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Block chain transaction initiation and verification method and system

A blockchain and transaction technology, applied in the field of information, can solve the problems of different transaction hash values, user troubles, etc.

Active Publication Date: 2021-06-01
ALIPAY (HANGZHOU) INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The transaction re-initiated by the client not only contains the fixed transaction content, but also contains the modified transaction timestamp. There will be a problem that the fixed transaction content will generate different transaction hash values, which will cause trouble for users

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  • Block chain transaction initiation and verification method and system
  • Block chain transaction initiation and verification method and system
  • Block chain transaction initiation and verification method and system

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Embodiment Construction

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present specification, the following briefly introduces the drawings that need to be used in the description of the embodiments. Apparently, the accompanying drawings in the following description are only some examples or embodiments of this specification, and those skilled in the art can also apply this specification to other similar scenarios. Unless otherwise apparent from context or otherwise indicated, like reference numerals in the figures represent like structures or operations.

[0021] It should be understood that "system", "device", "unit" and / or "module" as used herein is a method for distinguishing different components, elements, components, parts or assemblies of different levels. However, the words may be replaced by other expressions if other words can achieve the same purpose.

[0022] As indicated in this specification, words such as "a", "an", "an" and / or "the" are ...

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Abstract

The embodiment of the invention discloses a block chain transaction initiation and verification method and system. For the fixed transaction content, a user side initiates a first transaction, the first transaction comprises first transaction data and a first random factor, and the first transaction data comprises the transaction content and a first timestamp; And after confirming that the first transaction fails to be linked, the user side calculates a second random factor at least based on the second transaction data and the private key of the user, and sends the second transaction to the block chain network. Wherein the second transaction comprises second transaction data and a second random factor, and the second transaction data comprises the transaction content and a second timestamp. The second random factor enables the output of the chameleon hash function when the second transaction data, the second random factor and the public key of the user are input to be equal to a transaction hash value, and the transaction hash value is the output of the chameleon hash function when the first transaction data, the first random factor and the public key of the user serve as input.

Description

[0001] Case Description [0002] This application is a divisional application of the Chinese invention patent 202011247837.8 entitled "A method and system for blockchain transaction initiation and verification". technical field [0003] This specification relates to the field of information technology, in particular to a blockchain transaction initiation and verification method and system. Background technique [0004] In the blockchain system, the transaction initiated by the client may not be executed by the blockchain node in the end (also known as chain failure). The transaction re-initiated by the client not only contains the fixed transaction content, but also contains the modified transaction timestamp. There will be a problem that the fixed transaction content will generate different transaction hash values, which will cause troubles for users. [0005] In view of this, it is hoped to provide a scheme that can keep the transaction hash value unchanged after the tran...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q20/38
CPCG06Q20/3829G06Q20/389
Inventor 李艳鹏陆旭明
Owner ALIPAY (HANGZHOU) INFORMATION TECH CO LTD