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Data query method and device based on blockchains, server and storage medium

A technology of data query and data storage system, which is applied in the fields of blockchain-based data query methods, servers and storage media, and devices, and can solve the problems of low data query security, poor flexibility, and inability to set query permissions for different data. Achieve the effect of improving security and privacy and improving flexibility

Active Publication Date: 2018-09-21
TENCENT TECH (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The current data query method only performs data query according to the permissions of the user account, and cannot set different levels of query permissions for different data, resulting in low security and poor flexibility for data query.

Method used

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  • Data query method and device based on blockchains, server and storage medium
  • Data query method and device based on blockchains, server and storage medium
  • Data query method and device based on blockchains, server and storage medium

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Embodiment Construction

[0028] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0029] In the following, some nouns appearing in the following detailed description are introduced:

[0030] Smart contract: A contract program that is automatically executed according to specific conditions is an important way for users to interact with the blockchain and use the blockchain to implement business logic. For example, various institutions can access the data storage system through the smart contract on the blockchain deployed in the server to use the data storage and data query functions provided by the data storage system.

[0031] Target policy: The target policy can be a kind of consensus policy, such as an endorsement policy, which can be used to indicate the necessary conditions to be met in the endorsement process ...

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Abstract

The invention discloses a data query method and device based on blockchains, a server and a storage medium and belongs to the technical field of networks. The method comprises the steps that data query is combined with a blockchain technology; when a request of a user for querying data is acquired, according to user identification and data identification, based on data permission information, a permission of the user for querying the data is queried; when it is determined that the user does not have the permission for querying the data, according to a target strategy in the data permission information, query allowances of multiple terminals are acquired; when the acquired query allowances accord with the target strategy, the data is acquired from a storage system. According to the method,by setting the data permission information, the safety and privacy of the data are improved, through different target strategies of different kinds of data, the flexibility of setting data query permissions is improved, and the device is safer and more intelligent.

Description

technical field [0001] The present invention relates to the field of network technology, in particular to a blockchain-based data query method, device, server and storage medium. Background technique [0002] With the development of network technology, the Internet can provide more and more services, and the amount of data generated by various services has also expanded rapidly. In the process of business processing, the storage of business data and storage-based queries will be involved. However, in the process of data query, data will be transmitted between devices. Therefore, data may be tampered with, leaked or stolen, which may endanger data security. Therefore, how to perform data query safely and efficiently has become a matter of great concern to people. . [0003] The current data query method is based on the authority of the user account. When receiving a data query request from any user, it will judge whether the user can query a certain business data according ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30G06F21/62
CPCG06F21/6218G06F2221/2141G06F16/2264G06F16/2282G06F16/2471G06F21/602H04L9/3239G06F21/64G06F16/9024H04L9/50Y02D10/00G06F21/6227H04L9/30
Inventor 尚志豪周洪飞
Owner TENCENT TECH (SHENZHEN) CO LTD
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