| 摘要 |
PROBLEM TO BE SOLVED: To provide means capable of confirming personal identification number information set in a credit card or the like with a relatively simple configuration while securing sufficient security at any time and anywhere.SOLUTION: An information storage medium 20 including a personal identification number storage part 25 for storing personal identification numbers of a credit card and a cash card, and a short-range radio communication part 23 for performing short-range radio communication with a cellular phone 10 by RFID, Bluetooth (R), IrDA, or the like is stored in a money bag, or is built in a necklace, a ring, character goods, or the like. When the personal identification number has to be confirmed, the information storage medium 20 is accessed from the cellular phone 10 through short-range communication to read the personal identification number, and the personal identification number is confirmed by displaying the personal identification number on a display part 15 of the cellular phone 10. The personal identification number information stored in the storage part of the cellular phone 10 for display is erased after finishing the confirmation, and the personal identification number information is not left behind as storage in the cellular phone 10. |
