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Data transmission method, blockchain network and storage medium

A data transmission method and blockchain technology, applied in the fields of data transmission methods, blockchain networks and storage media, can solve problems such as low data distribution efficiency, and achieve the effect of improving data distribution efficiency

Pending Publication Date: 2021-08-10
卓尔智联(武汉)研究院有限公司
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Problems solved by technology

[0003] In view of this, the embodiment of the present application provides a data transmission method, blockchain network and storage medium to at least solve the problem of low efficiency of data distribution in related technologies

Method used

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  • Data transmission method, blockchain network and storage medium
  • Data transmission method, blockchain network and storage medium
  • Data transmission method, blockchain network and storage medium

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Embodiment Construction

[0043] In related technologies, when data is distributed on the blockchain, each data is encrypted with an independent key. In order for a specific user to obtain the plaintext of a certain data, it is necessary to distribute the key corresponding to this data to these specific users. , that is to say, the data distribution process requires a lot of key distribution work, resulting in inefficient data distribution on the blockchain.

[0044] Based on this, in the solution provided by the embodiment of this application, the first user node encrypts the first plaintext based on the first key to obtain the first ciphertext, and based on the first user node selects some or all of the user nodes in the blockchain network As a set access strategy, the first key is encrypted by the CP-ABE algorithm to obtain the second ciphertext, and the first user node sends the first ciphertext and the second ciphertext to the second user node through the blockchain network , when the node attribu...

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Abstract

The invention discloses a data transmission method, a blockchain network and a storage medium, and the data transmission method is applied to a first user node in the blockchain network, and comprises the steps: encrypting a first plaintext based on a first key to obtain a first ciphertext; based on an access strategy, encrypting the first key through an attribute encryption CP-ABE algorithm of a ciphertext strategy to obtain the second ciphertext, wherein the access strategy represents a part of or all user nodes in the blockchain network selected by the first user node; and sending the first ciphertext and the second ciphertext to a blockchain network.

Description

technical field [0001] The present application relates to the technical field of information security, and in particular to a data transmission method, a blockchain network and a storage medium. Background technique [0002] In related technologies, when data is distributed on the blockchain, each data is encrypted with an independent key. In order for a specific user to obtain the plaintext of a certain data, it is necessary to distribute the key corresponding to this data to these specific users. , that is to say, the data distribution process requires a lot of key distribution work, resulting in inefficient data distribution on the blockchain. Contents of the invention [0003] In view of this, the embodiment of the present application provides a data transmission method, a blockchain network, and a storage medium, so as to at least solve the problem of low efficiency of data distribution in related technologies. [0004] The technical scheme of the embodiment of the a...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L9/32H04L9/30H04L29/08
CPCH04L63/0428H04L63/10H04L9/3263H04L9/302H04L67/10
Inventor 李纯懿
Owner 卓尔智联(武汉)研究院有限公司
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