Method and system to provide a trusted channel within a computer system for a SIM device
US7636844B2 · kind B2 · utility
10Cited by
208References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 17, 2003 |
| Grant date | Dec 22, 2009 |
| Priority date | — |
| Expiry date | Jul 29, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/02
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Exchanging data between a SIM device and an application executed in a trusted platform, wherein the data to be exchanged is secured from unauthorized access. In one embodiment, the exchanging data includes exchanging an encryption key via a trusted path within a computer system, and exchanging data encrypted with the encryption key, via an untrusted path with the computer system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.