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Data management method and device based on block chain

A data management and blockchain technology, applied in the computer field, can solve problems such as increasing the risk of malicious data theft and data tampering, reducing the possibility of tampering, improving security, and avoiding theft and tampering.

Pending Publication Date: 2020-02-28
LI ZHAN SHANGHAI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For ordinary users, user data is stored openly and transparently in each accounting node of the blockchain network, which will increase the risk of user data being maliciously stolen by intruders
Moreover, the terminal equipment used by users can usually access the blockchain network, but it may not join the blockchain network as a node of the blockchain network; In the process of obtaining data from the blockchain, the data is tampered with in order to achieve a specific business purpose

Method used

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  • Data management method and device based on block chain
  • Data management method and device based on block chain
  • Data management method and device based on block chain

Examples

Experimental program
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Embodiment Construction

[0054] figure 1 A schematic diagram of the system framework of the embodiment of the present specification is shown. Such as figure 1 As shown, the blockchain network (or referred to as the blockchain system) 10 can include multiple blockchain nodes 101; each blockchain node 101 of the blockchain network 10 has the ability to broadcast transactions containing data to the entire The ability of the blockchain network 10; the blockchain node 101 as a billing node can package the transactions it receives into blocks and add them to the blockchain to store data in the blockchain.

[0055] In each of the blockchain nodes 101 included in the blockchain network 10, each node will store the same transaction, that is, each node of the blockchain network 10 stores the same data; and, the blockchain stored in the node Among the two adjacent blocks included, the block packed later is associated with the block packed earlier. In this way, the data stored in the blockchain is non-tamperable.

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Abstract

The embodiment of the invention discloses a data management method and device based on a block chain, the data management method and device based on the block chain are applied to terminal equipment,and the method at least can comprise the following steps: determining target data to be stored in the block chain and identification information of the target data; calculating a first abstract valueof the target data according to a preset abstract algorithm; encrypting the target data by using a first key to form ciphertext data; and associatively storing the ciphertext data, the first abstractvalue and the identification information to a block chain. Through the technical scheme of the embodiment of the invention, the data can be more effectively prevented from being stolen and tampered byan intruder, so that the security of the data is improved.

Description

Technical field [0001] This specification relates to the field of computer technology, and in particular to blockchain-based data management methods and devices. Background technique [0002] Blockchain uses chained data structure to verify and store data, uses distributed node consensus algorithm to generate and update data, and uses cryptography to ensure the security of data transmission and access between distributed nodes. Blockchain technology is essentially a decentralized distributed database technology. Data is stored openly and transparently in each accounting node of the blockchain network, so that the data stored in the blockchain cannot be tampered with. characteristic. [0003] For ordinary users, the user's data is stored openly and transparently in each accounting node of the blockchain network, which will increase the risk of the user's data being maliciously stolen by intruders. Moreover, the terminal devices that users use daily can usually access the blockchai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/60
CPCG06F21/602
Inventor 李立中李知旃
Owner LI ZHAN SHANGHAI TECH CO LTD
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