| 摘要 |
PROBLEM TO BE SOLVED: To make transmittable/receivable information by using an input/output interface desired by a user while surely protecting the profile of the user for which the security of high level is requested. SOLUTION: Individual files for storing the profiles of users are hierarchically prepared for plural layers on the storage medium, the profile of the user requested with the security of high level is stored in the individual file of a deep hierarchy and the profile of a user requested with positive presentation is stored in the individual file of a shallow hierarchy. Thus, operation is enabled with the input/output interface desired by the user before the success of initial authentication and the security for the profile of the user requested with the security of high level can be secured at high level. |
