Blockchain-based reconciliation method and apparatus and electronic device

Patent metadata

Field	Value
Publication number	US-11228446-B2
Application number	US-202016876036-A
Country	US
Kind code	B2
Filing date	May 16, 2020
Priority date	May 10, 2019
Publication date	Jan 18, 2022
Grant date	Jan 18, 2022

Abstract

Methods, systems, and apparatus, including computer programs encoded on computer storage media, for blockchain-based reconciliation are provided. One of the methods includes: creating, by a first blockchain node associated with a blockchain, an account-processing record based on an account-processing operation; generating, by the first blockchain node, a digital signature on the account-processing record by encrypting a digest of the account-processing record using a private key associated with the first blockchain node; and uploading, by the first blockchain node, the account-processing record and the generated digital signature to the blockchain, wherein the account-processing record is stored in the blockchain upon one or more second blockchain nodes confirming the account-processing record based on the digital signature.

First claim

What is claimed is:

1. A computer-implemented method for blockchain-based reconciliation, comprising:
creating, by a first blockchain node associated with a blockchain, an account-processing record based on an account-processing operation, wherein the blockchain is synchronized on a plurality of blockchain nodes associated with a blockchain network and the first blockchain node is in a first financial system;
generating, by the first blockchain node, a digital signature on the account-processing record by encrypting a digest of the account-processing record using a private key associated with the first blockchain node;
creating, by the first blockchain node, a block storing the account-processing record and the digital signature;
sending, by the first blockchain node to a plurality of second blockchain nodes comprising each of the blockchain nodes associated with the blockchain network other than the first blockchain node, the created block and a confirmation request message comprising the digital signature for verification, wherein the plurality of second blockchain nodes are in a plurality of separate second financial systems respectively;
verifying, by each of the plurality of second blockchain nodes, the confirmation request message based on the digital signature to confirm the created block, wherein the verifying comprises confirming that a first digest obtained by applying a hash function on the account-processing record stored in the created block is identical to a second digest obtained by decrypting the digital signature using a public key associated with the first blockchain node;
recording, by each of the plurality of second blockchain nodes, the block in the blockchain upon confirming that the first digest is identical to the second digest;
receiving, by the first blockchain node from each of the plurality of second blockchain nodes, a feedback message confirming the recording of the block; and
determining that the block is successfully created in the blockchain based on the feedback message from each of the plurality of second blockchain nodes.

2. The method of claim 1 , further comprising:
confirming, by the first blockchain node, a different account-processing record uploaded by one of the plurality of second blockchain nodes.

3. The method of claim 1 , further comprising:
creating, by one of the plurality of second blockchain nodes, a different account-processing record based on a different account-processing operation; and
uploading, by the one of the plurality of second blockchain nodes, the different account-processing record to the blockchain.

4. The method of claim 1 , wherein each of the plurality of second blockchain nodes stores full account book information about the first blockchain node.

5. The method of claim 3 , wherein the first blockchain node is an account-processing node and the plurality of second blockchain nodes are account-authenticating nodes, and wherein the method further comprises:
converting the first blockchain node into an account-authenticating node; and
confirming, by the first blockchain node, the different account-processing record.

6. The method of claim 1 , wherein the blockchain comprises a consortium blockchain.

7. A system for blockchain-based reconciliation, comprising a plurality of blockchain nodes associated with a blockchain network that synchronize a blockchain, the blockchain nodes comprising processors and non-transitory computer-readable storage media storing instructions executable by the processors to cause the system to perform operations comprising:
creating, by a first blockchain node of the blockchain nodes associated with the blockchain network, an account-processing record based on an account-processing operation, wherein the first blockchain node is in a first financial system;
generating, by the first blockchain node, a digital signature on the account-processing record by encrypting a digest of the account-processing record using a private key associated with the first blockchain node;
creating, by the first blockchain node, a block storing the account-processing record and the digital signature;
sending, by the first blockchain node to a plurality of second blockchain nodes comprising each of the blockchain nodes associated with the blockchain network other than the first blockchain node, the created block and a confirmation request message comprising the digital signature for verification, wherein the plurality of second blockchain nodes are in a plurality of separate second financial systems respectively;
verifying, by each of the plurality of second blockchain nodes, the confirmation request message based on the digital signature to confirm the created block, wherein the verifying comprises confirming that a first digest obtained by applying a hash function on the account-processing record stored in the created block is identical to a second digest obtained by decrypting the digital signature using a public key associated with the first blockchain node;
recording, by each of the plurality of second blockchain nodes, the block in the blockchain upon confirming that the first digest is identical to the second digest;
receiving, by the first blockchain node from each of the plurality of second blockchain nodes, a feedback message confirming the recording of the block; and
determining that the block is successfully created in the blockchain based on the feedback message from each of the plurality of second blockchain nodes.

8. The system of claim 7 , wherein the operations further comprise:
confirming, by the first blockchain node, a different account-processing record uploaded by one of the plurality of second blockchain nodes.

9. The system of claim 7 , wherein the operations further comprise:
creating, by one of the plurality of second blockchain nodes, a different account-processing record based on a different account-processing operation; and
uploading, by the one of the plurality of second blockchain nodes, the different account-processing record to the blockchain.

10. The system of claim 7 , wherein each of the plurality of second blockchain nodes stores full account book information about the first blockchain node.

11. The system of claim 9 , wherein the first blockchain node is an account-processing node and the plurality of second blockchain nodes are account-authenticating nodes, and wherein the operations further comprise:
converting the first blockchain node into an account-authenticating node; and
confirming, by the first blockchain node, the different account-processing record.

12. The system of claim 7 , wherein the blockchain comprises a consortium blockchain.

13. One or more non-transitory computer-readable storage media for blockchain-based reconciliation associated with a plurality of blockchain nodes associated with a blockchain network that synchronize a blockchain, the media being configured with instructions executable by one or more processors to cause the one or more processors to perform operations comprising:
creating, by a first blockchain node of the blockchain nodes associated with the blockchain network, an account-processing record based on an account-processing operation, wherein the first blockchain node is in a first financial system;
generating, by the first blockchain node, a digital signature on the account-processing record by encrypting a digest of the account-processing record using a private key associated with the first blockchain node;
creating, by the first blockchain node, a block storing the account-processing record and the digital signature;
sending, by the first blockchain node to a plurality of second

Assignees

• Advanced New Technologies Co Ltd

Inventors

• Wang Shiyu

Classifications

• H04L9/50

  using hash chains, e.g. blockchains or hash trees · CPC title

• G06Q20/02

  involving a neutral party, e.g. certification authority, notary or trusted third party [TTP] · CPC title

• H04L2209/56

  Financial cryptography, e.g. electronic payment or e-cash · CPC title

• H04L9/3247 Primary

  involving digital signatures · CPC title

• H04L9/30

  Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy · CPC title