Data processing method and apparatus
US10868670B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 30, 2019 |
| Grant date | Dec 15, 2020 |
| Priority date | — |
| Expiry date | Jan 30, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/3073
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A data processing method and apparatus include: generating, by a terminal device, a first public key and a first private key; sending the first public key to a key generation center (KGC), where the first public key is used by the KGC or a server to generate a transform key, and the transform key is used by the server to transform data that is encrypted based on an attribute structure of the terminal device into data that is encrypted based on the first public key; receiving second data sent by the server, where the second data is data that is generated after the server processes first data according to the transform key; and decrypting the second data according to the first private key. In the data processing, main work is completed by the server with no need to use a secure channel to transmit a key.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.