Providing data authorization based on blockchain
US11252166B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2020 |
| Grant date | Feb 15, 2022 |
| Priority date | — |
| Expiry date | Jan 31, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/50
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Disclosed herein are methods, systems, and apparatus, including computer programs encoded on computer storage media, for providing blockchain-based data authorization. One of the methods includes receiving, by a blockchain node, a data acquisition transaction submitted by a data user for obtaining target data possessed by a data owner, determining, by the blockchain node, that the data user has obtained authorization of the target data, and executing, by the blockchain node, a smart contract invoked by the data acquisition transaction to issue an authorization token to the data user in response to determining that the data user has authorization of the target data, where the authorization token is sent to a privacy computing platform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.