Data storage access method and system based on blockchain and cloud platform

A technology for data storage and access methods, applied in digital transmission systems, transmission systems, digital data protection, etc., can solve problems such as multiple business audit levels, opaque audit standards, and poor traceability, so as to improve consensus efficiency and security and reliability, to ensure consistency

Active Publication Date: 2020-08-11
YGSOFT INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be well applied to large enterprises to solve the problems of multiple business audit levels, opaque audit standards, poor traceability, and low trust

Method used

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  • Data storage access method and system based on blockchain and cloud platform
  • Data storage access method and system based on blockchain and cloud platform
  • Data storage access method and system based on blockchain and cloud platform

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A specific embodiment of the present invention discloses a data storage access method based on block chain and cloud platform, such as figure 1 shown, including:

[0046] Step S101, data storage step: the data owner encrypts and digitally signs the data to generate encrypted data, and uploads it to the cloud data storage server; sends the key required for decrypting the data to the cloud security server cluster; sends the metadata of the encrypted data The data is stored in the blockchain on the chain; the metadata includes the hash value and access conditions of the encrypted data;

[0047] Step S102, data access step: the data user sends a data access request to the block chain, and the access request includes the identity of the data user and the hash value of the access data; when the access request meets the access conditions, the cloud data storage server allows the data When a user accesses encrypted data, the cloud security server cluster sends a decryption key...

Embodiment 2

[0099] This embodiment discloses a data storage access system based on block chain and cloud platform, such as Figure 4 As shown, including cloud data storage server, cloud security server cluster, block chain, data providing subsystem and data application subsystem;

[0100] The cloud data storage server is used to store encrypted data;

[0101] The cloud security server cluster is used to store the key required for decrypting data;

[0102] The block chain is used to store metadata of the encrypted data, and the metadata includes hash values ​​and access conditions of the encrypted data;

[0103] During the data storage process, the data owner encrypts and digitally signs the data to generate encrypted data and uploads it to the cloud data storage server; sends the key required to decrypt the data to the cloud security server cluster; Stored on the chain in the blockchain;

[0104] During the data access process, the data user applies to the blockchain for a data access ...

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PUM

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Abstract

The invention relates to a data storage access method and system based on a blockchain and a cloud platform, belongs to the technical field of cloud storage and blockchain, and solves the security problem of data storage and access. The method comprises the steps: enabling a data owner to perform encryption and digital signature on data to generate encrypted data and uploading the encrypted data to a cloud data storage server; sending a decryption key required for decrypting the data to the cloud security server cluster; uploading and storing the metadata of the encrypted data in blockchain; and enabling a data user to send a data access request to the blockchain, when the access request meets an access condition, enabling the cloud data storage server to allow the data user to access theencrypted data, and enabling the cloud security server cluster to send a decryption key to the data user to decrypt the data to obtain plaintext information of the data. The storage capacity of the blockchain is expanded, and the consensus efficiency is improved; the data collaboration on and off a chain is realized, and data consistency is ensured; the security protection is carried out on the secret key, and the security and reliability of the system are improved.

Description

technical field [0001] The present invention relates to the technical fields of cloud storage and block chain, in particular to a data storage access method and system based on block chain and cloud platform. Background technique [0002] As the underlying driving technology of the world's largest digital currency platform—Bitcoin system, blockchain is essentially a new distributed database technology solution that integrates multiple technologies such as chain storage structure, cryptography, smart contracts, and hash operations. . It performs asymmetric encryption for each transaction and records them in different ledgers. The data on the chain can only be queried and added, and cannot be modified or deleted. Support different business logic. It can be well applied to large enterprises to solve the problems of multiple business audit levels, opaque audit standards, poor traceability, and low trust. However, large enterprises need to store a large amount of unstructured ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08H04L29/06H04L9/32H04L9/30G06F21/64G06F21/60G06F16/27
CPCH04L67/1097H04L63/0428H04L63/10G06F16/27G06F21/602G06F21/64H04L9/3247H04L9/30
Inventor 程晗蕾鲁静宋斌段焱明
Owner YGSOFT INC
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