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Method for eliminating double flowers in blockchain system, computer readable storage medium and blockchain system

A blockchain and double-spend technology, applied in the blockchain field, can solve the problems of blockchain network security reduction and achieve the effect of improving security and preventing double-spend attacks

Active Publication Date: 2020-09-25
杜晓楠
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Problems solved by technology

If two different transaction users grab the bookkeeping right of the same transaction information, the two different transaction users can record the same transaction information in different blocks and record the same transaction information in different blocks. The block is broadcast to the blockchain network, causing the same bitcoin to take effect in two transactions, the so-called double flower attack, which reduces the security of the blockchain network

Method used

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  • Method for eliminating double flowers in blockchain system, computer readable storage medium and blockchain system
  • Method for eliminating double flowers in blockchain system, computer readable storage medium and blockchain system
  • Method for eliminating double flowers in blockchain system, computer readable storage medium and blockchain system

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Embodiment Construction

[0035] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0036] The invention relates to a method for eliminating double spending in a block chain system. The transaction initiator scans the blockchain system for transaction outputs directed to the transaction initiator. The transaction initiator screens the transaction output that needs to be spent according to the receiver's amount, and uses the transaction initiator's own private key to sign the transaction output that needs to be spent, and writes the signature information into a new transaction, and then writes the The new transaction is sent to the blockchain system. The blockchain system verifie...

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Abstract

The invention relates to a method for eliminating double flowers in a block chain system. A transaction initiator scans the blockchain system to obtain transaction output pointing to the transaction initiator. The transaction initiator screens out transaction output needing to be spent according to the amount of money of the receiver, signs the transaction output needing to be spent by adopting aprivate key of the transaction initiator, writes signature information into a new transaction, and then sends the new transaction to the blockchain system. A block chain system verifies the signatureinformation after receiving the new transaction, and judges whether double-flower exists or not based on a verification result. The invention also relates to a computer readable storage medium and a blockchain system. According to the method and the device, double-flower attacks can be prevented, so that the safety of the blockchain network is improved.

Description

technical field [0001] The present invention relates to the field of blockchain, and more specifically, to a method for eliminating double spending in a blockchain system, a computer-readable storage medium and a blockchain system. Background technique [0002] Blockchain technology is a shared distributed database technology, and its advantages are mainly manifested in distributed decentralization, trustless systems, non-tamperable and encrypted security. It is a technology that uses a decentralized consensus mechanism to maintain a complete, distributed, and non-tamperable ledger database. It enables participants in the blockchain to achieve a unified consensus without establishing a trust relationship. ledger system. [0003] In the blockchain network, when a transaction user grabs the accounting right of a transaction information, the transaction user can record the transaction information in a block and broadcast the block to the blockchain in the network. If two dif...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q20/38
CPCG06Q20/382
Inventor 杜晓楠
Owner 杜晓楠
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