Data sharing method and device
US9129125B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 2014 |
| Grant date | Sep 8, 2015 |
| Priority date | — |
| Expiry date | Jan 30, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/0478
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method includes receiving a request by a second user through a uniform resource locator (URL) for a user key of a shared file of a first user. The second user is a legitimate user authorized by the first user through a trust center to access the shared file. The shared file is a shared file encrypted by using the user key of the first user. A file description of the corresponding shared file is obtained from a cloud server according to the URL. The file description is a file description obtained by encrypting the user key by using a public key of the trust center. The file description is decrypted using a private key corresponding to the public key of the trust center to obtain the user key of the first user. The user key is sent to the second user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.