Non-ROM based IP firmware verification downloaded by host software
US11768941B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2020 |
| Grant date | Sep 26, 2023 |
| Priority date | — |
| Expiry date | Mar 8, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/78
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus to implement an IP independent secure firmware load into an IP agent without a ROM to establish hardware root of trust is disclosed. The apparatus includes a plurality of agents, at least one agent including an isolated memory region accessible only to a trusted entity of the at least one agent and a main memory, and a processor to allocate a section of the isolated memory region of the at least one agent, verify a first stage firmware module, the first stage firmware module comprising instructions to enable the at least one agent to load and verify a second stage firmware module, place the first stage firmware module into memory of the at least one agent without a ROM to establish the hardware root of trust.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.