Blockchain-based data authorization method and apparatus
US11251963B2 · 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
One or more implementations of the present specification provide a blockchain-based data authorization method and apparatus. The method can include receiving, by a blockchain node, an authentication transaction submitted by a privacy computing platform, where the authentication transaction queries whether a data user has obtained authorization of target data possessed by a data owner, and in response to determining that the data user has obtained authorization of the target data, executing, by the blockchain node, a smart contract invoked by the authentication transaction to provide an authorization token to the privacy computing platform that instructs the privacy computing platform to obtain the target data, and send a computational result of one or more predetermined computational operations based on the target data to the data user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.