Program access authorization of peripheral devices via a smart card
US7747791B2 · kind B2 · utility
0Cited by
4References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 3, 2004 |
| Grant date | Jun 29, 2010 |
| Priority date | — |
| Expiry date | Aug 18, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/2141
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and a system of access control between a main processor and peripherals connected by a communication bus, including assigning, to all or part of the programs to be executed by the main processor, at least one token selectively authorizing access to one or several of said peripherals, said token being provided at least initially by an auxiliary processor exploiting a memory distinct from that of the main processor; and checking, for each request of access of one of said programs to one of said peripherals, the presence of said authorization token for the access to the concerned peripheral.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.