| 摘要 |
PROBLEM TO BE SOLVED: To provide a discrimination method capable of setting and discriminating the security level corresponding to service contents and leaving a past service utilization history, and to provide an IC card and its use. SOLUTION: This IC card A is provided with a sensor part 1 for authentication for reading a certain intrinsic physical feature, a data processing part 2, a nonvolatile memory 3 capable of storing and additionally writing data relating to a service utilization right, a power relation part 4 provided with a terminal for power supply or a power supply part or the like for receiving power supply, a main memory part 5, an non-rewritable memory 6 for individually holding the data for individual authentication, an individual ID and a card ID and a data input/output part 7. |
