| 摘要 |
An information processing system includes a first authentication function unit that issues first authentication information which is necessary to perform an authentication collaboration function between the information processing system and an external service and indicates that an authentication is completed by a first authentication function; an administration unit that issues second authentication information which is necessary to use an internal service and indicates that the authentication is completed by a second authentication function and performs, when a collaboration authentication request using the second authentication information is received from an external apparatus and if the received second authentication information is authorized, the collaboration authentication request for the first authentication function and sends the collaboration authentication response from the first authentication function to the external apparatus; and an authentication function using unit that acquires the first authentication information by performing the authentication using the first authentication function. |
