Blockchain access authorization method and node

A technology for accessing nodes and blockchains, applied in the blockchain field, can solve problems such as leakage, increasing private data, and reducing transaction concurrency efficiency, so as to improve reliability and efficiency and get rid of dependence bottlenecks

Pending Publication Date: 2020-10-13
INDUSTRIAL AND COMMERCIAL BANK OF CHINA
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] Although the blockchain network participates in a large number of accounting consensus nodes, in most cases transactions only occur between a limited number of transaction parties, such as: private item transactions, information sharing, data transfer, etc.,

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  • Blockchain access authorization method and node
  • Blockchain access authorization method and node
  • Blockchain access authorization method and node

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[0054] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0055] The consensus accounting node in the blockchain network must add blocks after the consensus is completed to ensure the completeness of the information of each node in the network. However, when actual transactions occur, not all transactions require a consensus across the entire network, but transactions only require consensus within a limited range. Therefore, in order to solve the problem of the traditional blockchain that requir...

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Abstract

The invention provides a blockchain access authorization method and a node. The method comprises the following steps: obtaining attribute information of an access node by utilizing a consensus accounting node, and then generating an attribute key according to the attribute information; enabling the access node requesting to access to also generate the same attribute key according to the attributeinformation of the access node, and therefore decrypting the transaction information encrypted by the consensus accounting node by using the attribute key generated by the consensus accounting node, so the security problem that a data owner shares transaction information in a limited manner can be effectively solved. According to the invention, the data provider is used as the provider of the CA certificate, and also serves as an authorization main body to design a ciphertext strategy; in other words, the attribute encryption is performed by providing an attribute strategy based on the ciphertext strategy, and an information access user applies for an access right through a blockchain network; the method gets rid of the dependence bottleneck on an authentication center CA, and the reliability and efficiency of privacy protection of transaction data are improved.

Description

technical field [0001] The invention belongs to the technical field of block chains, specifically, an access authorization method and nodes of block chains are designed. Background technique [0002] As the Internet leaps from information interconnection to value interconnection to order interconnection, blockchain technology emerges as the times require. Blockchain technology is a decentralized consensus accounting technology that is decentralized, tamper-proof, and open. Features such as transparency. In order to reduce the risk of collusion caused by the large-scale computing resource control network, the blockchain network adopts the method of group consensus to ensure the consistency of transactions. Group consensus is a mechanism that uses multi-node joint bookkeeping and voting. Specifically, the blockchain network is composed of several consensus bookkeeping nodes. Each bookkeeping node stores the full amount of books and votes independently to form a group decisio...

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Application Information

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IPC IPC(8): G06F21/62G06F21/60
CPCG06F21/6245G06F21/602G06F21/604G06F2221/2141
Inventor 罗强苏恒黄大光吴业骏
Owner INDUSTRIAL AND COMMERCIAL BANK OF CHINA
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