Abstract: A biometric authentication device and a terminal exhibit high security corresponding to a utilizing mode. The biometric authentication device includes a biometric information storage module performing mutual authentication with an electronic device by use of a common key, acquiring biometric information from the electronic device when validity is mutually authenticated and storing the biometric information in a biometric information storage module, and a biometric information authenticating module effecting the authentication with the electronic device by use of the public key, and authenticating, when the validity is authenticated, the biometric information stored in the biometric information storage module and the present biometric information.

Abstract: A biometric authentication device has high security by preventing intra-device information from being falsified and stolen by a third party. A biometric authentication device includes a biometric information storage module, a biometric information authenticating module for individual authentication, a mutual authentication module with the terminal, a registration counter corresponding to the mutual authentication, an authentication counter corresponding to the biometric authentication, a stoppage flag set when the value of the counter is larger than a predetermined value, and authentication control module for preventing the module from operating depending on the stoppage flag.

Abstract: A biometric authentication device and a terminal exhibit high security corresponding to a utilizing mode. The biometric authentication device includes a biometric information storage module performing mutual authentication with an electronic device by use of a common key, acquiring biometric information from the electronic device when validity is mutually authenticated and storing the biometric information in a biometric information storage module, and a biometric information authenticating module effecting the authentication with the electronic device by use of the public key, and authenticating, when the validity is authenticated, the biometric information stored in the biometric information storage module and the present biometric information.

Abstract: A user authentication apparatus includes: means for storing biometric authentication information obtained from a user; means for communicating with a electronic equipment, which authenticates the user with the user's biometric authentication information; means for sending, in response to a first inquiry from the electronic equipment, store location definition information, which defines store locations of various output information; and output means for outputting, in response to a read request sent from the electronic equipment to designate a store location defined by the store location definition information, the output information along with identification information which indicates the type of the output information.

Abstract: A biometric authentication device has high security by preventing intra-device information from being falsified and stolen by a third party. A biometric authentication device includes a biometric information storage module, a biometric information authenticating module for individual authentication, a mutual authentication module with the terminal, a registration counter corresponding to the mutual authentication, an authentication counter corresponding to the biometric authentication, a stoppage flag set when the value of the counter is larger than a predetermined value, and authentication control module for preventing the module from operating depending on the stoppage flag.