Validating operating firmware of a periperhal device
US10318736B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2016 |
| Grant date | Jun 11, 2019 |
| Priority date | — |
| Expiry date | Apr 30, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F8/654
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Various examples described herein provide for firmware verification on a peripheral device that can couple to a computing device. Before operating firmware is executed on the peripheral device, boot firmware can execute on the peripheral device and cause the peripheral device to generate a hash of the operating firmware. The peripheral device can transmit the hash to a validator external to the peripheral device, such as a management processor. The peripheral device can receive, from the validator, a validation decision based on the transmitted hash. In response to the validation decision indicating invalidity of the operating firmware, the peripheral device can execute recovery firmware to cause the peripheral device to retrieve replacement firmware. Depending on the example, the retrieved replacement firmware may replace the operating firmware or the operating firmware may be updated based on the retrieved replacement firmware.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.