Private data intersection calculation method and device, equipment and storage medium

A technology of privacy data and calculation method, applied in the security field, can solve the problem of low efficiency of data intersection calculation, and achieve the effect of improving data query speed, improving efficiency, and solving low efficiency

Pending Publication Date: 2021-09-03
招商局金融科技有限公司
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  • Abstract
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  • Claims
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Problems solved by technology

[0004] The invention provides a privacy data intersection calculation method, device, equipment and storage

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  • Private data intersection calculation method and device, equipment and storage medium
  • Private data intersection calculation method and device, equipment and storage medium
  • Private data intersection calculation method and device, equipment and storage medium

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Experimental program
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Embodiment Construction

[0052] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0053] An embodiment of the present application provides a method for calculating the intersection of private data. The execution subject of the method for calculating the intersection of private data includes, but is not limited to, at least one of electronic devices such as a server and a terminal that can be configured to execute the method provided by the embodiment of the present application. In other words, the method for calculating the intersection of private data can be executed by software or hardware installed on the terminal device or server device, and the software can be a blockchain platform. The server includes, but is not limited to: a single server, a server cluster, a cloud server or a cloud server cluster, and the like.

[0054] refer to figure 1 As shown in , it is a schematic flowchart of the met...

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Abstract

The invention relates to the technical field of security, and discloses an intersection calculation method for private data, which is applied to a client and comprises the following steps: receiving a data filter sent by a server, filtering client data by using the data filter to obtain client filtered data, performing cuckoo hash processing on the client filtered data, constructing a client hash table according to the obtained hash value, performing casual transmission with the server by using the client hash table to obtain a client comparison sequence, calculating intersection data of the client comparison sequence and a server encrypted sequence sent by the server, and taking all the intersection data as a privacy intersection. The invention further provides a private data intersection calculation device, electronic equipment and a computer readable storage medium. According to the invention, the problem of low efficiency of data intersection calculation can be solved.

Description

technical field [0001] The present invention relates to the field of security technology, in particular to a private data intersection calculation method, device, electronic equipment and computer-readable storage medium. Background technique [0002] Private Set Intersection (PSI) is a method to calculate the intersection of multi-party private data. It belongs to the specific application problem in the field of secure multi-party computing. It not only has important theoretical significance, but also has strong application value. For example, taking the calculation of the actual effect of an advertisement as an example, a common way to measure the effectiveness of an advertisement is to calculate the so-called conversion rate, that is, how many of the users who browsed the advertisement finally browsed the corresponding product page, or finally made a purchase. To obtain the corresponding goods and services, it is generally to calculate the intersection of the user informa...

Claims

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Application Information

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IPC IPC(8): G06F21/62G06F16/22
CPCG06F21/6245G06F21/6227G06F16/2255G06F2221/2107
Inventor 戴露萍杨启正陈海涛
Owner 招商局金融科技有限公司
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