System and method for locking down a capability of a computer system
US8386763B1 · kind B1 · utility
13Cited by
11References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 4, 2012 |
| Grant date | Feb 26, 2013 |
| Priority date | — |
| Expiry date | Jan 4, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/2141
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and method is disclosed for locking down a capability of a computer system. Hardware instructions initiate a sequence of boot cycles to launch a computer operating system on a computer-enabled device. During the boot cycles, multiple levels of boot code are verified. Each verified stage of boot code verifies a subsequent stage of boot code. If the subsequent stage of boot code cannot be verified, the verified stage locks a capability of the computer so that the subsequent stage of boot code cannot modify the capability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.