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Document safety access method for cloud storage environment

A secure access and cloud storage technology, applied in computer security devices, instruments, electrical digital data processing, etc., can solve the problem of incomplete solution to the balance between cloud document storage security, processing efficiency and user experience, and difficulty in document retrieval and processing , unfavorable user access and other issues, to prevent tampering and accidental loss, ensure integrity and availability, and quickly retrieve documents

Inactive Publication Date: 2015-10-21
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

This solution can solve the security of cloud data storage very well, but the documents of this solution are stored in cipher text in the cloud, which is difficult to realize document retrieval and processing, and is not conducive to users to access a large number of documents
[0005] To sum up, the existing technical solutions do not completely solve the balance between the security, processing efficiency and user experience of cloud document storage.

Method used

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  • Document safety access method for cloud storage environment
  • Document safety access method for cloud storage environment
  • Document safety access method for cloud storage environment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0051] The document security access method in this example is to implement document storage, retrieval and access processing on the cloud storage server based on the encryption and decryption of document files and their sensitive document attribute metadata on the cloud client. When the user chooses to upload a document, fill in basic document metadata information to support document retrieval processing. In order to fully ensure the security of the document, in addition to encrypting the document itself, sensitive document attribute metadata will also be encrypted. The document encryption process in this example is as follows: Figure 5 Shown:

[0052] 1) The cloud client acquires the document D to be uploaded and the sensitive metadata M of the document (including document title, file name, and document keywords).

[0053] 2) Generate the user's encryption key K according to the user account and password.

[0054] 3) Use encryption algorithm ENC and key K to encrypt docume...

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Abstract

The invention belongs to the cloud technical field, and relates to a document safety access method for a cloud storage environment; the method uses client document encryption / decryption process and cloud cryptograph storage technology to ensure document safety access, and realizes cloud retrieval process through document meta-data information. The method can encrypt data content of uploaded documents, and can encrypt sensitive meta-data of the uploaded documents; a user can retrieval the documents through document keyword meta-data, and can determine document integrity according to a digital signature. The beneficial effects are that the cloud client can encrypt the document data, so the documents can be transmitted and stored in the cloud environment in an encryption mode, thus enhancing data safety level of the documents in the cloud environment. In addition, the document condition retrieval process can enable the user to realize fast retrieval access of the cloud documents; the method is especially suitable for user document safety storage application under a public cloud environment.

Description

technical field [0001] The invention belongs to the field of cloud technology, and in particular relates to a method for safely accessing documents in a cloud storage environment. Background technique [0002] Cloud storage is an application technology developed on the basis of cloud computing. It integrates cluster technology, network technology, distributed file storage technology and other functions, and integrates a large number of different types of storage devices in the network to work together through cloud software to jointly provide data storage and business access services. Through the cloud storage system, users can save a large number of data files in the cloud system for storage, so as to use the storage services provided by the cloud, and also realize data sharing access and high availability of data access. In the face of huge market demand, domestic and foreign information industry giants such as Amazon, Google, Huawei, Baidu, Kingsoft, etc. have developed ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/62
CPCG06F21/6218G06F2221/2107
Inventor 陆鑫姚坤
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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