PROBLEM TO BE SOLVED: To reduce the cost and the workload at the system side and the user side when performing multi-factor authentication, and to introduce multi-factor authentication easily.;SOLUTION: An authentication proxy device 1 includes a utilization qualification management memory means 13, a proxy source management memory means 14, and a generation means. It receives a request from a terminal 2 and generates a profile including an authentication identity information necessary for multi-factor authentication required by a proxy source system 3 by referring to the utilization qualification management memory means 13 and the proxy source management memory means 14 and then transmits the profile to the terminal 2. The terminal 2 includes a receiving means for receiving the profile, a collection means for collecting authentication identity information to be set and inputted the terminal and corresponding to the authentication identity information included in the profile, an authentication means for perform multi-factor authentication using the authentication identity information in the profile and the collected authentication identity information, and a connecting means for accessing the proxy source system 3 when multi-factor authentication is successfully performed.;COPYRIGHT: (C)2009,JPO&INPIT
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