Database with client-controlled encryption key
US11595205B1 · kind B1 · utility
1Cited by
9References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 22, 2019 |
| Grant date | Feb 28, 2023 |
| Priority date | — |
| Expiry date | Dec 21, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2201/80
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A distributed database encrypts a table using a table encryption key protected by a client master encryption key. The encrypted table is replicated among a plurality of nodes of the distributed database. The table encryption key is replicated among the plurality of nodes, and is stored on each node in a respective secure memory. In the event of node failure, a copy of the stored key held by another member of the replication group is used to restore a node to operation. The replication group may continue operation in the event of a revocation of authorization to access the client master encryption key.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.