Storage and recovery of cryptographic key identifiers
US8892907B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 27, 2013 |
| Grant date | Nov 18, 2014 |
| Priority date | — |
| Expiry date | Dec 27, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/56
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Example embodiments provide various techniques for storing and recovering a cryptographic key identifier that may be used to recover encrypted data. The cryptographic key identifier may be stored with the encrypted data itself. In an example, the cryptographic key identifier may be stored in particular blocks on a logical disk that are specifically designated to store the cryptographic key identifier. To store the cryptographic key identifiers in the designated blocks, the data within the blocks is compressed to fit the cryptographic key identifiers within the blocks. This cryptographic key identifier can be recovered at a later time by locating the designated blocks and retrieving the cryptographic key identifier from the blocks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.