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Block chain-based information confirmation method and device, electronic equipment and storage medium

An information confirmation and blockchain technology, applied in the blockchain field, can solve the problems of invisible channel data, inability to guarantee data management and control, and increase the number of multi-party secure computing and interactive communications, so as to reduce the number of interactions, ensure safe sharing, The effect of improving security and computational efficiency

Active Publication Date: 2022-05-03
INDUSTRIAL AND COMMERCIAL BANK OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still the following problems in terms of user data privacy protection: (1) Although the blockchain has a relatively safe operating environment, the data is essentially private, and the participants have no data control and traceability means for their own data. It is also impossible to guarantee that the data is under its own control. For example, in the blockchain system, once the data is taken away, the participants will no longer have the control and ownership of the data; (2) the blockchain has a physical channel data isolation mechanism, The data between channels is invisible to each other, which limits the application of trusted data transfer between parties on the blockchain across scenarios and organizations
[0004] In related technologies, multi-party secure computing is used as an encryption protocol to perform data calculation in a distributed system. During the calculation process, each participant jointly executes a calculation function with parameters under the condition that the input parameters of other participants cannot be obtained. If the calculation function gets input parameters from enough participants, the secret can emerge and spread within the scope of the common participants. Although this method can perform safe and confidential calculations on the data without each participant needing to disclose or upload data, However, it also increases the number of interactive communications for multi-party secure computing. If the multi-party computing parties are described as a circle, theoretically, the number of interactive communications in the multi-party computing process is proportional to the number of members that make up the circle. In this case, the number of interactive communications will have a great impact on the performance of secure computing
[0005] For the above problems, no effective solution has been proposed

Method used

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  • Block chain-based information confirmation method and device, electronic equipment and storage medium
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  • Block chain-based information confirmation method and device, electronic equipment and storage medium

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0054] According to an embodiment of the present invention, an embodiment of a blockchain-based information confirmation method is provided. It should be noted that the steps shown in the flow chart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions , and, although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0055] figure 1 is a flow chart of an optional blockchain-based information confirmation method according to an embodiment of the present invention, such as figure 1 As shown, the method includes the following steps:

[0056] Step S101, receiving a transaction message transmitted by a secure computing node.

[0057]Step S102, based on the transaction message, obtain the transaction data required for the secure computing transaction, and send the transaction data to the secure computing no...

Embodiment 2

[0125] According to an embodiment of the present invention, another embodiment of a block chain-based information confirmation method is provided. It should be noted that the steps shown in the flow chart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions and, although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0126] Figure 4 is a flow chart of another optional blockchain-based information confirmation method according to an embodiment of the present invention, such as Figure 4 As shown, the method includes the following steps:

[0127] Step S401, receiving a secure computing transaction request initiated by a client, and assembling the secure computing transaction request into a transaction message.

[0128] Step S402, segmenting the transaction message to obtain multiple fragmented mess...

Embodiment 3

[0185] Figure 6 is a schematic diagram of an optional blockchain multi-party secure computing system framework according to an embodiment of the present invention, such as Figure 6 As shown, including: customer access layer, multi-party secure computing network, blockchain network, among which,

[0186] Client access layer: responsible for providing operator access client software (including: client A, client B, etc.), which is convenient for initiating multi-party secure computing requests and receiving multi-party secure computing results. The client can publish the chain code (that is, the smart contract) on the blockchain network. After the customer generates behavior data, he can call the chain code to initiate a transaction request, upload the behavior data to the chain, and submit it to the channel corresponding to each scenario according to the customer's usage scenario (clients can directly send customer behavior data without processing, and the specific data proce...

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PUM

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Abstract

The invention discloses an information confirmation method and device based on a block chain, electronic equipment and a storage medium, and relates to the technical field of block chains, the confirmation method comprises the following steps: receiving a transaction message transmitted by a security computing node, based on the transaction message, obtaining transaction data required during security computing transaction, and sending the transaction data to a server; the method comprises the steps of receiving transaction data, sending the transaction data to a plurality of security computing nodes, receiving computing results transmitted by the plurality of security computing nodes, carrying out joint computing on the plurality of computing results to obtain a joint computing result, verifying the correctness of the joint computing result by adopting a pre-configured consensus mechanism, obtaining consensus information, and broadcasting the consensus information to a block chain. According to the method and the device, the technical problem of relatively low security calculation efficiency under the condition of ensuring security sharing of data of each participant in the related technology is solved.

Description

technical field [0001] The present invention relates to the technical field of block chains, in particular, to a block chain-based information confirmation method and device, electronic equipment and storage media. Background technique [0002] In a traditional distributed system, all parties involved in the system need to exchange data around the regional center system. All inter-agency business processes in the system must be processed through the central system. Data processing is subject to the processing time of the central system. The timeliness is low. At the same time, due to considerations of data privacy and business interests, all participants in the system are unwilling to share internal data maliciously. Even if leaked private pictures and documents are found, there is no way to trace and retrieve them. right. [0003] With the development of blockchain technology, the characteristics of the blockchain system such as decentralization, non-tampering, and traceab...

Claims

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Application Information

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IPC IPC(8): H04L9/32
CPCH04L9/3239H04L9/3247H04L2209/46
Inventor 罗强苏恒刘朝伟岑健明
Owner INDUSTRIAL AND COMMERCIAL BANK OF CHINA