AUTHENTICATION DEVICE, AUTHENTICATION SYSTEM, AND AUTHENTICATION METHOD

摘要

In order to improve the safety and reliability of services provided by a computer, this authentication device is equipped with a transmission unit and a determination unit. The transmission unit transmits a challenge to a terminal device where the challenge is presented to a user to be authenticated, said challenge being information serving as the basis on which the user inputs information to be used for authentication processing. At this time, the transmission unit transmits a plurality of different challenges to the terminal device. The determination unit determines not only whether or not a response input to the terminal device by the user in response to each challenge is correct, but also whether or not time information regarding the challenge and the response thereto satisfies a condition regarding the response.

主权项

1. An authentication device comprising:
a transmission unit that transmits a challenge to a terminal device on which the challenge is presented to a user of being authenticated, the challenge being information serving as a basis on which the user inputs information to be used in an authentication process; and a determination unit that performs the authentication process to determine whether a response is correct or wrong, the response being information which is inputted by the user to the terminal device based on the challenge, wherein the transmission unit includes a function to transmit, to the terminal device, a plurality of challenges to the user, the challenges being different from one another, and at least one of the challenges is information requesting the user to make the response that includes biometric information on the user; and wherein the determination unit further includes a function to determine whether time information regarding the challenge and the response to the challenge satisfies a condition regarding the response.