Methods to secure RFID transponder Data

摘要

One embodiment relates to a method of protecting the confidentiality of data in an RFID transponder that tags an item, at the point of acquisition of the item by a user comprising: communicating with a key storage device (e.g. a card, portable terminal, web server, and so on), by a point-of-sale terminal, to acquire a public key of a cryptographic public-private key pair of the user, encrypting, by the point-of-sale terminal or the transponder, at least some of the RFID transponder data using the user's public key, and writing the encrypted RFID transponder data in the RFID transponder. This method enables the information embodied in the RFID transponder-data to be kept confidential after the user has acquired the tagged item but to be capable of retrieval in an environment such as a smart home in which smart devices equipped with an RFID reader have access to the user's private key.

主权项

1. A method of securing RFID transponder data of an RFID transponder designated, by a user, for acquisition, the method comprising:
communicating, by a point-of-sale terminal, with a key storage device to acquire the public key of a cryptographic public-private key-pair of a user who designates an RFID transponder to be acquired, encrypting RFID transponder data of said RFID transponder using the public key determined in the determining process, and writing the encrypted RFID transponder data in a memory, of said RFID transponder.