Secured encrypted shared cloud storage
US11068606B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 20, 2017 |
| Grant date | Jul 20, 2021 |
| Priority date | — |
| Expiry date | Apr 2, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/14
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Secure shared access to encrypted data in a data store is facilitated by using a data control server (DCS) to maintain a data storage reference table (DSRT) for shared data units present in a shared data pool hosted by least one data storage device, and accessible to a plurality of computing entities. The DSRT specifies for each shared data unit identifier information, location information for accessing the shared data unit in the shared data pool, and a hash value which has been computed for the shared data unit. The DCS selectively facilitates a decryption operation by providing hash values which serves as a basis for deriving a decryption key for decrypting shared data units which have been identified.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.