Money embedding RFID tag, Method for encrypting money embedding RFID tag, Method for verifying counterfeited money embedding RFID tag, User tracking method for money embedding RFID tag and Record medium thereof

摘要

A method for applying an RFID tag and a recording medium in which the same is recorded are provided to detect the forgery of money by using the money having a built-in RFID tag, and prevent the privacy intrusion of a person who possesses the money by updating a cryptogram transmitted the built-in tag. A method for encryption of the money having a built-in RFID tag is realized by the following components. The first cryptogram storing unit(110) stores the first cryptogram which is generated randomly according to a tag key stored previously in the tag. A counter unit(120) updates a counter value whenever the query of a reader is generated. The second cryptogram generating unit(130) which produces the second cryptogram by using a stored random number as the input value of a hash function. A transmission unit(140) transmits the generated second cryptogram and counter value whenever the query of the reader is generated. A memory(150) stores information about the money.