Enhanced secure boot
US10885199B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2016 |
| Grant date | Jan 5, 2021 |
| Priority date | — |
| Expiry date | Dec 30, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/2149
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A pre-boot initialization technique for a computing system allows for encrypting both a manufacturer and original equipment manufacturer firmware routines, as well as handing off data between the manufacturer and original equipment manufacturer firmware routines encrypted with a key provisioned in field programmable fuses with an original equipment manufacturer key. By encrypting the firmware routines and handoff data, security of the pre-boot initialization process is enhanced. Original equipment manufacturer updatable product data may also be encrypted with the original equipment manufacturer key. Additional security may be provided by using trusted input/output capabilities of a trusted execution environment to display information to and receive information from a user. Furthermore, multiple secure phases of configuration may be achieved using wireless credentials exchange components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.