Abstract: A client apparatus transmits environmental information acquired from an environmental information acquisition device as well as a biometric authentication information matching result to a server apparatus. The server apparatus verifies the validity of the environmental information such as a luminance as well as the validity of the biometric authentication information matching result. If an environment is problematic, the server apparatus notifies the client apparatus that the environmental information is problematic. The client apparatus overcomes the problem of the environment such as the luminance based on the notification from the server apparatus and then retries a biometric authentication. The possibility of re-failure due to the environmental problem can be reduced during a retry of the biometric authentication.

Abstract: A configuration including, in authentication contexts, function unit identification information unique to the function unit that has executed an authentication subprocess in entity devices permits an authentication apparatus to specify the function unit that has executed the authentication subprocess in the entity devices. The verifier, therefore, can verify the legitimacy of the authentication subprocess from the authentication context even in the presence of a plurality of function units capable of executing the same authentication subprocess in the entity devices.

Abstract: In an information communication system, user personal information is batch-managed in a user management center apparatus. The center apparatus issues temporary information, which includes temporary user information and temporary authentication information, in response to a log-in request from a user terminal apparatus that designates a net-shop apparatus, and sends the information to the user terminal apparatus and the designated net-shop apparatus. Thereby, if the user terminal apparatus sends an authentication request to the net-shop apparatus on the basis of the information, the net-shop apparatus can authenticate the user terminal apparatus on the basis of the information from the user management center apparatus. At this time, the user personal information does not go to the net-shop apparatus, and there is no need for the net-shop apparatus to manage the user personal information.

Abstract: A verification device transmits challenge information to a first entity device, and for each authentication context received in return, verifies that challenge information identical to the challenge information transmitted in advance is described, to thereby confirm that the authentication context is the current one. As a result, a repetitive attack in which the past authentication context is repeatedly used is prevented and the security against repetitive attacks is improved.

Abstract: A client device transmits service identification information to an authentication device at the time of a service request, prompts selection of one or more authentication entity devices which execute one or more authentication subprocesses from among all the authentication entity devices adaptive to profile information received from the authentication device, based on “function list information defining an execution environment of each of the authentication entity devices”, transmits a request for executing an authentication subprocess to such selected each authentication entity device, and transmits to the authentication device “authentication context information including an execution environment and an execution result of an authentication subprocess” received from such each authentication entity device.

Abstract: Each of the embodiments of the present invention supplies date information issued from a third party to a digital signature of a first user apparatus for an electronic document. Originality of the electronic document is ensured by applying the digital signature of the third party to a set of the digital signature and date information. No electronic document is transmitted to the third party apparatus during originality assurance of the electronic document. Accordingly, it is possible to decrease loads to the third party and associated networks even if the third party apparatus is congested with accesses. Since there is registered an undeniable signature for a second user apparatus, it is possible to prevent the second user apparatus from denying the reception.

Abstract: In an information communication system, user personal information is batch-managed in a user management center apparatus. The center apparatus issues temporary information, which includes temporary user information and temporary authentication information, in response to a log-in request from a user terminal apparatus that designates a net-shop apparatus, and sends the information to the user terminal apparatus and the designated net-shop apparatus. Thereby, if the user terminal apparatus sends an authentication request to the net-shop apparatus on the basis of the information, the net-shop apparatus can authenticate the user terminal apparatus on the basis of the information from the user management center apparatus. At this time, the user personal information does not go to the net-shop apparatus, and there is no need for the net-shop apparatus to manage the user personal information.

Abstract: A seamless system according to the present invention manages data obtained by associating user identification data accepted from a device with processing identification data indicating a process requested to be executed from the device, registers in the data restart achievement data to be used to achieve restarting of the process indicating processing identification data, acquires the processing identification data and restart achievement data corresponding to the user identification data based on the data when a restart request and the user identification have been accepted, and provides to an originating device making a restart request an execution result of the process indicated by the processing identification data obtained based on the restart achievement data.

Abstract: Each of the embodiments of the present invention supplies date information issued from a third party to a digital signature of a first user apparatus for an electronic document. Originality of the electronic document is ensured by applying the digital signature of the third party to a set of the digital signature and date information. No electronic document is transmitted to the third party apparatus during originality assurance of the electronic document. Accordingly, it is possible to decrease loads to the third party and associated networks even if the third party apparatus is congested with accesses. Since there is registered an undeniable signature for a second user apparatus, it is possible to prevent the second user apparatus from denying the reception.

Abstract: A directory information management apparatus using a tree structured database wherein entries are registered in a tree shape, the entry comprising at least one attribute, the directory information management apparatus comprises a schema database which stores object classes for entry types, the object class comprising at least one attribute, a template generating section which, when a new entry type is created from object classes, reads object classes in accordance with an entry type from the schema database, combines duplicate attributes belonging to the object classes, and generates template information indicating attributes included in the entry, and a template database which stores the generated template.

Abstract: An access control function is provided for permitting an access only to data concerning a designated user when an access to data stored for a plurality of users occurs. Furthermore, an executing function is provided of designating the user having performed an operation with respect to the access control function, and using the access control function to access the data concerning the stored user, when an access to the stored data concerning the user is necessary in a processing based on the operation of the user.