Importance

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Abstract

Radio frequency identification (RFID) system comprising a read-write device 1, including a memory unit 3 for storing a plurality of basic opcodes ba-op, an RFID tag 5, including a memory unit 8 for storing data item and a plurality of opcodes cr-op; the basic opcodes ba-op and opcodes cr-op drives the communication between the read-write device 1 and the RFID tag 5 according to a standard air interface. The memory unit 3 comprises a mapping function fx for transforming said basic operands ba-op in said operands cr-op; the opcodes cr-op are in crypted format and the mapping function fx authorises the communicative connection between the RFID tag 5 and the read-write device 1. The memory unit 3 also comprises a plurality of optional operating codes opt-op and the memory unit 8 also comprises a plurality of further optional operating codes opt-cr-op in crypted format. The mapping function fx also transforms the optional operating codes opt-op in such further optional operating codes opt-cr-op. The mapping function fx authorises the communicative connection between the RFID tag 5 and the read-write device 1.

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First Claim