Patent ID: 8745711
Filing Date: 2014-06-03
Classification: G06F,H04L

Abstract:
1. An access management system including an access management server for managing user accounts and tokens corresponding to the managed user accounts, and a cooperation server for causing processes of a plurality of services to cooperate with each other, wherein said access management server comprises: issuance unit configured to issue a token corresponding to a managed user account in response to a request of said cooperation servers; account deletion unit configured to delete a user account, of the managed user accounts, which satisfies a predefined deletion conditions; and token deletion unit configured to delete an expired token of the tokens issued for the managed user accounts, and wherein said cooperation server comprises: acquisition unit configured to acquire, when acquisition of a token corresponding to a user account managed by said access management server is requested by another server, if said account deletion unit has not deleted the user account, an issued token corresponding to the user account, and to cause, if said account deletion unit has already deleted the user account, said access management server to re-register the user account to acquire a token issued for the re-registered user account; and request unit configured to request, if the issued token acquired by said acquisition unit is expired, said issuance unit to reissue a token, wherein, if said token deletion unit has deleted the token corresponding to the user account re-registered by said acquisition unit, said request unit requests said issuance unit to reissue a token corresponding to the re-registered user account.