System and method to store data securely for firmware using read-protected storage
US9535712B2 · kind B2 · utility
2Cited by
2References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 4, 2014 |
| Grant date | Jan 3, 2017 |
| Priority date | — |
| Expiry date | Dec 4, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/6209
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Embodiments of the present invention store data in read-protected storage for use by firmware and then transfer the data or data related to that stored data into a secure execution environment for use during normal platform operation. The read-protected storage is readable only between a time period after platform reset but before the read-protected storage is locked prior to the operating system being loaded. This read-protected storage is locked prior to executing any untrusted code in normal system memory so that the data in the read-protected storage is not exposed to malicious code execution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.