Method of executing a transaction on a smartcard, a smartcard and a transaction processing system including a smartcard
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Sep 5, 2000
Grant Date -
N/A
app pub date -
Jun 11, 1998
filing date -
Jul 26, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method of executing a transaction on a smartcard of the type including a processor, a memory for storing a system program, an application programs and for storing data and an interface enabling communication with an external processor in a local terminal adapted to access related data is disclosed. The method comprises the steps of: determining from the data stored on the smartcard in a pre-transaction state if the transaction can be executed validly by the smartcard (102); determining from the related data stored in a pre-transaction state and accessible by said external processor if the transaction can be executed validly by the external processor (102); in response to said determining steps being affirmative, executing said transaction on said smartcard and by said external processor (105); and in response to said smartcard or said external processor failing to execute said transaction, restoring said data and said related data to the or each pre-transaction state (108).
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