Encryption of data in a range of logical block addresses
US7360057B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2005 |
| Grant date | Apr 15, 2008 |
| Priority date | — |
| Expiry date | Mar 4, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0673
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of encrypting information in a data storage device that includes a storage medium having a plurality of physical memory locations referenced through logical block addresses is provided. The method includes receiving, in the data storage device, data from a host computer. At least a portion of the received data is encrypted, within the data storage device, if the at least a portion of the received data is destined for storage in at least a subset of the plurality of physical memory locations, which correspond to a predetermined range of logical block addresses. The encryption of the at least a portion of the received data is substantially transparent to the host computer and independent of a file to which the at least a portion of the data belongs. In addition, a data storage device readable by a computer system for implementing the above encryption method is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.