Trusted boot
US8166289B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 5, 2009 |
| Grant date | Apr 24, 2012 |
| Priority date | — |
| Expiry date | Oct 13, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/2143
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In one embodiment, a method for trusted booting of a cryptographic processor system is disclosed. Default image(s) is loaded into a field-programmable logic chip or circuit (FPLC). The default image(s) cannot perform cryptographic processing, but can perform a first algorithm that is unclassified. A processor, internal or external to the FPLC, can be used with the default image. A multi-layer or multi-part key has portions stored in two different places. A protected image is decrypted with the multi-layer key using the first algorithm and loaded into the FPLC. Cryptographic processing is performed using a second algorithm classified by the government.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.