Method, apparatus, and system for access control of shared data
US10050968B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 31, 2014 |
| Grant date | Aug 14, 2018 |
| Priority date | — |
| Expiry date | Jun 8, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/1097
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for access control of shared data includes a data access requester transmitting a request for accessing a shared data to a data storage dealer, obtaining a cipher text of the shared data, a cipher text of an encryption key, an access strategy, and a cipher text attribute component from the data storage dealer, and transmitting a request for obtaining the user attribute component of the data access requester respectively to the attribute authorizers. The attribute authorizers generate the user attribute components of the data access requester respectively and transmit the user attribute components of the data access requester to the data access requester. The data access requester restores the encryption key, and decrypts the cipher text of the shared data according to the encryption key for obtaining the shared data requested to be accessed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.