1. A method for a Radio Frequency Identification (RFID) system to cause an RFID integrated circuit (IC) having a first parameter to execute an action, the method comprising: sending a first command to the IC; receiving from the IC at least an identifier and an encrypted version of the first parameter; determining a key using the received identifier; recovering the first parameter from the encrypted version using the key; sending to the IC a single second command including at least a first portion of the first parameter; and causing the IC to execute an action defined by at least the second command upon verifying at least the first portion of the first parameter.