Method for verifying RFID tag and reader each other in EPC C1G2 RFID system

摘要

mutual authentication method between the tag and the reading device in the EPC C1G2 RFID system according to the present invention from the read device initiating an inventory round by the Curie received command; Sending to the reading device to generate a predetermined first random number; Receiving an ACK command, and the second random number and the first random number is generated by the reading device the reading device that includes the encrypted private key value; Characterized in that it comprises a; and the ACK command are equal by comparing the extracted random number and the first random number and the secret key decryption step for transmitting their own information after authenticating the reading device to the reading device , after the tag authenticates the reader since the tag is recognized by the reading apparatus may restrict access to unauthorized reading device, the reading device is able to prevent the tag from the tag tamper authentication.