Patent ID: 8421595

Claim:
A method for identity authentication using biometrics in an authentication system that at least comprises a local device and an authentication server, said method comprising: an input step of inputting biometric data into said local device via a biometric sensor; a match step of matching said inputted biometric data with original biometric data pre-stored in a memory of said local device; a first identification code generation step of generating a first identification code in said local device if said inputted biometric data is matched with said biometric data pre-stored in the memory; and an authentication step of sending said first identification code to the authentication server so that the authentication server authenticates said first identification code to authorize said system to perform authorized operations, wherein said authentication step further comprises the steps of receiving an authentication request by the authentication server; receiving said first identification code; generating a second identification code by using the same method as the first identification code generation step; and comparing the received first identification code with the second identification code to determine whether to authorize performance of the authorized operations, wherein the step of generating the second identification code further comprises the steps of reading current time information and static data of an authenticated user; and generating the second identification code based on the read time information and static data, and wherein time is cut into a plurality of successive time slices with a predetermined time interval, and identification codes generated in a same time slice are identical to each other while identification codes generated in different time slices are different from each other.