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Information comparison method and device and electronic equipment

A technology of information subsets and information subsets, which is applied in the fields of information comparison methods, devices and electronic equipment, can solve problems such as low efficiency and long time, and achieve the effects of reducing time, improving efficiency, and reducing the number of times of information comparison

Pending Publication Date: 2021-10-08
HUAKONG TSINGJIAO INFORMATION SCI BEIJING LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The embodiment of the present application provides an information comparison method, device and electronic equipment to solve the problems in the prior art that it takes a long time and low efficiency to determine the intersection of sets by using the privacy set intersection algorithm

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  • Information comparison method and device and electronic equipment
  • Information comparison method and device and electronic equipment
  • Information comparison method and device and electronic equipment

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Embodiment Construction

[0068] In order to give a reduction in the time required to use the privacy set ascending algorithm to determine the integrated intersection, and improve the effectiveness of the efficiency of the integrated intersection of the integrated integrated assertion algorithm, the present application provides a method, apparatus, and The electronic device, the following combination of the description of the preferred embodiments of the present application will be understood that the preferred embodiments described herein are intended to illustrate and explain the present application only and is not intended to limit the present application. And in the case of an unable conflict, the features of the present application and the features in the embodiments may be combined with each other.

[0069] The present application provides an information ratio method, and is applied to a first device in two devices of information comparison. The first device has a first set of information, and the fi...

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Abstract

The invention discloses an information comparison method and device and electronic equipment. The information comparison method comprises the steps of: obtaining subset features of all first information subsets; on the basis of the subset features of the first information subsets, determining the same subset features between the subset features of the first information subsets and the subset features of the second information subsets through information interaction with the second equipment, and taking the same subset features as the same subset features; and for each same subset feature, determining the same information in the first information subset and the second information subset with the same subset feature by adopting a privacy set intersection algorithm. By adopting the scheme, the duration required for determining the set intersection by adopting the privacy set intersection algorithm is reduced, so that the efficiency of determining the set intersection by adopting the privacy set intersection algorithm is improved.

Description

Technical field [0001] The present application relates to the field of multi-party safety calculations, and more particularly to one information comparison method, apparatus and electronic device. Background technique [0002] Private Set Intersection, PSI is a specific application problem in multi-party security calculations, which is not only important theoretical significance. [0003] The PSI allows both sides (or more) to share the intersections of their respective collections. At the end of the interaction of the protocol, one or a few should get the correct intersection, and will not get any information other than the intersection of other parties. In practical applications, PSI can be used separately to obtain a common blacklist or a list of customers. It can also be used as a joint model training (such as longitudinal federal learning), both sides (or more) through the PSI acquisition information, and then according to common information, the features of this information...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/62G06F16/245
CPCG06F21/6245G06F16/245
Inventor 王天雨
Owner HUAKONG TSINGJIAO INFORMATION SCI BEIJING LTD
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