Multi-level key hierarchy for securing cloud-based data sets
US9544140B1 · kind B1 · utility
21Cited by
0References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2011 |
| Grant date | Jan 10, 2017 |
| Priority date | — |
| Expiry date | Aug 11, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/30
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A hierarchy is defined that includes encryption keys associated with different first and second levels of the hierarchy, where the second level includes fewer of the encryption keys than the first level. The encryption keys of the first level secure a plurality of data objects. The encryption keys of the first level are grouped into key groups that respectively include one or more of the encryption keys of the first level. The one or more of the encryption keys of the first level included in each of the key groups are secured with a respective one of the encryption keys of the second level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.