Method and system for implementing a secure chain of trust
US9613215B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2008 |
| Grant date | Apr 4, 2017 |
| Priority date | — |
| Expiry date | Dec 7, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/02
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method, an integrated circuit and a system for implementing a secure chain of trust is disclosed. While executing secure boot code in a secure boot mode, less-secure boot code may be authenticated using a secret key. A secure key may also be calculated or generated during the secure boot mode. After control is turned over to the authenticated less-secure boot code, at least one application may be authenticated using the secure key. Once authenticated in the less-secure boot mode, the application may be executed by the programmable integrated circuit. In this manner, a secure chain of trust may be implemented for the programmable integrated circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.