IC CARD SECURITY MANAGING METHOD, IC CARD SYSTEM AND STORAGE MEDIUM STORING IC CARD SECURITY MANAGEMENT PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide an IC card security management method in which key data cannot be directly read when the security of a regular file system is broken and a highly reliable IC card system can be provided, and to provide an IC card system and a storage medium storing an IC card security management program.;SOLUTION: When a processing request is obtained in a security management processing means, a key data logic address management file is accessed and the logic address of key data is obtained. A key data physical address management file is accessed based on the logic address of key data and he physical address of key data is obtained. Actual key data are obtained based on the obtained physical address of key data, and a security processing containing a certification/verification processing and a ciphering/decoding processing is executed by using key data and data being a security processing object.;COPYRIGHT: (C)2000,JPO