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Determination method and apparatus for inference channel reservation object

A technology of objects and data objects, which is applied in the field of database security, can solve problems such as inaccessibility, attacks, and normal access to the database, and achieve the effect of ensuring normal access and avoiding blocking attacks

Active Publication Date: 2016-05-11
TIANJIN NANKAI UNIV GENERAL DATA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, this algorithm has the problem of "blocking object" attack, that is, the user blocks the remaining object by accessing the rest of the inference channel, so that other users cannot access the object
It affects the normal access of other users to the database

Method used

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  • Determination method and apparatus for inference channel reservation object
  • Determination method and apparatus for inference channel reservation object
  • Determination method and apparatus for inference channel reservation object

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Embodiment Construction

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0039] figure 1 It is a schematic flow chart of the method for determining the reserved object of the inference channel provided by the first embodiment of the present invention, and the method is implemented by means of corresponding devices. Said means can be realized by software / hardware and generally integrated in a database.

[0040] see figure 1 , the method for determining the reserved object of the inference channel includes:

[0041] Step S...

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Abstract

The invention provides a determination method and apparatus for an inference channel reservation object. The method comprises the steps of making statistics on the operation frequency of a data object; according to the operation frequency, determining a lowest frequency threshold and a highest frequency threshold; comparing the operation frequency of the data object with the lowest frequency threshold and the highest frequency threshold separately to determine a low-frequency object and a high-frequency object; according to an object in a correlation group in which the low-frequency object is located, determining whether a mark is added to the low-frequency object or not; and taking the low-frequency object without the mark as a reservation object. The jamming attack of the data object can be effectively avoided. The normal access of other users to a database is ensured.

Description

technical field [0001] The invention belongs to the field of database security, and in particular relates to a method and device for determining reserved objects of reasoning channels. Background technique [0002] With the wide application of computer and network technology, database security technology has become an important research field of information security. Database reasoning control is one of the key technologies in the study of high security level security database systems, and is an important means to ensure database security. Research on inference problems first started in statistical databases. Aiming at the inference problem in the statistical database, the inference attack methods that the statistical database may be subjected to are analyzed, the corresponding inference control methods are studied, and the limitations of various inference control methods are analyzed. [0003] The dynamic inference control mechanism is the focus of current research. Dyna...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/62
CPCG06F21/6218
Inventor 崔维力赵伟李淼
Owner TIANJIN NANKAI UNIV GENERAL DATA TECH
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