Methods and apparatus for RFID device authentication
First Claim
1. A method for use in an RFID system comprising a plurality of RFID devices and at least one reader which communicates with one or more of the devices, the method comprising the steps of:
- receiving an identifier transmitted by a given one of the RFID devices;
determining at least first and second codes, wherein the first code is a valid code for the identifier, and the second code is an invalid code for the identifier;
communicating with the given device to determine if the device is able to confirm that the first code is a valid code and the second code is an invalid code.
14 Assignments
0 Petitions
Accused Products
Abstract
Methods and apparatus are disclosed for use in an RFID system comprising a plurality of RFID devices and at least one reader which communicates with one or more of the devices. In one aspect of the invention, an identifier transmitted by a given one of the RFID devices is received by a reader or by an associated verifier via the reader. At least first and second codes are determined, by the reader or verifier, with the first code being a valid code for the identifier, and the second code being an invalid code for the identifier. The reader, or verifier via the reader, communicates with the given device to determine if the device is able to confirm that the first code is a valid code and the second code is an invalid code.
-
Citations
28 Claims
-
1. A method for use in an RFID system comprising a plurality of RFID devices and at least one reader which communicates with one or more of the devices, the method comprising the steps of:
-
receiving an identifier transmitted by a given one of the RFID devices;
determining at least first and second codes, wherein the first code is a valid code for the identifier, and the second code is an invalid code for the identifier;
communicating with the given device to determine if the device is able to confirm that the first code is a valid code and the second code is an invalid code. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
-
-
17. A method for use in an RFID system comprising a plurality of RFID devices and at least one reader which communicates with one or more of the devices, the method comprising the steps of:
-
receiving an identifier transmitted by a given one of the RFID devices;
determining a code corresponding to the identifier, the code being utilizable to initiate a control function of the given RFID device;
transmitting the code to the given RFID device; and
designating the given RFID device as an unauthenticated device if it fails to provide an expected response to transmission of the code. - View Dependent Claims (18)
-
-
19. A method for use in an RFID system comprising a plurality of RFID devices and at least one reader which communicates with one or more of the devices, the method comprising the steps of:
-
receiving an identifier transmitted by a given one of the RFID devices;
transmitting a first code to the given RFID device;
receiving a second code from the given RFID device responsive to transmission of the first code to the given RFID device; and
determining if the second code is a valid code for the given RFID device;
wherein at least one of the first and second codes comprises a code which is stored in the given RFID device and utilized to initiate a corresponding control function of the given RFID device. - View Dependent Claims (20, 21, 22, 23)
-
-
24. An apparatus for use in an RFID system comprising a plurality of RFID devices and at least one reader which communicates with one or more of the devices, the apparatus comprising:
a processing device comprising a processor coupled to a memory, the processing device being configured to receive an identifier transmitted by a given one of the RFID devices, to determine at least first and second codes, wherein the first code is a valid code for the identifier, and the second code is an invalid code for the identifier, and to communicate with the given device to determine if the device is able to confirm that the first code is a valid code and the second code is an invalid code. - View Dependent Claims (25, 26)
-
27. An apparatus for use in an RFID system comprising a plurality of RFID devices and at least one reader which communicates with one or more of the devices, the apparatus comprising:
a processing device comprising a processor coupled to a memory, the processing device being configured to receive an identifier transmitted by a given one of the RFID devices, to transmit a first code to the given RFID device, to receive a second code from the given RFID device responsive to transmission of the first code to the given RFID device, and to determine if the second code is a valid code for the given RFID device.
-
28. An RFID device for use in an RFID system comprising a plurality of RFID devices and at least one reader which communicates with one or more of the devices, the RFID device being configured to transmit an identifier to the reader, to receive from the reader at least first and second codes, wherein the first code is a valid code for the identifier, and the second code is an invalid code for the identifier, and to transmit information to the reader indicating confirmation that the first code is a valid code and the second code is an invalid code.
Specification