| 摘要 |
The invention concerns a method for making secure data exchanges between first and second controllers (SIM, CA) such as an identity card (SIM) of a radiotelephone terminal (TE) managing communications to a telecommunications network (RR) for applications in an additional card (CA). A server (SO) of the identity card operator, or a server (SP) of the additional card transmitter matches with the identifier a mother key to determine the key of an application selected in the additional card. At least a parameter depending on the key is transmitted to the identity card (SIM) to make secure a data exchange. The identity card is thus customized on line for each application.
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