USER AUTHENTICATING METHOD AND ITS SYSTEM, INFORMATION TERMINAL UNIT, SERVICE PROVIDING SERVER, OBJECT DISCRIMINATING METHOD AND ITS SYSTEM, CORRESPONDING RELATIONSHIP CONFIRMING METHOD AND ITS SYSTEM, OBJECT CONFIRMING METHOD AND ITS SYSTEM AND PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a user authenticating method and its system, an information terminal unit, a service providing server, an object discriminating method and its system, a corresponding relationship confirming method and its system, an object confirming method and its system, and a program capable of surely authenticating and confirming a human being, animals and plants or an object, and capable of improving accuracy.;SOLUTION: When a user is authenticated when the user of the information terminal unit 30 such as a cellular phone accepts an offer of service from the service providing server 20 via a network, an iris is authenticated, and a password is automatically renewed every time when providing the service to generate a new password used when providing the next time service. The same new password is stored in both the information terminal unit 30 and the service providing server 20.;COPYRIGHT: (C)2003,JPO