Method of executing a transaction on a smartcard, a smartcard an

Details Method of executing a transaction on a smartcard, a smartcard an Method of executing a transaction on a smartcard, a smartcard an

1998-06-11

2000-09-05

Hajec, Donald

Registers

Systems controlled by data bearing records

Credit or identification card systems

235379, 235385, 902 25, 902 26, 902 27, 705 14, G06K 500, G06K 1760

Patent

active

061129879

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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