BIOS protection device
US8533442B2 · kind B2 · utility
18Cited by
5References
31Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 19, 2008 |
| Grant date | Sep 10, 2013 |
| Priority date | — |
| Expiry date | Jul 5, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/575
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A boot program held in a BIOS memory device of a processing system is authenticated. At system start-up, a BIOS protection device temporarily prevents execution of the boot program by the central processor of the processing system by control of address and data paths. The BIOS protection device interrogates the contents of the BIOS memory device to establish authentication. If the contents of the BIOS memory device are not authentic, execution of the boot program is prevented.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.