Multi-party privacy data fusion method and device and electronic equipment

A private data and data fusion technology, applied in the field of data security, can solve the problems of easy leakage of intersection or union information, and achieve the effect of improving security

Active Publication Date: 2021-10-19
CCB FINTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the implementation of this application is to provide a multi-party privacy data fusion method, device and electronic equipment to solve the problem of easy leakage of multi-party intersection or union information

Method used

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  • Multi-party privacy data fusion method and device and electronic equipment
  • Multi-party privacy data fusion method and device and electronic equipment
  • Multi-party privacy data fusion method and device and electronic equipment

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Embodiment Construction

[0016] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The implementations are only some of the implementations of the present application, not all of them. Based on the implementation manners in this application, all other implementation manners obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0017] The embodiment of this specification provides a multi-party privacy data fusion method. Let’s take Party A, Party B, and Party C as an example to introduce the multi-party privacy data fusion method in detail.

[0018] First of all, before starting the fusion, preprocess the data of parties A, B, and C. Spe...

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Abstract

The invention discloses a multi-party privacy data fusion method and device and electronic equipment, and relates to the technical field of data security. Each party randomly splits a privacy data set into two types of sets, firstly processes the two types of sets by adopting own private keys, then transmits the processed first type of set to the next party in a positive sequence, and the second class set is transmitted to the next party in a reverse order; each party also performs N-2 rounds of data interaction, in each round of interaction, each party processes the received two types of sets through a private key of the party, and then transmits the first type of set to the next party in a positive sequence and transmits the second type of set to the next party in a reverse sequence; each party processes the received two types of sets through own private keys, then performs set operation on the processed two types of sets, and sends an operation result to other parties; and each party executes re-execution set operation according to the received set operation result to obtain a multi-party fusion result. In the scheme, each party cannot acquire intersection or union information of any two parties.

Description

technical field [0001] The present application relates to the technical field of data security, in particular to a multi-party privacy data fusion method, device and electronic equipment. Background technique [0002] Data scale and capacity are one of the main competitiveness of commercial organizations. All institutions are expanding their own data volumes to improve data coverage and comprehensive application requirements. At present, when an organization shares user information (ID, mobile phone number, device number, etc.) with other organizations, it needs to obtain the authorization of the corresponding user as a necessary condition. In actual scenarios, the user authorization process will bring negative impacts such as timeliness and user experience, and cause potential compliance risks (for example: the authorization terms are not rigorous or misleading, and it is easy to be subject to user complaints or negative evaluations). Therefore, it is necessary to explore...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/62G06F21/60G06K9/62
CPCG06F21/6245G06F21/602G06F18/251
Inventor 李武璐刘春伟霍昱光权纯王雪
Owner CCB FINTECH CO LTD
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