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Common user data acquisition method and device and server

A technology of user data and acquisition method, which is applied in the field of data security, can solve the problems of slow operating efficiency and large consumption of computing resources, and achieve the effects of cost saving, simple calculation, and faster transmission rate

Active Publication Date: 2021-08-10
龚健
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a common user data acquisition method and device to squeeze the server, which has solved the problem of the existing multi-party secure computing method consuming computing resources Large, slow running problems

Method used

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  • Common user data acquisition method and device and server
  • Common user data acquisition method and device and server
  • Common user data acquisition method and device and server

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Embodiment Construction

[0064] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present invention will be described in detail below in conjunction with the drawings and embodiments. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. Based on the embodiments in the present application, all other implementation manners obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present application.

[0065] refer to figure 1 , an embodiment of the present invention provides a common user data acquisition method, including the following steps:

[0066] Calculate the hash value of each element of the receiver, and each element of the receiver is the data of each user of the receiver;

[0067] Processing the hash value with the first preset random character string to obtain a random number corresponding to each ha...

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Abstract

The invention discloses a common user data acquisition method, a common user data acquisition device and a server, and belongs to a data security technology. The method comprises the steps: obtaining two matrixes by calculating a hash value and a corresponding random number of each element of a receiver; sending the two matrixes to a sender to enable the sender to obtain a third matrix, and sending a first preset random character string to the sender; calculating the random function value of each element of the receiver and the sender; and obtaining common user data of the receiver and the sender according to the first pseudo-random function value and the second pseudo-random function value. According to the scheme, calculation is simple, a large number of calculation resources do not need to be consumed, cost is saved, meanwhile, safety of data of the two parties can be guaranteed without using a third-party platform, and the transmission rate can be greatly increased by using the matrix and the random number.

Description

technical field [0001] The invention relates to data security technology, in particular, to a method and device for obtaining common user data and a server. Background technique [0002] For enterprises that serve consumers, such as merchants, banks, and advertising promoters, customers or users are of great significance to the development of their own operations. However, in the current situation, an enterprise can only know its own customers or users, and it is not clear whether these customers or users are also customers or users of other companies in the same industry. If you want to know the common users of two companies and ensure that the data of other users of your own is not leaked, you need to use multi-party secure computing. [0003] The problem and solution of multi-party secure computing was first proposed by Dr. Yao Zhizhi in the 1980s, and the solution he proposed - obfuscation circuit - is still one of the mainstream solutions for two-party secure computing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/08H04L9/32
CPCH04L9/0869H04L9/3239Y02D30/50
Inventor 李傲轩方建
Owner 龚健
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