ENCRYPTING METHOD FOR ID OF RFID TAG, AUTHENTICATING METHOD OF RFID TAG AND RFID AUTHENTICATING SYSTEM USING THE SAME

摘要

A method for encrypting ID of an RFID tag, a method for authenticating the RFID TAG, and an RFID authentication method are provided to improve security and efficiency and protect privacy. The first seed information for the authentication of a user is selected and inputted(S10). A key generating function generates a first encryption key by using the seed information as the input(S11). When generating the first encryption key by using the first seed information, the decryption key is generated. The ID of the RFID tag is encrypted by using the first encryption key generated according to the first seed information(S12). The encrypted ID is stored in the RFID tag and the product attaching the ID is outputted(S14). The first seed information includes the biomedical information of a person.