| 摘要 |
PROBLEM TO BE SOLVED: To provide an IC card, a data duplication control method and a data duplication control program capable of preventing data from being duplicated illegally and externally even when external attacks are repeated at plural times.SOLUTION: Response data stored in a prescribed address of a memory is duplicated in a communication buffer according to a prescribed size, and it is determined whether the address of the duplication source is proper according to the duplication. When it is determined that the address of the duplication source is not proper, the duplication of the response data is stopped. |
