| 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. |
