Patent ID: 6811077
Filing Date: 2004-11-02
Classification: G06Q,G07F,H04L,H04W

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 being characterized in that: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; and if 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.