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Data circulation method based on block chain and enclave

A secure execution environment and blockchain technology, applied in secure communication devices, digital transmission systems, user identity/authority verification, etc., can solve problems such as the immature scalability of the number of participants, and ensure auditability and reliability. The effect of traceability and privacy assurance

Active Publication Date: 2019-04-19
余炀
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

The usage scenarios of secure multi-party computing are relatively few, mainly in some specific scenarios, for some specific calculation logics such as comparing sizes or determining intersections, etc. For general multi-party computing scenarios, the scalability of the number of participants is not yet mature

Method used

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  • Data circulation method based on block chain and enclave

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Embodiment Construction

[0033] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0034] The present invention mainly involves three types of participants: data demander: put forward data requirements, verify the results and complete payment; data provider: data holder; data executor: protected by SGX, provide a secure computing platform, complete Operations related to logic.

[0035] The present invention defines abbreviations and key terms respectively, among them, TEE: Trusted ExecutionEnvironment, Trusted Execution Environment; Enclave: Secure Execution Environment; SGX: Software...

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Abstract

The invention provides a data circulation method based on a block chain and an enclave. Privacy of a data processing process is ensured through utilization of a trusted computation environment provided by SGX (Software Guard Extensions), and moreover, the privacy of a data transmission process is ensured through utilization of an encrypted channel, so private data is prevented from being leaked ina whole process. According to the method, data integrity and legality are ensured through utilization of the block chain, a participant cannot fabricate data on the chain and moreover, and moreover,data quality is verifiable. According to the method, correct execution of a computation task is ensured through utilization of a smart contract, and rights and interests are rationally allocated. Traceability and auditability of a computation process are ensured through recording of operation logs on the chain.

Description

technical field [0001] The present invention relates to the field of computer data processing, in particular to a data circulation method based on blockchain and a secure execution environment. Background technique [0002] In recent years, with the development of the big data industry, the value of data has gradually become prominent. As a key link, data circulation can connect the data generation end and the data application end, thereby promoting the realization of the value of data. With the development of technology, the data circulation market is gradually transforming. On the one hand, data is different from traditional commodities, for example, it is easy to copy, which makes it easy to lose value in traditional trading methods, and for privacy and security reasons, raw data often cannot be traded directly. Instead, new ways of withdrawing and transacting are required. At present, most enterprises tend to use services to package data, changing from selling data to...

Claims

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Application Information

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IPC IPC(8): H04L9/32H04L29/06
CPCH04L9/3247H04L63/1425
Inventor 余炀
Owner 余炀
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