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A method and system for protecting xml file privacy data in a cloud environment

A technology of privacy data and cloud environment, applied in the field of XML file privacy data protection in cloud environment

Active Publication Date: 2020-06-09
SHAOXING UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the privacy and security issues in cloud file management cannot be directly solved by traditional data encryption methods.

Method used

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  • A method and system for protecting xml file privacy data in a cloud environment
  • A method and system for protecting xml file privacy data in a cloud environment
  • A method and system for protecting xml file privacy data in a cloud environment

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Embodiment Construction

[0076] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0077] The XML file privacy data protection method under the cloud environment provided by the present invention comprises the following steps:

[0078] (1) For the sensitive elements in the XML file, add three sub-elements for it, which are respectively ciphertext data element, implication feature data element, and range feature data element, to obtain the encrypted XML file and store it in the cloud; the ciphertext dat...

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Abstract

The invention discloses an XML file privacy data protection method and system in a cloud environment. The method comprises the following steps: (1) adding ciphertext data elements containing characteristic data elements and range characteristic data elements to sensitive elements in an XML file; (2) converting the original query into a replacement query for characteristic data elements and / or range characteristic data elements contained in the sensitive elements; (3) executing alternative query at the cloud end and sending a result to the trusted end; and (4) decrypting the result, executing the original query on the plaintext of the storage content of the sensitive element, and returning the query result to the user. The system comprises an encryption component, a query conversion component and a decryption component. The secret leakage risk of the cloud server is prevented, privacy is protected, therefore the technical problem that in the prior art, risks exist in security of XML file privacy data of the cloud server side is solved.

Description

technical field [0001] The invention belongs to the field of cloud computing, and more specifically relates to a method and system for protecting XML file privacy data in a cloud environment. Background technique [0002] Cloud computing refers to a pay-by-use model, which can obtain required resources (such as networks, servers, storage, applications, services, etc.) from a shared pool of configurable computing resources anytime, anywhere, conveniently, and on demand. . This model can minimize the workload of resource management and the amount of interaction with service providers, thereby greatly reducing the organization's investment in business operations and file management, and improving the efficiency of institutional services. In recent years, the government departments of developed countries (such as the United States, the United Kingdom, Australia, etc.) have promoted the "cloud first" strategy, that is, in the informatization business of government agencies and p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/60G06F21/62
CPCG06F21/602G06F21/6227G06F21/6245G06F2221/2107
Inventor 吴宗大刘曦洋卢成浪谢坚
Owner SHAOXING UNIVERSITY