Mechanism to secure computer output from software attack using isolated execution
US7389427B1 · kind B1 · utility
18Cited by
160References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2000 |
| Grant date | Jun 17, 2008 |
| Priority date | — |
| Expiry date | Apr 25, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/2105
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and platform for maintaining the security of output data in an isolated execution environment. A system memory has an isolated output area readable only by secure output controllers having an isolated execution mode. The output controllers may make a request for access to the isolated output area, upon proper authentication if the request access is granted. The output device may either DMA the content of the isolated output area to an output end point, such as a display, or load it into local storage, the security of which is guaranteed by the controller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.