Method and device for generating and verifying hidden payment certificates applied to blockchain
A blockchain and proof technology, which is applied in the field of generation and verification of hidden payment proofs, and can solve the problems of low efficiency of blockchain transactions.
Active Publication Date: 2021-07-06
WEBANK (CHINA)
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Problems solved by technology
[0004] The present invention provides a hidden payment certificate generation and verification method and device applied to the block chain, which solves the problem of low efficiency of block chain transactions in the prior art
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[0031] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0032] The definitions of terms appearing in this application are firstly listed below.
[0033] Blockchain: such as figure 1 As shown, the blockchain is a chain composed of a series of blocks. In addition to recording the data of this block, each block also records the Hash value of the previous block. In this way, a chain is formed. There are two core concepts of the blockchain, one is cryptography technology, and the other is the id...
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The invention discloses a method and device for generating and verifying a hidden payment certificate applied to a block chain, wherein the method is: according to the first random number, the proof commitment factor and the first transaction object, the first part of the hidden payment certificate is generated part; generate a second subpart based on the second random number, the proof commitment factor and the first key; generate a third subpart based on the third random number, the proof commitment factor and the intermediate credential factor; The fourth random number, the proof commitment factor and the intermediate key generate a fourth subpart; according to the first random number, the third random number, the fifth random number, the proof commitment factor, the first transaction object, said first key, said second key and said intermediate key, generating a fifth subsection. When the above method is applied to financial technology (Fintech), the generation efficiency of hidden payment proofs is improved.
Description
technical field [0001] The invention relates to the blockchain field in Fintech, in particular to a method and device for generating and verifying hidden payment certificates applied to the blockchain. Background technique [0002] With the development of computer technology, more and more technologies are applied in the financial field, and the traditional financial industry is gradually transforming into financial technology (Fintech) and blockchain (blockchain). However, due to the security and real-time requirements of the financial industry, It also places higher demands on technology. In the existing blockchain transaction method, when verifying the correctness of the hidden payment transaction, it is necessary to generate a hidden payment certificate through the algebraic relationship of addition or multiplication of the encrypted object (such as the transaction amount) in the anonymous equity certificate, and verify it, so that Determine the correctness of encrypted...
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IPC IPC(8): G06Q40/04G06Q20/38G06Q20/40
CPCG06Q20/3829G06Q20/401G06Q40/04
Inventor 李昊轩严强廖飞强李辉忠张开翔范瑞彬
Owner WEBANK (CHINA)