Methods, apparatus and systems with loadable kernel architecture for processors
US8239673B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 7, 2005 |
| Grant date | Aug 7, 2012 |
| Priority date | — |
| Expiry date | Nov 16, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/575
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A device (200, 2200) for improved security includes a processor (200) and a secure writeable memory (2245) coupled to said processor (200) and including code (2240) to download a loadable security kernel to the processor (200), authenticate the loadable security kernel, and transfer the kernel so that the kernel begins at a predetermined address inside the secure writeable memory (2245) only if the authentication is successful. A process (2400) of manufacturing a target communication device (2310) having a memory space having a secure writable portion (2245) of the memory space, the manufacturing process (2400) using a host machine (2330). The manufacturing process (2400) includes downloading (2540) the loadable security kernel from the host machine (2330) to the memory space at the target (2310). The loadable security kernel has a flashing entry point. The process also includes authenticating (2590) the downloaded loadable security kernel received at the target (2310), moving (2640) the loadable security kernel in the memory space provided the authenticating is successful (2610), wherein after the moving (2640) the loadable security kernel is in the secure writable portion (2245) …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.