Patent · US Active

System and method of protecting files from unauthorized modification or deletion

US8239674B2 · kind B2 · utility

20Cited by

6References

16Claims

0Family size

Assignee

Kabushiki Kaisha Toshiba · JP

Inventors

Charles C. Lee · Little Canada, US
David Hall · Rancho Santa Margarita, US

Key dates

Filing date	Jun 22, 2007
Grant date	Aug 7, 2012
Priority date	—
Expiry date	Sep 29, 2030

Classification

Technology area (CPC G)Physics
CPC primaryG06F2221/2147
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

According to one embodiment of the invention, a method comprises receiving a write request for a file. A temporary file associated with the file is created in response to the write request. A write-lock is applied to the temporary file, namely the file includes a setting that restricts write access to only a component that created or opens the temporary file. Thereafter, the temporary file is closed to disable the write-lock and to enable a component that initiated the write request to access the temporary file.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.