AUTHENTICATION COORDINATION SYSTEM AND ID PROVIDER DEVICE

摘要

Without an SSO device of an ID provider being altered, and in accordance with a condition existing when a user requests an SSO, the invention enables an assessment of whether a service can be used without human intervention, said assessment being made when executing account registration and account coordination, which are executed with an SSO process. An ID provider device according to one embodiment of the invention is provided with: a policy information storage unit that stores policy information that indicates a user for whom sending of service data is to be permitted; an authentication coordination request advance processing unit that, upon receiving an authentication coordination request, performs a policy evaluation process and an account coordination process in a timing corresponding to a user terminal login status; and an authentication coordination request transfer unit that, upon receiving the authentication coordination request from a service provider device, transfers the authentication coordination request to the authentication coordination request advance processing unit.