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Processing method and device based on block chain system

A processing method and blockchain technology, applied in the field of processing methods and devices based on blockchain systems, can solve problems such as high cost and large computing overhead

Pending Publication Date: 2019-11-26
WEBANK (CHINA)
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Embodiments of the present invention provide a processing method and device based on a block chain system to solve the technical problems of large computational overhead and high cost of the block chain system caused by using Merkle trees to store state data in the prior art

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  • Processing method and device based on block chain system
  • Processing method and device based on block chain system
  • Processing method and device based on block chain system

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Embodiment Construction

[0045] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0046] The technical field of financial technology (Fintech) usually involves a variety of transactions. For example, bank transactions can include card sales transactions, deposit transactions, loan transactions, insurance transactions, wealth management transactions, etc. The daily transaction volume of banks can reach thousands or even several Thousands of strokes. With the gradual development of blockchain technology, blockchai...

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Abstract

The embodiment of the invention discloses a processing method and device based on a block chain system. The method comprises the following steps: when a node executes a transaction in a to-be-consensus block, generating a plurality of pieces of state data corresponding to the transaction, constructing a Bloom filter corresponding to the block by using the plurality of pieces of state data, and updating a block head of the block by using a hash value of the Bloom filter corresponding to the block; thus, after the node determines that the block consensus succeeds, the block header of the block being linked, and using the Bloom filter corresponding to the block and the multiple pieces of state data for updating the preset database of the node. According to the embodiment of the invention, compared with a data structure of a Merkle tree, the Bloom filter can use a common bit array to store a plurality of pieces of state data, so that the storage space can be well saved and the query response speed can be improved by using the Bloom filter to store the state data corresponding to the transaction, thereby reducing the calculation overhead and cost of the blockchain system.

Description

technical field [0001] The present invention relates to the field of financial technology (Fintech), in particular to a processing method and device based on a block chain system. Background technique [0002] With the development of computer technology, more and more technologies are applied in the financial field. The traditional financial industry is gradually transforming into financial technology (Fintech), and blockchain technology is no exception. However, due to the security and real-time requirements of the financial industry , Financial technology has also put forward higher requirements for blockchain technology. In the blockchain system, when a node processes a transaction in a block, it usually generates the state data corresponding to the transaction. For example, for a transfer transaction from account A to account B, the account balance of account A is the same as that of account B. The balance can be used as the state data generated in the transfer transact...

Claims

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Application Information

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IPC IPC(8): G06Q40/04G06F16/23G06F16/27
CPCG06Q40/04G06F16/23G06F16/27
Inventor 莫楠张开翔范瑞彬
Owner WEBANK (CHINA)
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