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A blockchain data privacy protection method with introduction of an arbitration mechanism

A data privacy and blockchain technology, applied in the field of blockchain data protection, can solve problems such as stealing information and sensitive data without protection, and achieve the effect of protecting privacy, achieving high privacy, and protecting security

Pending Publication Date: 2019-04-09
DALIAN FUTURES INFORMATION TECH
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  • Claims
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Problems solved by technology

The simulated execution results obtained by invoking smart contracts in Fabric are spread in the network in plain text, which makes it easy for malicious nodes in the network to steal information; in addition, the channel mechanism in Fabric can only protect the ledger data from being transmitted across channels , not to be accessed and abused by unauthorized nodes, but under the same channel, the data is still transparently visible, which still has no protective effect on sensitive data

Method used

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  • A blockchain data privacy protection method with introduction of an arbitration mechanism
  • A blockchain data privacy protection method with introduction of an arbitration mechanism
  • A blockchain data privacy protection method with introduction of an arbitration mechanism

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Embodiment Construction

[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the drawings in the embodiments of the present invention:

[0035] Such as Figure 1-3 As shown, the blockchain data privacy protection method that introduces the arbitration mechanism includes the following steps:

[0036] Step S1: Set up an arbitration node that participates in transactions in the blockchain network and is responsible for arbitrating the legality of transactions;

[0037] Step S2: Set up smart contracts that implement different node calls and can only return partial execution results;

[0038] Step S3: The endorsement node invokes the smart contract and encrypts the execution result using an asymmetric encryption algorithm;

[0039] Step S4: The arbitration node invokes the smart contract and encrypts th...

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Abstract

The invention discloses a blockchain data privacy protection method with introduction of an arbitration mechanism. data isolation is realized, and each node can only obtain a data result related to its own node by calling a smart contract. Meanwhile, the data transmitted in the block chain network and the data stored in the block chain account book are encrypted and decrypted, the transmission safety of the data information in the block chain network is protected, and malicious attacks and tampering are prevented. And meanwhile, the privacy of the account book data recorded in the block chainis protected, and the real meaning of the data is not known by other nodes. The verification of the authenticity and effectiveness of the transaction is realized through the introduced arbitration node, and meanwhile, the arbitration node can be used for auditing and monitoring. According to the invention, the detection of the effectiveness of the online transaction is realized, the online transaction is ensured to be real and effective, the high privacy of the online data is realized, and only the owner of the data can access and operate the real data.

Description

technical field [0001] The invention relates to a method for protecting privacy data, in particular to a method for protecting privacy of blockchain data by introducing an arbitration mechanism, and belongs to the field of blockchain data protection. Background technique [0002] Existing blockchain technologies generally use block chain data structures to verify and store data, use distributed node consensus algorithms to generate and update data, use cryptography to ensure the security of data transmission and access, and use A new distributed infrastructure and computing method that automates script code to form smart contracts to program and manipulate data. [0003] The Hyperledger Project is a blockchain project of the Linux Foundation, which is dedicated to the development of cross-industry commercial blockchain platform technology. HyperLedger Fabric is a sub-project under the Hyperledger project. It is an underlying blockchain platform developed using the Go langua...

Claims

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Application Information

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IPC IPC(8): G06Q40/04G06Q20/38G06F21/64
CPCG06F21/64G06Q20/3829G06Q40/04Y02D10/00
Inventor 夏韵刘军潘文锋柴春胜申春艳李博任志强裴红兵
Owner DALIAN FUTURES INFORMATION TECH
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