Rapidly establishing a chain of trust in a computing system
US11314868B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2019 |
| Grant date | Apr 26, 2022 |
| Priority date | — |
| Expiry date | Jul 22, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/3252
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system root of trust device of a computing system authenticates boot images associated with data processing units of the computing system. The device includes at least one processor configured to determine whether a first set of boot code associated with a first processor of the computing system is authentic, in response to determining that the first set of boot code is authentic, reset the first processor to allow the first processor to boot and authenticate first executable code to be executed by the first processor, after resetting the first processor, determine whether a second set of boot code associated with a second processor of the computing system is authentic, and in response to determining that the second set of boot code is authentic, reset the second processor to allow the second processor to boot and to authenticate second executable code to be executed by the second processor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.