Encryption key fragment distribution
US8538029B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 24, 2011 |
| Grant date | Sep 17, 2013 |
| Priority date | — |
| Expiry date | Aug 15, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/085
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An encryption key may be fragmented into n encryption key fragments such that k<n fragments are sufficient for reconstructing the encryption key. The encryption key fragments may be distributed across data stores located within first and second geographic regions. For example, at least k of the encryption key fragments may be distributed across data stores realized at N different availability zones within the first geographic region such that less than k of the encryption key fragments are distributed to each of the N availability zones within the first geographic region. Similarly, at least k of the encryption key fragments may be distributed across data stores realized at M different availability zones within the second geographic region such that less than k of the encryption key fragments are distributed to each of the M availability zones within the second geographic region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.