Backup system with multiple recovery keys
US9904629B2 · kind B2 · utility
2Cited by
11References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2015 |
| Grant date | Feb 27, 2018 |
| Priority date | — |
| Expiry date | Sep 30, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/1052
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Some embodiments provide, for a particular device in a set of related devices, a method for backing up data synchronized between the set of related devices. The method stores the backup data encrypted with a set of data encryption keys. The method also stores the set of data encryption keys encrypted with a master recovery key. The method also stores several copies of master recovery key data, each copy of the master recovery key data encrypted with a public key of a different one of the related devices. The backup data is only recoverable by accessing a private key of any one of the related devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.