Method for making secure access to a resident application on a user card co-operating with communication system terminal, and corresponding terminal
US6811077B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 13, 2003 |
| Grant date | Nov 2, 2004 |
| Priority date | — |
| Expiry date | May 28, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/02
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method of securing access by an external application to at least one user card having a microprocessor, said user card being capable of containing a plurality of internal applications, said external application corresponding to one of the internal applications, said user card co-operating with a terminal, said external application using a protocol for connection to said user card in which each type of external application is associated with a predetermined identity parameter, the method comprising the following steps:when a first external application is connected with the corresponding internal application on the user card, the identity parameter of the application is determined;if a second external application requests connection to said user card, the identity parameter of said second application is analyzed; andif said parameter is identical to that of the first-connected application, then access to said corresponding internal application on the user card is denied to said second external application.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.