An object of the present invention is to provide a portable personal
authentication apparatus which can perform personal
authentication, being essential in a future society, anywhere and be used for all purposes and an electronic
system to which access is permitted by the apparatus. A
mobile device, such as a
cellular telephone or a PDA, is used with a portable personal
authentication apparatus as a portable communication terminal device 51 and at least one of biological features including a man's
fingerprint, voiceprint, and irisprint is used as a medium for authenticating a person as, for example, the user himself / herself. That is to say, biometric authentication is performed. In addition, functions like an
electronic purse a conventional IC card etc. had are included in the portable communication terminal device (portable personal authentication apparatus) and the portable communication terminal device is connected to ATM equipment etc. This enables the portable communication terminal device to be managed unitarily as an
electronic purse. Furthermore, a portable communication terminal device (portable personal authentication apparatus) is used for authenticating a person as, for example, the driver himself / herself in the case of canceling urgent notification in a notifying
system. This will increase the reliability of notification.