1. RFID Mike Treon CPSC 310

2. What is RFID? Radio Frequency Identification Wireless link to transmit data and collect stored information. (EPC) Allows for contact-less identification of people, animals, or objects.

3. How RFID works Readers & Tags Readers: Produce low-level magnetic field. Tags: Antenna, Integrated Circuit (IC) Power from magnetic field allows the card to transmit the information to the reader.

4. More on tags Antenna, Chip, Core, Battery. Passive and Active Tags Read-Only & Read-Write, WORM Sensor Tags Cost $.50 - $1.00, target cost is $.05.

5. More on readers Antenna & Electronics Standard Interfaces Read Range High Frequency (850-950 MHz and 2.4-5 GHz) Intermediate Frequency (10-15 MHz) Low Frequency (100-500kHz)

6. Data communication in RFID Limited by the power and modulation/demodulation capabilities of the tags Considerations in coding techniques PPM or PWM to communicate from reader to tag Manchester or NRZ to communicate from tag to reader.

7. Coding Schemes

8. Collisions RFID complicates collision detection. Tags – Probabilistic & Deterministic Readers – Relinquished control

9. EPC Electronic Product Code

10. Advantages over Barcodes No need for line-of sight. Reprogrammable. Greater data storage. Less susceptible to damage.

11. Possible Applications Airline baggage tracking. Express parcels ID and tracking. Product ID and tracking from womb to tomb. Brand authentication. Document tracking. Library material handling. Wal-Mart

12. Security & Privacy Unprotected tags may have vulnerabilities to eavesdropping, traffic analysis, spoofing or denial of service. Unauthorized readers may compromise privacy by accessing tags without adequate access control.

13. Security/Privacy in the News NY Times – Car RFID Security System Cracked NY Times – Car RFID Security System Cracked Are Privacy Concerns Valid? RFID in schools under protest

14. Sources http://www.smartcodecorp.com http://www.verisign.com RDIF Technology Explained RFID Systems and Security and Privacy Implications RFID Systems and Security and Privacy Implications Security and Privacy Aspects of Low-Cost Radio Frequency Identification Systems Security and Privacy Aspects of Low-Cost Radio Frequency Identification Systems