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Method and device for detecting result privacy of multi-party safety computing, equipment and medium

A technology of calculation results and detection methods, which is applied in the field of privacy detection of results of multi-party secure computing, and can solve problems such as affecting calculation efficiency and difficulty in direct detection by manual review.

Active Publication Date: 2021-10-01
富算科技(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method causes all participants in each computing task to manually participate in the review, which greatly affects the computing efficiency. In addition, some malicious participants design the logic of the application algorithm into a complex algorithm, but the final result is still a certain The original value of an input value or an inferred deformation value, in which case it is often difficult for human review to detect directly

Method used

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  • Method and device for detecting result privacy of multi-party safety computing, equipment and medium
  • Method and device for detecting result privacy of multi-party safety computing, equipment and medium
  • Method and device for detecting result privacy of multi-party safety computing, equipment and medium

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Embodiment 1

[0043] This embodiment provides a method for detecting the privacy of multi-party secure computing (MPC) results, which is applicable to any participating node among multiple participating nodes deployed in a distributed network. Each participating node can jointly Participate in multi-party secure computing. Such asfigure 1 and 2 As shown, the method specifically includes the following steps:

[0044] S1. When one of the participating nodes initiates a multi-party secure computing task as the initiator, any of the participating nodes and other participating nodes use their pre-configured test sample data to execute the initiator based on the multi-party secure computing protocol. Write the algorithm logic to get the test calculation results.

[0045] In this embodiment, each participating node is pre-configured with test sample data for result privacy detection, and the test sample data is data desensitized by ID.

[0046] When one of the participating nodes initiates a mu...

Embodiment 2

[0066] This embodiment provides a device for detecting the privacy of the results of multi-party secure computing, which is suitable for any participating node among multiple participating nodes deployed in a distributed network, such as image 3 As shown, the device includes:

[0067] The testing module 11 is used for when one of the participating nodes initiates a multi-party secure computing task as an initiator, together with other participating nodes, they use their pre-configured test sample data to execute the program written by the initiator based on the multi-party secure computing protocol. Algorithmic logic, and get the corresponding test calculation results;

[0068] The correlation coefficient calculation module 12 is used to calculate the correlation coefficient between the test sample data pre-configured by each participating node and the test calculation result based on a secret sharing mechanism with other participating nodes;

[0069] The correlation coeffic...

Embodiment 3

[0081]This embodiment provides an electronic device, which can be expressed in the form of a computing device (for example, it can be a server device), including a memory, a processor, and a computer program stored on the memory and operable on the processor, wherein the processor When the computer program is executed, the method for detecting the privacy of the result of the multi-party secure calculation provided in Embodiment 1 can be realized.

[0082] Figure 4 A schematic diagram of the hardware structure of this embodiment is shown, as Figure 4 As shown, the electronic device 9 specifically includes:

[0083] At least one processor 91, at least one memory 92, and a bus 93 for connecting different system components, including the processor 91 and the memory 92, wherein:

[0084] The bus 93 includes a data bus, an address bus, and a control bus.

[0085] The memory 92 includes a volatile memory, such as a random access memory (RAM) 921 and / or a cache memory 922 , and ...

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Abstract

The invention provides a method and a device for detecting the result privacy of multi-party safety computing, equipment and a medium. The method comprises the following steps: when a certain participating node serves as an initiator to initiate a multi-party safety computing task, utilizing respective pre-configured test sample data together to detect the multi-party safety computing result privacy by the participating node and other participating nodes; executing the algorithm logic compiled by the initiator based on a multi-party safety computing protocol, and obtaining a corresponding test computing result; calculating a correlation coefficient between the test sample data pre-configured by each participating node and the test calculation result based on a secret sharing mechanism by any participating node and other participating nodes; and obtaining a correlation coefficient between the test sample data of the participating node and the test calculation result by any participating node, so that the safety of the algorithm logic is judged according to the obtained correlation coefficient. According to the method, the result privacy automatic detection of multi-party safety calculation can be realized.

Description

technical field [0001] The present invention relates to the field of computer security, and relates to a method, device, equipment and medium for detecting privacy of results of multi-party secure computing. Background technique [0002] Multi-party secure computing (MPC) refers to the secure completion of certain collaborative computing through the joint participation of multiple parties without a trusted third party. That is, in a distributed network, each participant holds a secret input and hopes to jointly complete the calculation of a certain function, but requires that each participant cannot obtain any input information from other participating entities except the calculation result . That is to say, the multi-party secure computing technology can make data available and invisible, obtain the value of data use, and at the same time not disclose the original data content, and realize data security and privacy protection. Therefore, with the development of big data a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/08
CPCH04L9/085H04L2209/46
Inventor 黄翠婷卞阳
Owner 富算科技(上海)有限公司
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