Keywords
Citation
(2006), "ID automatic identification system, tag device, center device, ID automatic identification method, program, and recording medium", Sensor Review, Vol. 26 No. 2. https://doi.org/10.1108/sr.2006.08726bad.005
Publisher
:Emerald Group Publishing Limited
Copyright © 2006, Emerald Group Publishing Limited
ID automatic identification system, tag device, center device, ID automatic identification method, program, and recording medium
ID automatic identification system, tag device, center device, ID automatic identification method, program, and recording medium
Keywords: Identification, Patents
Applicant: Nippon Telegraph & TelephonePatent number: JP2005167670Publication date: 23 June 2005
Problem to be solved. To inexpensively and sufficiently prevent the tracking of ID information by an unauthorized third party without applying a large processing load to a centre device in RFID and AutoID or the like.
Solution. Recording ID information UIDj and temporary information CNT are recorded in a tag device 10. A master key and its key ID number (MKj, KIDj) are recorded in the tag device 10 and the centre device 30. A temporary key OSK generated by using the CNT and the MKj in the tag device 10. The UIDj is encrypted by using the temporary key OSK, and variable ID information nonceID is generated. After the temporary information CNT is updated to CNT in the tag device 10; the generated nonceID, the CNT, and the KIDj are transmitted to the centre device 30. The centre device 30 generates the OSK by using the nonceID, the CNT, the KIDj, and the recorded (MKj, KIDj) and decrypts the UIDj.