AUTHENTICATION DEVICE USING INTRINSIC RANDOM NUMBER GENERATING ELEMENT OR PSEUDO-RANDOM NUMBER GENERATING ELEMENT, AUTHENTICATION APPARATUS, AND AUTHENTICATION METHOD

摘要

An authentication device using an intrinsic or pseudo-random number generating element, for example, a USB token, an authentication apparatus using this, an authentication method, and authentication system. In an authentication system, an authentication device is prepared on the user side, and one of two codes generated in the authentication device is used to encrypt the other code. The authentication apparatus registers the codes and decrypts the encrypted code sent from the authentication device by using the registered codes to perform authentication.