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Electric power data security sharing method and system based on homomorphic encryption smart contract

A smart contract, homomorphic encryption technology, applied in digital transmission systems, transmission systems, data processing applications, etc., can solve problems such as increasing hardware costs

Pending Publication Date: 2022-08-09
HARBIN INST OF TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

SGX technology requires special hardware facilities. In essence, it increases hardware constraints on blockchain participants (requires a CPU that supports TEE) in exchange for performance and privacy protection, thereby increasing hardware costs.

Method used

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  • Electric power data security sharing method and system based on homomorphic encryption smart contract
  • Electric power data security sharing method and system based on homomorphic encryption smart contract
  • Electric power data security sharing method and system based on homomorphic encryption smart contract

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Embodiment Construction

[0035] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0036] The invention implements a new type of power data security sharing scheme based on the Hyperledger Fabric hyperledger open source framework, uses the execution environment of smart contracts as a trusted computing environment for data processing and analysis, uses homomorphic encryption algorithms to prevent data leakage, and combines Figure 1-Figure 13 , The present invention proposes a method for safe sharing of power data ba...

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Abstract

The invention provides an electric power data security sharing method and system based on a homomorphic encryption smart contract. According to the method, a homomorphic encryption algorithm is arranged in an intelligent contract, and by performing homomorphic encryption on individual privacy fields of power data, a certain degree of calculation efficiency of the fields is sacrificed to exchange privacy guarantee. The intelligent contract completes the function of data analysis and calculation, only the calculation result is shared instead of source data, and the whole process is shared, so that the data security of a supplier and a demander is ensured, and data leakage is prevented.

Description

technical field [0001] The invention belongs to the technical field of data sharing, and in particular relates to a method and system for safe sharing of power data based on a homomorphic encryption smart contract. Background technique [0002] The current power data transaction sharing system based on blockchain technology has the advantages of multiple equal subjects, trustless transactions and record keeping (traceability), but there are still risks of leakage and abuse caused by the resale and backup of original data and untrustworthy data processing services. defect. Considering that the data demander generally needs the results of data analysis and does not directly use the original data, if only the operation results of the source data are traded instead of the source data, the source data leakage can be prevented. In order to solve the problem of trust in the computing environment, the analysis and calculation part of the data is transferred to the blockchain smart ...

Claims

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Application Information

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IPC IPC(8): G06F21/64G06F21/60G06Q50/06H04L9/00H04L67/02
CPCG06F21/64G06F21/602G06Q50/06H04L9/008H04L67/02Y04S10/50
Inventor 胡雅娟刘松崧华科叶强刘刚高超越胡开元林英杰温家俊马轩
Owner HARBIN INST OF TECH
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