Operating system upgrades in a trusted operating system environment
US7159240B2 · kind B2 · utility
20Cited by
109References
42Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 16, 2001 |
| Grant date | Jan 2, 2007 |
| Priority date | — |
| Expiry date | Jul 2, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/6218
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Operating system upgrades in a trusted operating system environment allow a current trusted core of an operating system installed on a computing device to be upgraded to a new trusted core. The new trusted core is allowed to access application data previously securely stored by the current trusted core only if it can be verified that the new trusted core is the new trusted core expected by the current trusted core. In accordance with one implementation, the new trusted core is allowed to access only selected application data previously securely stored by the current trusted core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.