A data storage and query method based on a block chain

A data storage and data query technology, applied in database indexing, digital data protection, structured data retrieval, etc., can solve the problems of source data not being updated in time, data out of synchronization, etc., to solve data islands, ensure sharing, and ensure security and shared effects
CN109766342AActive Publication Date: 2019-05-17G CLOUD TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
G CLOUD TECH
Publication Date
2019-05-17

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Abstract

The invention relates to a data storage and query method based on a block chain. The method comprises storage and data query, wherein the data storage is characterized by converting data which is notdynamically written at present; randomly extracting an algorithm from the encryption algorithm supported by the system; sorting the field names in the database table into a list, adding table names and library names, and sequentially adding aliases to the attribute names of the list to form an attribute alias mapping table; at the same time, inquiring the aliases in the attribute alias mapping table according to input data and field names, and then forming an alias data mapping table; writing the new attribute alias mapping table into a database, and returning to the primary key; writing the alias data mapping table and the primary key into a block chain to form block chain data; The data query is characterized by combining the obtained alias data mapping table and the attribute alias mapping table and decrypting the alias data mapping table and the attribute alias mapping table by using a corresponding algorithm to obtain an attribute and data mapping table and obtain data. Accordingto the method, data are hidden in a two-layer mapping relation, and the data security and sharing are ensured based on a block chain.
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Description

technical field

[0001] The invention relates to the technical field of data storage and query, in particular to a data storage and query method based on blockchain. Background technique

[0002] With the rapid development of information technology, various business support systems are also increasing, making information systems diverse. Data between systems cannot flow, forming data islands. In real business, data flow between systems is required to meet business needs. If the data cannot flow, it is necessary to copy the data required by each business system to form multiple copies of data; at this time, the source data will not be updated in time, resulting in data out of sync, and bringing new problems to business support. Therefore, if the data can have a unique data source, it is the best way to solve the problems of data islands and data out of synchronization. At the same time, the blockchain has the characteristics of multiple copies, which can avoid unexpected ev...

Claims

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