Portable electronic device and method for personal identification

摘要

A method for identifying a person using biometric information is provided. A portable electronic device (10) such as an IC card stores feature values of the biometric information as registered data. When a user enters the biometric information of his own into a data processing device (20) such as IC card terminal, the data processing device extracts feature values about the inputted biometric information and sends it to the portable electronic device. The portable electronic device matches the features inputted by the data processing device to the registered data for performing personal identification. For reducing the processing load burdened on the portable electronic device, the portable electronic device entrusts part of the processing to the data processing device. This allows the portable electronic device and the data processing device to work in concert. <IMAGE>