relates to the technical field of data information security, in particular to a safe user data sharing method and system in a cloud computing environment. Background technique [0002] Cloud computing is a delivery model of IT resources and services, which can achieve anytime, anywhere, convenient and on-demand access to the required resources (such as network, server, storage, applications, services, etc.), these resources can be rapidly provisioned and released with minimal administrative cost or service provider intervention. With the development of cloud computing technology and the continuous progress of cloud computing business, cloud computing will play an increasingly important role in the IT field. [0003] In the cloud computing environment, the user's data is stored on the cloud storage platform, which is physically out of the user's control. Users are most worried about whether their data is protected, whether it is used or ...

Claims

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Application Information

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IPC IPC(8): H04L9/32H04L29/08
Inventor 张雅哲陈幼雷
Owner CEC CYBERSPACE GREAT WALL
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