Making secure data exchanges between controllers
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
N/A
Issued Date -
Jun 26, 2003
app pub date -
Nov 25, 2002
filing date -
May 26, 2000
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
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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