Gemplus

Pierre Paradinas

Jean-Jacques Vandewalle

Christophe Muller

Philippe Merle

Christophe Gransart

Jean-Marc Geib

Service applications are provided on multiple types of devices with different execution contexts. A smart card stores the application description, and processes it to install an adapted configuration of the application for whatever device it is inserted in. Smart cards are compatible with many devices, as well as being small, resistant, and tamper-proof. In addition to security features, their processing capacities can be used to at least partially treat the abstract descriptions of the applications in order to produce concrete descriptions adapted to the execution context.

Adaptation of service applications to heterogeneous execution context by means of smart cards

A method of conducting a transaction between a chip card and an information system protects against fraud and malfunction during the transaction. The method involves a multi-step recording procedure wherein the transaction is first temporarily recorded in the chip card and the information system, and then later is definitively recorded after it has been verified that both sides have performed the temporarily recording step. In order to perform the temporary recording, information which describes the transaction is sent to both the chip card and the information system from a transaction management device. In order to verify that both sides have performed the temporary recording, a first set of messages is sent from the chip card and the information system to the transaction management device which indicate that the temporary recording has been performed. The transaction management device receives these messages and responds by sending a second set of messages to the chip card and the information system. The chip card and the information system receive these messages and respond by changing the character of the previously performed recording from temporary to definitive. The transaction is protected against fraud and malfunction because the transaction must be successfully entered into the information system before it becomes available to a user of the chip card.

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Meyreuil, France

Pierre Paradinas