Selective purge of confidential data from a non-volatile memory
US9015401B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 2011 |
| Grant date | Apr 21, 2015 |
| Priority date | — |
| Expiry date | Nov 16, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/7204
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Method and apparatus for the non-destructive, selective purging of data from a non-volatile memory. In accordance with various embodiments, multiple copies of a selected set of confidential user data having a common logical address are stored to a confidential data portion of a non-volatile memory so that each copy is in a different location within the confidential data portion. A nondestructive purge of all said copies from the confidential data portion is carried out responsive to an externally supplied selective purge command so that all said copies are erased and other, non-purged confidential user data remain stored in the confidential data portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.