Multi-party secret sharing method, device and readable storage medium

A technology of secret sharing and equipment, applied in key distribution, which can solve problems such as easy leakage of secrets

Active Publication Date: 2021-07-09
WEBANK (CHINA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of this application is to provide a multi-party secret sharing method, device and readable storage medium, aiming to solve the technical problem that secrets are easily leaked during secret sharing in the prior art

Method used

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  • Multi-party secret sharing method, device and readable storage medium
  • Multi-party secret sharing method, device and readable storage medium
  • Multi-party secret sharing method, device and readable storage medium

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Embodiment Construction

[0075] It should be understood that the specific embodiments described here are only used to explain the present application, not to limit the present application.

[0076] The embodiment of the present application provides a multi-party secret sharing method, the multi-party secret sharing method is applied to the first device, in the first embodiment of the multi-party secret sharing method of the present application, refer to figure 1 , the multi-party secret sharing method includes:

[0077] Step S10, receiving the first tensor element and the second tensor element sent by the second device sharing the association with the first device, and generating a multiplication triplet tensor element corresponding to the preset multiplication triplet, wherein, The second device is used to split the first tensor corresponding to the preset target tensor sharing task into a plurality of first tensor elements, and split the second tensor corresponding to the preset target tensor sharin...

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Abstract

The present application discloses a multi-party secret sharing method, device, and readable storage medium. The multi-party secret sharing method includes: receiving the first tensor element and the second tensor element sent by the second device associated with the first device sharing , and generate the multiplication triplet tensor element corresponding to the preset multiplication triplet, wherein the second device is used to split and share the first tensor and the second tensor corresponding to the preset target tensor sharing task to Share the associated first device and multiple target first devices and proceed through each target first device associated with the first device attribute based on the first tensor element, the second tensor element, and the multiply triplet tensor element Interacting, constructing intermediate parameter elements to calculate the target shared tensor, and sending the intermediate parameter elements to each of the target first devices for each target first device to calculate the target shared tensor. This application solves the technical problem that secrets are easily leaked during secret sharing.

Description

technical field [0001] This application relates to the artificial intelligence technology field of financial technology (Fintech), in particular to a multi-party secret sharing method, device and readable storage medium. Background technique [0002] With the continuous development of financial technology, especially Internet technology and finance, more and more technologies (such as distributed, blockchain, artificial intelligence, etc.) Requirements, such as the distribution of corresponding to-do items in the financial industry also have higher requirements. [0003] With the continuous development of computer software and artificial intelligence, the application of federated learning is becoming more and more extensive. When performing federated learning, data sharing is usually required. At present, the existing data sharing method without a trusted central node only supports two parties. Secret sharing, such as two-party secret sharing protocols based on oblivious tr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/08
CPCH04L9/085H04L9/0861
Inventor 魏文斌范涛陈天健
Owner WEBANK (CHINA)
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