摘要:
Upon issuance of an attribute certificate, an attribute authority apparatus makes a determination policy available. The determination policy includes information designating at least one item to be checked by a service provider apparatus for determination to be made to verify the attribute certificate, and a criterion for the determination. The determination policy may be recorded in the attribute certificate, or released to public, or made available by issuing a determination policy certificate released to public. Information for obtaining the determination policy certificate may be recorded in or outside the attribute certificate and furnished to the service provider apparatus. In order to verify an attribute certificate transmitted from a user terminal, a service provider apparatus obtains the determination policy, and determines whether data in the at least one item designated in the determination policy fulfill the criterion recorded in the determination policy.
摘要:
A client-server system is provided in which access to a service by a user can properly be controlled, even if an approval by another user is required for receiving the service. First, the server 2 executes a log-in processing by using a user identifier and password transmitted from the client terminal 2, and a user control file 202. Next, the server 2 executes a service control by using a service supply request transmitted from the client terminal 1 and a service control file 42 provided with the server. When the server determines that an approval by another user is required for providing the service, the server executes the approval request to the client terminal 1 that the concerned user uses. When the reply to the approval request is affirmative, the server executes the processing in accordance with the foregoing service supply request. When the reply is negative, the server informs to the user who made the foregoing service supply request that the approval is rejected.
摘要:
A distributed object system comprising at least one object distributing server, at least one client terminal and at least one server object execution server according to the present invention, including: an object distributing server for storing an object program to which an electronic signature is affixed; a client terminal including means for down-loading the object program from the object distributing server, means for verifying the electronic signature affixed to the object program, means for executing the client object program when the completeness of the object program is confirmed and the user of the client terminal beforehand permits execution of the client object program which is electronically signed by a signatory, and means for transmitting the electronic signature affixed to the object program to a server object execution server; and a server object execution server including means for verifying the signature received, and means for supplying services to the user of the client terminal when the completeness of the object program is confirmed and the user and the object program permit use of the services in advance, which makes it possible to prevent a client object which is down-loaded to a client terminal through a network and executed therein from carrying out unjustified processing (not intended by a user using the client terminal) by using authority of the user.
摘要:
A certificate management method is provided whereby a plurality of service providers have different reliable certificate authorities and, when certificates issued from the certificate authorities are implemented into a smart card, merely by revoking the certificate issued from the certificate authority on which the first service provider relies, all other implemented certificates can be revoked, and the certificates can be individually revoked. A system for implementing the method is provided. The certificate authorities n (n≧2) issue a certificate n by using a private key n′ corresponding to certificate n′ generated by using a certificate 1 issued from a certificate authority 1 which has previously been installed in the smart card and a corresponding private key 1. Thus, the issued certificates have a hierarchical chain relation. When the user wants to revoke all certificates, the certificate 1 issued from the certificate authority 1 is revoked.
摘要:
A Smart card-based service providing system and method, in which a service application uses resources of a common application and which can easily cope with an addition of a service application into the Smart card and thereby efficiently utilize valuable resources of the Smart card, is provided. A management application specially designed for access control is installed in the Smart card to solely manage access management information. A management of or a decision on an access right is not performed by the service application or the common application but by the management application. When a new application is added to the Smart card, the service provider device receives a permission to update access management information beforehand from the card issuer device and, based on the permission, updates the access management information.
摘要:
A Smart card-based service providing system and method, in which a service application uses resources of a common application and which can easily cope with an addition of a service application into the Smart card and thereby efficiently utilize valuable resources of the Smart card, is provided. A management application specially designed for access control is installed in the Smart card to solely manage access management information. A management of or a decision on an access right is not performed by the service application or the common application but by the management application. When a new application is added to the Smart card, the service provider device receives a permission to update access management information beforehand from the card issuer device and, based on the permission, updates the access management information.
摘要:
A certificate management method is provided whereby a plurality of service providers have different reliable certificate authorities and, when certificates issued from the certificate authorities are implemented into a smart card, merely by revoking the certificate issued from the certificate authority on which the first service provider relies, all other implemented certificates can be revoked, and the certificates can be individually revoked. A system for implementing the method is provided. The certificate authorities n (n≧2) issue a certificate n by using a private key n′ corresponding to certificate n′ generated by using a certificate 1 issued from a certificate authority 1 which has previously been installed in the smart card and a corresponding private key 1. Thus, the issued certificates have a hierarchical chain relation. When the user wants to revoke all certificates, the certificate 1 issued from the certificate authority 1 is revoked.
摘要:
To provide a novel authentication scheme to prevent PIN information from being exposed to the outside of a data carrier, without modifying an existing application for authentication management. The data carrier includes means for generating PIN information therein; a PIN storage unit for storing the generated PIN information with respect to the use of a service application; an authentication information storage unit for storing information unique to a user; an authentication application unit for authenticating the user by referring to the authentication information stored in the authentication information storage unit; means for verifying the PIN information stored in the PIN storage unit according to the authentication result by the authentication application; and a service application unit for performing a service according to the result of the verification of the PIN information by the verification means.
摘要:
In a terminal system for managing terminals coupled to a network, a terminal management server includes: a terminal information registration module for registering, in advance, information unique to each user of the terminal; an authentication module for executing authentication by comparing an ID and authentication information which are contained in an authentication request received from the terminal to user information set in advance; an authenticity determination module for determining, based on a predetermined investigation result received from the terminal, whether or not the terminal suffers falsification; and a unique information transmission module for transmitting, when the authentication is successful, and when the authenticity determination module has determined that the terminal does not suffer the falsification, the information unique to the each user to the terminal. The terminal outputs the information unique to the each user received from the terminal management server to a display unit.
摘要:
In a terminal system for managing terminals coupled to a network, a terminal management server includes: a terminal information registration module for registering, in advance, information unique to each user of the terminal; an authentication module for executing authentication by comparing an ID and authentication information which are contained in an authentication request received from the terminal to user information set in advance; an authenticity determination module for determining, based on a predetermined investigation result received from the terminal, whether or not the terminal suffers falsification; and a unique information transmission module for transmitting, when the authentication is successful, and when the authenticity determination module has determined that the terminal does not suffer the falsification, the information unique to the each user to the terminal. The terminal outputs the information unique to the each user received from the terminal management server to a display unit.