Patent ID: 7653378

Claim:
An authentication system comprising a mobile terminal having an e-money function, an authentication apparatus carrying out user authentication regarding the mobile terminal, and a billing apparatus carrying out billing by using the mobile terminal, the mobile terminal comprising: imaging means for obtaining an image of a subject by photography; first storage means where c-money information is read from and written in by information reading writing means carrying out reading and writing of the e-money information; mobile terminal communication means for carrying out various kinds of communication; mobile terminal input means for receiving input of various kinds of instructions by a user; mobile terminal display means for carrying out various kinds of display; second storage means accessible only by predetermined application software; warning means for carrying out warning through detection of the information reading writing means by the predetermined application software; and mobile terminal control means for allowing photography of the user by the imaging means and input of a password, for sending the password to the authentication apparatus, for storing a photographed image in the second storage means in the case where the authentication apparatus has authenticated the user, for displaying the photographed image stored in the second storage means on the display means for carrying out the warning by the warning means in the case where the control means has detected the information reading writing means, according to the predetermined application software; the authentication apparatus comprising: authentication apparatus communication means for carrying out various kinds of communication; and authentication apparatus control means for carrying out authentication of a person carrying the mobile terminal by the password in the case where the password has been received from the mobile terminal, and for sending information representing a result of the authentication to the mobile terminal; the billing apparatus comprising: billing apparatus input means for inputting various kinds of information; the information reading writing means for reading and writing the e-money information from and in the mobile terminal; and control means for carrying out billing based on the e-money information only in the case where input for allowing the billing is received from the billing apparatus input means.