Loading secure code into a memory
US8219772B2 · kind B2 · utility
2Cited by
3References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 2, 2009 |
| Grant date | Jul 10, 2012 |
| Priority date | — |
| Expiry date | Sep 5, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/2105
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and system of controlling access to a programmable memory including: allowing code to be written to the programmable memory in a first access mode; preventing execution of the code stored in the programmable memory in the first access mode; verifying the integrity of the code stored in the programmable memory; if the integrity of the code stored in the programmable memory is verified, setting a second access mode, wherein in the second access mode, further code is prevented from being written to the programmable memory, and execution of the code stored in the programmable memory is allowed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.