System and method for information protection
US11416854B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2018 |
| Grant date | Aug 16, 2022 |
| Priority date | — |
| Expiry date | Nov 4, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/56
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A computer-implemented information protection method comprises: obtaining a plurality of encrypted transaction amounts associated with transactions among a plurality of accounts, wherein each of the encrypted transaction amounts is associated with one of the accounts that sends or receives one of the transaction amounts, and the encryption of each of the transaction amounts at least conceals whether the one account sends or receives the one of the transaction amounts; generating a sum proof based on the obtained encrypted transaction amounts, the sum proof at least indicating that the transaction amounts are balanced; and transmitting the encrypted transaction amounts and the sum proof to one or more nodes on a blockchain network for the nodes to verify the transactions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.