Techniques and systems for durable encryption and deletion in data storage systems
US10248793B1 · kind B1 · utility
7Cited by
87References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 16, 2015 |
| Grant date | Apr 2, 2019 |
| Priority date | — |
| Expiry date | Dec 16, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/0428
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A computer system, such as a data storage system, implements techniques for deleting durably stored data without affecting the availability or durability of other data associated therewith. In some embodiments, data is encrypted prior to redundancy coding such that deletion of an encryption key used to encrypt the data renders that data inaccessible, but other data bundled in the same redundancy coded bundle remains available. In such embodiments, a shard containing deleted data may still be usable to regenerate other, non-deleted or live data still extant in the same bundle of shards.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.