| 摘要 |
In an information-processing device connected through a network to external devices which provide predetermined services respectively, and to one or more authentication devices each including an authentication unit which authenticates a user who uses the services of the external devices, service-provision units provide the user with mutually different interfaces to the services of the external devices respectively. An authentication control unit requests, in response to an authentication request from the service-provision units, the user to input user information, and transmits to one of the authentication devices a request for performing an authentication processing based on the user information. An authentication-information management unit associates and manages the user information inputted by the user, requesting-device identification information to identify a requesting service-provision unit, and requested-device identification information to identify uniquely the one of the authentication devices to which the request for performing the authentication processing is transmitted.
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