Security to extend trust
US8341393B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2009 |
| Grant date | Dec 25, 2012 |
| Priority date | — |
| Expiry date | Mar 8, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/127
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An exemplary apparatus includes one or more processors; memory; circuitry configured to hash a value associated with core root of trust measurement code and system management code; store the hash in a secure register; load an operating system; validate a certificate associated with the core root of trust measurement code and validate a certificate associated with the system management code; based on the validated certificates, provide an expected hash associated with the core root of trust measurement code and the system management code; decide if the expected hash matches the hash stored in the register; and, if the expected hash matches the hash stored in the register, commence a dynamic root of trust measurement session. Various other apparatuses, systems, methods, etc., are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.