Patent ID: 9004367
Filing Date: 2015-04-14
Classification: G06F,G06K,H04L,H04W

Abstract:
1. A radio frequency identification (RFID) tag comprising: a first memory to record a first key to be used for an access to an RFID reader; a second memory, distinct from the first memory, to record a second key transmitted from the accessed RFID reader; an inspector to generate a check value inspected in relation to the second key, in response to an input of a check value from the RFID reader; and a processor to determine the second key to be a key to be used for the access to the RFID reader, when the generated check value corresponds to the input check value; wherein the processor maintains use of the first key as the key to be used for the access to the RFID reader and invalidates the second key in the second memory, when a reset occurs while the second key is being recorded in the second memory, or when the check value is not input from the RFID reader within a predetermined time after the second key is recorded in the second memory.