| 摘要 |
A control element of an IC card controls in a region of a data memory constituted of EEPROMs all control information of data strings. The control information of the data strings each includes the number of registered data string control information and control information. The control information in the data string control information is constituted of data string identifier, set address information, available data size information, and security condition information. The data string specified by the set address information is constituted of data string length control information, data string, and the data string suitableness control information. The reading, correcting, adding, deleting, and/or writing operation of the data string is controlled by directly specifying a data string with use of the data string identifier in the data string control information.
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