Protection of a microcontroller
US7516902B2 · kind B2 · utility
4Cited by
4References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 18, 2005 |
| Grant date | Apr 14, 2009 |
| Priority date | — |
| Expiry date | Nov 18, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W12/126
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for protecting at least one section of a program executed by a microcontroller, included before execution of the section, decrementing or incrementing at least one first counter and storing its state in a non-volatile memory of the microcontroller; in case of the detection of an attack attempt by the microcontroller, activating a flag in the microcontroller RAM; and at the end of the execution of the program section, checking the flag state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.