Electronic value data communication method, communication system, IC card, portable terminal, and communication
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Dec 11, 2003
app pub date -
Jun 3, 2003
filing date -
Jun 5, 2002
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
The object of the present invention is to prevent copying of electronic value data itself. In communication system of the present invention, different from the conventional system, source IC card A and target IC card B mutually authenticate the other party, and thereafter the electronic value data is transferred from IC card A to IC card B through direct encryption communication between these IC cards A, B, whereby it is feasible to prevent decipher and falsification of the data by a third party in the middle of a communication path and prevent copying of the data.
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