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Data sharing method and data sharing system based on blockchain

A data sharing and blockchain technology, applied in the blockchain field, can solve problems such as data sharing security processing, inability to ensure data security, non-compliance, etc., to ensure credibility, trust, and security. Effect

Active Publication Date: 2019-04-16
ZHONGAN INFORMATION TECH SERVICES CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The inventor found that: the above-mentioned data sharing method directly opens the access right to the data demander after the consent of the data provider, which does not take into account the security of data sharing, so data security cannot be guaranteed; in addition, when the above-mentioned data sharing Methods that are prone to non-compliance or illegality due to lack of appropriate regulatory treatment

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  • Data sharing method and data sharing system based on blockchain
  • Data sharing method and data sharing system based on blockchain
  • Data sharing method and data sharing system based on blockchain

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Embodiment Construction

[0052] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only Some, but not all, embodiments of the invention. 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.

[0053] Additionally, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.

[0054] Unless the context clearly requires, throughout the specification and claims, "comprises", "comprises" and similar words should be interpreted in an inclusive sense rather than an exclus...

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Abstract

The invention discloses a data sharing method and a data sharing system based on a blockchain. The method comprises the following steps: a supervision node encrypts all the data for which a consensusis reached through a blockchain network, and records all the encrypted data on the blockchain; a first member node submits a data sharing request through the blockchain network, the data requested bythe data sharing request at least contain the data provided by a second member node; the supervision node and the second member node jointly examine and approve the data sharing request; if the data sharing request is approved, the supervision node performs decryption to obtain the data requested by the data sharing request from the blockchain; and the data requested by the request is encrypted based on a public key of the first member node, and the encrypted data is returned back to the first member node, thus, the first member node is enabled to acquire the requested data by an own private key through decryption. With the method and the system provided by the invention, security of data sharing can be guaranteed, and occurrence of noncompliant or illegal situations caused by lack of supervision treatment in data sharing can be avoided.

Description

technical field [0001] The invention relates to the technical field of block chains, in particular to a data sharing method and system based on block chains. Background technique [0002] In recent years, blockchain (Blockchain) technology has received widespread attention and development, and is gradually being applied in many fields such as banking, finance, and insurance. Blockchain technology, also known as "distributed ledger technology", is a technical solution for decentralization and collective maintenance of distributed ledgers. Its essence is a distributed database system that is collectively participated by multiple nodes. [0003] In the blockchain distributed system, the existing data sharing method is usually that the data provider publishes the data description information to the blockchain, and the data demander obtains the data description information released by the data provider from the blockchain, and selects Target data, and publish the data permission...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08H04L29/06G06F21/60G06F21/62
CPCH04L63/0442H04L63/08H04L67/10G06F21/602G06F21/6218H04L67/60
Inventor 刘雄文
Owner ZHONGAN INFORMATION TECH SERVICES CO LTD
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