Firmware verification system and firmware verification method
US12216762B2 · kind B2 · utility
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10Claims
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Key dates
| Filing date | Oct 13, 2022 |
| Grant date | Feb 4, 2025 |
| Priority date | — |
| Expiry date | Apr 22, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/033
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A firmware verification system is suitable for a secure boot stage. The firmware verification system comprises a non-volatile firmware list storage device. The non-volatile firmware list storage device is configured to store a firmware list; wherein each entry corresponds to a firmware stored in a flash memory in a microcontroller, and each entry includes a plurality of fields. The bootloader reads the entries. According to the contents of the fields in each entry, the bootloader determines the correctness of the public key and the correctness of the digital signature for each firmware in the microcontroller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.