| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a configuration which allows widely developing various services using an RFID without being accompanied by increase of costs or the deterioration of security. <P>SOLUTION: An RFID gateway includes a decryption part for decrypting encrypted tag information received from a user device which has read a radio ID tag ("RFID") by using a predetermined cryptogrpahic key; a temporary storage part for generating random numbers to be used as retrieval keys, and for storing the random numbers and the decrypted tag information in association, and for returning the generated retrieval key to the user device; and an answering part for responding to the inquiry of the tag information corresponding to the retrieval key from a service providing device. The service providing device accepts the service request including the retrieval key from the user device which has read the RFID, and obtains the tag information by transmitting the retrieval key to the RFID gateway, and provides a service corresponding to the information written in the RFID to a user device by using the obtained tag information. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
