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Data management method, device and system based on block chain, equipment and medium

A technology of data management and block chain, applied in the field of block chain, can solve the problems of inability to detect illegal modification of the preset database in time, low data query efficiency, low data security, etc., to ensure data security and facilitate data Reasonable effect of verification and data management

Active Publication Date: 2021-05-25
HANGZHOU QULIAN TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] This application provides a blockchain-based data management method, device, system, equipment and medium, aiming to solve the technology of low data security due to the low efficiency of data query and the inability to detect illegal modification of the preset database in time question

Method used

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  • Data management method, device and system based on block chain, equipment and medium
  • Data management method, device and system based on block chain, equipment and medium
  • Data management method, device and system based on block chain, equipment and medium

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Embodiment Construction

[0060] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present invention.

[0061] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " The orientation or positional relationship indicated by "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation shown in the drawings Or positional relationship is only for the convenience of describing the present invention an...

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Abstract

The embodiment of the invention provides a data management method, device and system based on a block chain, equipment and a medium. The method comprises the following steps: receiving a data storage event, adjusting a flag bit of a hash relationship table association trigger in a preset database, and storing target data to be stored in the data storage event to the preset database; storing the data index and the data hash of the target data to a hash mapping table in a block chain and the hash relationship table in the preset database, and recovering the flag bit of the hash relationship table association trigger in the preset database; receiving a data query event, obtaining target data in the preset database hash relationship table and first data hash of the target data, and obtaining second data hash in the hash mapping table in the block chain; if the first data hash is the same as the second data hash, taking the target data as a query result and outputting the query result. According to the method, the data query efficiency and the data security are ensured.

Description

technical field [0001] The present application relates to the technical field of block chain, and specifically relates to a data management method, device, system, equipment and medium based on block chain. Background technique [0002] With the rapid development of computer technology, the amount of data is increasing. The default database system is the basis and support for data storage and processing. Its security and efficiency are of great significance for the development of new infrastructure construction and the use of basic data resources. . [0003] At present, the data is stored in the preset database, and the data index and data hash are stored on the chain. When querying, the data index of the blockchain is obtained, and then the preset database is queried according to the index to obtain the data corresponding to the index. The target data, and generate the data hash of the target data, compare the generated data hash with the data hash stored in the blockchain...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/22G06F16/23G06F16/2458G06F21/62
CPCG06F16/2255G06F16/23G06F16/2471G06F21/6227
Inventor 匡立中张帅李伟谢杨洁刘奇
Owner HANGZHOU QULIAN TECH CO LTD
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