Access control system, and access control device and resource providing device used for the same
First Claim
1. An access control device for controlling an access from a resource use device to a resource providing device for using a resource provided by the resource providing device;
- the access control device comprising;
a communication unit for communicating with the resource use device and the resource providing device;
an access permission unit for instructing the resource providing device via the communication unit to permit an access from the resource use device;
a storage unit for storing information on the resource use device which has been permitted to access by the access permission unit as management information;
an existence check unit for checking a communication state with the resource use device, the management information of which is stored in the storage unit, via the communication unit; and
an access discard unit for instructing the resource providing device via the communication unit to reject an access from the resource use device, communication with which is determined to be disconnected by the existence check unit.
2 Assignments
0 Petitions
Accused Products
Abstract
Has an object of discarding an access permission to be discarded quickly and preventing illegal use of a device providing resources. A communication unit 101 communicates with a resource use device 30 and a resource providing device 20. An access permission unit 106 instructs the resource providing device 20 to permit an access from the resource use device 30. A storage unit 103 stores information on the resource use device permitted to access as management information. The existence check unit 107 checks a communication state with the resource use device 30, the management information of which is stored in the storage unit 103. The access discard unit 108 instructs the resource providing device 20 to reject an access from the resource use device 30, communication with which is determined to be disconnected by the existence check unit 107.
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Citations
19 Claims
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1. An access control device for controlling an access from a resource use device to a resource providing device for using a resource provided by the resource providing device;
- the access control device comprising;
a communication unit for communicating with the resource use device and the resource providing device;
an access permission unit for instructing the resource providing device via the communication unit to permit an access from the resource use device;
a storage unit for storing information on the resource use device which has been permitted to access by the access permission unit as management information;
an existence check unit for checking a communication state with the resource use device, the management information of which is stored in the storage unit, via the communication unit; and
an access discard unit for instructing the resource providing device via the communication unit to reject an access from the resource use device, communication with which is determined to be disconnected by the existence check unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 19)
- the access control device comprising;
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10. A resource providing device for accepting an access from a resource use device permitted to access by an access control device and providing a resource, the resource providing device comprising:
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a communication unit for communicating with the access control device and the resource use device;
a storage unit for storing information on the resource use device intended by an instruction given by the access control device via the communication unit as management information;
an access permission unit for permitting an access from the resource use device, the management information of which is stored in the storage unit;
an existence check unit for checking a communication state with the access control device via the communication unit; and
an access rejection unit for rejecting an access from the resource use device permitted to access by the access control device, communication with which is determined to be disconnected by the existence check unit;
wherein the information on the resource use device includes information for identifying the resource use device and information for identifying the access control device which has permitted the resource use device to access. - View Dependent Claims (11, 14, 15, 16, 17)
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12-13. -13. (canceled)
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18. An access control system comprising:
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a resource providing device for providing a resource;
a resource use device for accessing the resource; and
an access control device for controlling an access by the resource use device;
wherein;
the access control device includes;
a communication unit for communicating with the resource use device and the resource providing device;
an access permission unit for instructing the resource providing device via the communication unit to permit an access from the resource use device;
a storage unit for storing information on the resource use device permitted to access by the access permission unit as management information;
an existence check unit for checking a communication state with the resource use device, the management information of which is stored in the storage unit, via the communication unit; and
an access discard unit for instructing the resource providing device via the communication unit to reject an access from the resource use device, communication with which is determined to be disconnected by the existence check unit; and
the resource providing device includes;
a resource providing communication unit for communicating with the access control device and the resource use device;
a resource providing storing unit for storing information on the resource use device intended by the instruction given by the access control device via the resource providing communication unit as management information;
a resource access permission unit for permitting an access from the resource use device, the management information of which is stored in the resource providing storage unit;
a resource providing existence check unit for checking a communication state with the access control device via the resource providing communication unit; and
an access rejection unit for rejecting an access from the resource use device permitted to access by the access control device, communication with which is determined to be disconnected by the resource providing existence check unit, and an access from the resource use device intended by the instruction given by the access control device via the resource providing communication unit.
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Specification