RFID SECURE AUTHENTICATION

摘要

Authentication systems and methods for a population of devices each associated with an RFID tag are described. For each device, a secret key is combined cryptographically with a publicly-readable unique identifier (UID) of an RFID tag to obtain a unique authorization signature. The RFID tag is prepared utilizing the unique authorization signature as memory-access and/or tag-operation password(s). The systems and methods may safeguard against attacks whereby compromise of a single tag will not compromise the entire population of devices and may reduce or eliminate the use of inappropriate surgical devices during a surgical procedure.

主权项

1. A method of authenticating an RFID tag, comprising:
selecting a secret key; preparing the RFID tag, wherein preparing the RFID tag comprises:
reading a unique identification code from the RFID tag;creating an authentication signature from the secret key and the unique identification code; andsetting a password of the RFID tag to the authentication signature; and authenticating the RFID tag, wherein authenticating the RFID tag comprises:
reading the unique identification code from the RFID tag;re-creating the authentication signature from the secret key and the unique identification code;attempting to access a function of the RFID tag by providing the authentication signature to the RFID tag as the password; anddetermining that the RFID tag is authentic if the attempt to access a function of the RFID tag is successful.