Processor system
US11775650B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 11, 2020 |
| Grant date | Oct 3, 2023 |
| Priority date | — |
| Expiry date | Dec 24, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/2141
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A processor system includes a processor and a first memory area storing a boot program code. The boot program code starts execution of an operating system when executed by the processor, and performs a cryptographic operation when the processor executes the boot program code. A second memory area stores one or more cryptographic keys and is only accessible to the boot program code. A third memory area stores the operating system. The processor retrieves the boot program code from the first memory area and executes the boot program code to start the execution of the operating system. The processor re-executes the boot program code to cryptographically encrypt data upon the basis of the cryptographic keys stored in the second memory area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.