Procédé pour le fonctionnement sûr d'un support de données portable

Procédé pour le fonctionnement sûr d'un support de données portable

Secure operating method for a portable data carrier (1) with a memory (4). According to the method, if an operation is carried out in the data carrier according to predetermined parameters that requires access to the memory or causes data to be output via the output channel (3) of the data carrier,...

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Bibliographische Detailangaben
Hauptverfasser: MAMUZIC, NIKOLA, BOCKES, MARKUS, BALDISCHWEILER, MICHAEL, LAMLA, MICHAEL, WEICKER, SABINE, VATER, HARALD, KAHL, HELMUT, SEYSEN, MARTIN, DREXLER, HERMANN, KARCH, TORSTEN
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Beschreibung
Zusammenfassung:Secure operating method for a portable data carrier (1) with a memory (4). According to the method, if an operation is carried out in the data carrier according to predetermined parameters that requires access to the memory or causes data to be output via the output channel (3) of the data carrier, at least one of the parameters is checked to determine if its value has changed from a previous value. An independent claim is made for a portable data carrier that has a security function for checking if parameter values have been changed during memory access or data output processes.