Authentication executing,device portable authentication device and authentication`method using biometrics identification

摘要

An authentication method using biometrics identification, comprising the following steps of: identifying a user by biometrics entered from a portable authentication terminal; when the user has been registered previously, establishing communication between the authentication terminal and an authentication executing device independent of the authentication terminal, and calculating a common secret key for use in transmission of an authentication message; encrypting an authentication message including the user's inherent information in the authentication terminal based on the secret key; sending the encrypted authentication message from the authentication terminal to the authentication executing device; and decrypting the authentication message in the authentication executing device based on the calculated secret key, thereby executing an operation depending on the user. inherent information included in the message.