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Database sensitive association attribute desensitization method based on invariant random response technology

A sensitive attribute and random response technology, applied in the field of database processing, can solve problems such as ignoring database privacy risks, achieve a high degree of privacy protection, enhance data utility, and have good data utility

Inactive Publication Date: 2020-04-10
ANHUI UNIV OF SCI & TECH
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Problems solved by technology

[0005] However, in the existing database desensitization schemes, the attributes are mainly considered to be independent or completely related to each other, and the privacy risk in reconstructing sensitive attributes related to some attributes in the database is ignored.

Method used

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  • Database sensitive association attribute desensitization method based on invariant random response technology
  • Database sensitive association attribute desensitization method based on invariant random response technology
  • Database sensitive association attribute desensitization method based on invariant random response technology

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Embodiment Construction

[0048] In order to have a further understanding and understanding of the structural features of the present invention and the achieved effects, the preferred embodiments and accompanying drawings are used for a detailed description, as follows:

[0049] Such as figure 1 As shown, the database sensitive association attribute desensitization method based on invariant post-random response technology described in the present invention comprises the following steps:

[0050] The first step is the analysis of the original data: according to the strength of the relationship between the quasi-identifier (QI) attribute and the sensitive (SA) attribute of the original data in the database, the relationship between the attributes in the database is analyzed. In the selection of desensitization, QI attributes are divided according to the dependence degree between QI attributes and SA attributes, and SA attributes and QI attributes with strong dependencies are selected for perturbation. Th...

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Abstract

The invention relates to a database sensitive association attribute desensitization method based on an invariant random response technology. Compared with the prior art, the defect that privacy risksrelated to data attributes are not fully considered is overcome. The method comprises the following steps: analyzing original data; and desensitizing sensitive associated attributes. On the basis of considering the dependency relationship between a quasi-identifier attribute and a sensitive attribute of the data stored in the database, the sensitive data in the database is desensitized to protectthe privacy of a user, and the data utility is enhanced.

Description

technical field [0001] The invention relates to the technical field of database processing, in particular to a method for desensitizing database sensitive association attributes based on invariant post-random response technology. Background technique [0002] With the progress of society and the development of science and technology, massive amounts of data are stored in databases, from which people can extract a lot of valuable information, but the information contained in these data may also leak the privacy of users. Random Response (RR) technology was originally used as a means to eliminate statistical bias. The main idea is to use uncertainty to protect sensitive information, but today's generalized random response is to perturb the original value to other values ​​according to a certain probability. On the basis of random response, Kooiman et al. proposed Post Randomization Method (PRAM), which is similar to random response in mathematics, and studies how to improve st...

Claims

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Application Information

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IPC IPC(8): G06F21/62
CPCG06F21/6245
Inventor 杨高明裴成飞方贤进朱海明
Owner ANHUI UNIV OF SCI & TECH
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