Card type storage medium and card type storage medium issuing apparatus.

摘要

The card type storage medium comprises a storage unit (2) holding a file area (21) including a dedicated file (24) served to hold PINs and file names of data files (22) stored in a directory area (23) in the storage unit (2) such that the PIN and file name of each data file (22) correspond to each other. The card type storage medium holds control information (232) including a master PIN for the dedicated file (24) in the directory area (23) in the storage unit (2). A recovery information unit (25) is additionally provided in a data file (22) in the file area (21) in the storage unit (2), which holds recovery information obtained every time the data file (22) is updated. This card type storage medium is applicable to, for example, an IC card. <IMAGE>