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A safe multi-party calculation method and a related device

A secure multi-party computing and multi-party computing technology, which is applied in the field of distributed computing and cloud computing, can solve the problems of low security and low collaboration efficiency, and achieve the effects of improving security, ensuring privacy, and realizing diversity

Active Publication Date: 2019-02-19
CHINA UNIONPAY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a secure multi-party computing method and related devices to solve the problems of low coordination efficiency and low security in the implementation of blockchain

Method used

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  • A safe multi-party calculation method and a related device
  • A safe multi-party calculation method and a related device
  • A safe multi-party calculation method and a related device

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Embodiment Construction

[0076] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0077] The following takes Ethereum as an example to illustrate smart contracts based on blockchain technology.

[0078] In the prior art, there are two types of accounts in Ethereum: external accounts and contract accounts. External accounts are controlled by private keys (controlled by people) and are not associated with any code. An external account can sign a transaction with a private key, and then send a message to another extern...

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Abstract

The invention discloses a safe multi-party computing method and a related device. The method comprises the following steps: a first node determines a task of an intelligent contract to be executed bya contract party corresponding to the first node when processing the multi-party computing request according to the multi-party computing request; The intelligent contract includes tasks of each contractor executing the multi-party computing request and execution relationships among the tasks; The first node is any one of the contracting parties; The first node determines a second node according to the execution relationship among the tasks after the tasks to be executed are processed. The second node is a node corresponding to the next task among the contractors executing the multi-party computing request; The first node sends a notification message to the second node; The notification message is used to instruct the second node to process the multi-party computing request.

Description

technical field [0001] The present invention relates to the technical field of distributed computing and cloud computing, in particular to a secure multi-party computing method and a related device. Background technique [0002] Secure Multi-party Computation (SMPC) means that in a distributed network, multiple users need to work together to complete a task. Each user holds some private data as the input of the task, and they hope to complete it together. The calculation of these data also requires each user not to know any input information of other users except the calculation results. Secure multi-party computing is to solve the problem of collaborative computing between a group of participants who do not trust each other under the premise of protecting privacy. Secure multi-party computing must ensure the independence of inputs and the correctness of calculations, while not disclosing each input data to participants other members of the calculation. It is mainly aimed ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q20/06G06Q20/38G06Q40/04
CPCG06Q20/065G06Q20/3823G06Q40/04
Inventor 丁林润李春欢回春野曹鹏张栋孟凡高李硕孟宏文孟一飞
Owner CHINA UNIONPAY
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