PORTABLE ELECTRONIC DEVICE AND PERSONAL AUTHENTICATION METHOD IN WHICH BIOLOGICAL INFORMATION IS USED

摘要

PROBLEM TO BE SOLVED: To provide a personal authentication method with high security by using biological information which is impossible to be stolen or imitated. SOLUTION: Characteristic volume of the biological information is stored as registration data in a portable electronic device (IC card). A user inputs one's biological information in a data processor (IC card terminal, etc.) (401). The characteristic volume is extracted regarding the inputted biological information (402) and transmitted to the portable electronic device by the data processor. The personal authentication is performed by collating characteristic data inputted from the data processor with the registration data in the portable electronic device.