Quantum blockchain construction method based on entrusting profit certification extension

A construction method and blockchain technology, applied in the field of quantum blockchain construction based on entrusted proof-of-stake expansion, can solve the problems of reducing expansion costs, inability to be widely used, and high expansion costs, and achieve the goal of improving scalability and reducing expansion costs. Effect

Active Publication Date: 2019-11-19
GUANGDONG UNIV OF TECH
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Problems solved by technology

[0005] In order to overcome the defects of high expansion cost and inability to be widely used in the above-mentioned prior art, the present invention provides a quantum block chain construction method based on entrusted proof of rights and interests expansion. Super nodes are obtained through elections, and each node and the elected Super nodes establish QKD channels, which can effectively reduce their expansion costs

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  • Quantum blockchain construction method based on entrusting profit certification extension

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Embodiment Construction

[0022] The accompanying drawings are for illustrative purposes only and cannot be construed as limiting the patent;

[0023] In order to better illustrate this embodiment, some parts in the drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product;

[0024] For those skilled in the art, it is understandable that some well-known structures and descriptions thereof may be omitted in the drawings.

[0025] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0026] Such as figure 1 As shown in the figure, it is a flow chart of the method for constructing a quantum blockchain based on the extension of delegated proof of rights and interests in this embodiment.

[0027] This embodiment proposes a quantum blockchain construction method based on entrusted proof-of-stake extension, including the following steps:

[0028] S1: Every certain time interv...

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Abstract

The invention provides a quantum blockchain construction method based on entrusting profit certification extension, which comprises the following steps: voting by whole network nodes according to theproportion of owned blockchain profit, and electing k super nodes from the whole network nodes; preparing and distributing entangled quantum pairs between each node and each super node, and establishing a QKD channel; generating a security key by the node intending to publish the transaction and the corresponding k super nodes through a QKD channel; printing a verification label on the transactioninformation through the security key by adopting a verification algorithm and then broadcasting the transaction information by the node intending to publish the transaction; respectively receiving the transaction information and then verifying the transaction information by the super nodes; sorting the transaction information in the current time window to generate blocks by the super nodes; negotiating with each other by every two of the k super nodes, if a final block exists, performing broadcasting through the super nodes, and receiving the final block and then adding the final block into the last received block by the common nodes until all the super nodes complete a block output process.

Description

technical field [0001] The present invention relates to the technical field of block chain, and more specifically, relates to a method for constructing a quantum block chain based on entrusted proof of rights and interests expansion. Background technique [0002] As a distributed ledger technology, blockchain has the characteristics of decentralization, transparency, non-tampering, consensus trust, and cross-platform. It has been widely used in electronic currency, supply chain logistics, and intellectual property protection. However, when the quantum era is approaching, the hash algorithm associated with its mining and previous blocks will be increased by the Quantum Grover algorithm to increase the risk of being attacked by search collisions, and the Elliptic Curve Digital Signature Algorithm (ECDSA) and RSA digital signature used for signatures Under the threat of quantum Shor's algorithm, the algorithms such as are also in jeopardy. [0003] In response to these problem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/08
CPCH04L9/0852H04L9/0858
Inventor 劳南新王帮海
Owner GUANGDONG UNIV OF TECH
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