Data access control method and system in cloud storage environment

A data access control and data access technology, applied in the field of network communication, can solve problems such as illegal use of user data
CN104980477AActive Publication Date: 2015-10-14黑龙江航天信息有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
黑龙江航天信息有限公司
Publication Date
2015-10-14

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Abstract

Embodiments of the invention provide a data access control method and system in a cloud storage environment. The method mainly comprises the steps that a user registers personal information to a cloud server through a client side; when a data owner determines that the data to be transmitted to the cloud server is shared data, the client side of the data owner uses a symmetric key to encrypt the data, and sends the encrypted data, the symmetrical key, a hash operation result of the data and a shared attribute of the data to the cloud server; when the data is not the shared data, the client side of the data owner uses its own public key to encrypt the data, and sends the encrypted data, the hash operation result of the data and the shared attribute of the data to the cloud server. Through adoption of the method and system, confidentiality and integrity of the user data are guaranteed, and confidentiality of the user files is classified, so that authority control under data sharing is better realized, and security improvement of data access control under cloud storage is effectively provided.
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Description

technical field

[0001] The invention relates to the technical field of network communication, in particular to a data access control method and system in a cloud storage environment. Background technique

[0002] With the advent of the big data era, cloud storage has become an inevitable trend in future storage development. Different users upload their files to the cloud, and cloud storage providers provide unified data storage and business access to ensure data security. performance and save storage space. Data owners can authorize other users to download and use their own files, and realize collaborative work among different users through sharing and data synchronization. Although cloud storage can easily realize the synchronization and sharing of user data on different devices, saving costs. However, there are also huge security risks in storing these private user data in public cloud storage.

[0003] A data access method in a cloud storage environment in the prior ar...

Claims

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