Privacy-protection-supporting personalized search system based on cloud computing

A privacy protection and search system technology, applied in the field of personalized search system, can solve the problems of lack of personalization in the field of searchable encryption, ambiguity cannot be eliminated, etc., to save local storage space, solve the lack of personalization, and have strong security Effect

Inactive Publication Date: 2017-05-31
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is: in order to solve the above problems in the prior art, the present invention proposes a personalized search system based on cloud computing that supports privacy protection, in order to solve the lack of personalization and the inability to eliminate in the field of searchable encryption. ambiguity problem

Method used

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  • Privacy-protection-supporting personalized search system based on cloud computing

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Embodiment Construction

[0023] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0024] like figure 1 As shown, it is a schematic structural diagram of the cloud computing-based personalized search system supporting privacy protection of the present invention. A cloud computing-based personalized search system supporting privacy protection, including:

[0025] The data owner is used to extract the corresponding index of each document from the outsourced data document set, perform symmetric encryption on the outsourced data and index to be uploaded to the cloud server, and notify the generated key to the authorized data user; guide the user to generate The local dictionary adj...

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Abstract

The invention discloses a privacy-protection-supporting personalized search system based on cloud computing. The system comprises a data own end, a cloud server and a data use end. By means of the high computing capacity of the cloud server, a Top-k result is screened out through a multi-keyword search rank, network expenses and local storage space are saved for users, and in the whole process, the cloud server and illegal users cannot obtain plaintext content of data and keyword content in user query requests; search preferences and search habits of the users are automatically and normatively shown by establishing a user preference model, the problems that in the searchable encryption field, personalization is in lack and ambiguity cannot be eliminated are solved, therefore, the search result is more precise, and the safety of a trap door in the search process is higher.

Description

technical field [0001] The invention belongs to the technical field of information security, and in particular relates to a personalized search system based on cloud computing and supporting privacy protection. Background technique [0002] With the advent of the era of cloud computing, more and more enterprises and individuals hand over their data to cloud servers for storage. This outsourcing storage method can not only make reasonable use of network resources but also reduce the cost of user maintenance data. [0003] However, cloud servers and illegal users (such as hackers and other users who do not have access rights) can try to obtain the information contained in the data by accessing the data, which will directly cause the leakage of data information and user privacy. In order to protect the privacy of data and combat unauthorized access to sensitive data (emails, personal health records, photo albums, tax documents, financial transactions, etc.) Encrypt it before t...

Claims

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Application Information

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IPC IPC(8): G06F17/30G06F21/60
CPCG06F16/9535G06F21/602
Inventor 李婷李耀先孙源良赵瑞辉
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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