System and method for secure erase in copy-on-write file systems
US8762431B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 17, 2012 |
| Grant date | Jun 24, 2014 |
| Priority date | — |
| Expiry date | Jan 17, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/2143
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Disclosed herein are systems, methods, and non-transitory computer-readable storage media for a delayed secure deletion of files from a copy-on-write file system. A system configured to practice the method receives a change to a file, writes a copy of the file in a first block of a storage device, the copy including the change, determines whether the change meets a predetermined condition, adds an entry into a delayed secure deletion list when the change triggers the predetermined condition, the entry storing an address associated with the first block, and deletes the first block when another change to the file is received, wherein the another change triggers another predetermined event.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.