Distributed, lock-free 2-phase commit of secret shares using multiple stateless controllers
US10931450B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2018 |
| Grant date | Feb 23, 2021 |
| Priority date | — |
| Expiry date | Mar 13, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2463/062
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method of encryption key management in a storage system having a plurality of nodes and more than one key manager, performed by the storage system, is provided. The method includes setting, in a first atomic operation to a distributed store of the plurality of nodes, a version identifier to a new value, and writing shards of a key encryption key, to node-specific memory of the plurality of nodes. The method includes committing the shards of the key encryption key by updating, in a second atomic operation, a set of version identifiers in the distributed store including a current version identifier, responsive to finding no change to the new value of the version identifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.