VERIFICATION OF MOVEMENT OF ITEMS

摘要

Apparatus and system for verifying a route taken during movement of an RFID tag, comprising a trusted platform module; sealed storage (80) comprising one or more stores (50, 52) for storing a public key (64), a private key (68) and a policy (62); and processors arranged to: receive data (60) read-out from the RFID tag (4) and comprising an RFID tag identity and an encrypted signature (9); use the public key (64) to decrypt the encrypted signature (9); verify that the decrypted signature (9) corresponds to a first entity from which, according to the policy (62), a second entity is authorised to receive the given RFID tag (4); use the private key (68) to provide an encrypted signature (9); and forward data comprising the encrypted signature (9) to an RFID tag writer (22).