RFID tags for ambient intelligence: present solutions and future challenges

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at LETI Overview of RFID Basic principles Regulation Performance & cost RFID and

1 RFID tags for ambient intelligence: present solutions and future challenges Photo au choix Photo au choix Photo au choix Presentation Outline Smart devices program at LETI Overview of RFID Basic principles Regulation Performance & cost RFID and AmI Business models and scenarios Future challenges Privacy SOC 05 oct 14th, - H.Metras 2

Ultra low power low cost SR radio Leti : activities, facts & figures. 160 M yearly revenues. 44 M investment. 70% from contractual resources.

570 hosted scientists Users Systems Integration Micro components Technologies for miniaturization 20 % Systems for biology & health Systems for

Metras 3 Context Spread of electronic functions Inputde vices (sensor s) Smart accessor y Processo Memor rs y Datalo gger Battery powered sensor (PBS)

2 Ultra low power low cost SR radio Leti : activities, facts & figures. 160 M yearly revenues. 44 M investment. 70% from contractual resources. > 150 patents in CEA employees. 570 hosted scientists Users Systems Integration Micro components Technologies for miniaturization 20 % Systems for biology & health Systems for communications Silicon microelectronics Components for optronics 60 % Silicon microsystems 20 % SOC 05 oct 14th, - H.Metras 3 Context Spread of electronic functions Inputde vices (sensor s) Smart accessor y Processo Memor rs y Datalo gger Battery powered sensor (PBS) RFID tag (selected ) 2 m WRPS Optical Point Me Selection of objects Mobile Terminal Embedded sensors Shortrange radio Applications User Interface to Al Engine Services (e.g. community content) IP Network, Network 10 m Selected BPS Wireless remote powered sensor (WRPS, selected) SOC 05 oct 14th, - H.Metras 4

3 Basic principles of RFID Inductive coupling Magnetic field (near field) 13,56 MHz Antenna = Coil POWER 2 elementary functions DATA 1- Power Transfer 2- Bi-directional data transfer POWER Electric coupling Electric field (Far field) at 868 MHz, 2,45 GHz Antenna = wired or planar DATA SOC 05 oct 14th, - H.Metras 5 Regulation Contactless Cards : frequency 13,56MHz, format of support : credit card : «Close coupling Contactless Cards» : remove contacts : «Proximity Coupling Contactless Card» : Ticketing, Credit cards, Electronic Purse : «Vicinity Coupling Contactless Card» : Access control Item management standards: «Automatic Identification Radio Frequency Identification for Item Management below 135 khz at 13,56 MHz at 2,45 GHz at 5,8 GHz at UHF Test & Conformance standards: Test and Conformance methodology Test for conformance methodology Test for performance methodology SOC 05 oct 14th, - H.Metras 6

Ultra low power low cost SR radio Performance & cost Reading distance Anticollision Data rate Cost - silicon die - antenna - tag materials - assembly DAG Systems for sport competition Hitachi µ-chip

4 Ultra low power low cost SR radio Performance & cost Reading distance Anticollision Data rate Cost - silicon die - antenna - tag materials - assembly DAG Systems for sport competition Hitachi µ-chip Alien microfluidic assembly technology SOC 05 oct 14th, - H.Metras 7 RFID and AmI Inputdevices (sensors) Smart accessory Processors Memory Datalogger RFID tag (selected) WRPS Optical Point Me Selection of objects Mobile Terminal Services (e.g. community content), Battery powered sensor (BPS) 2 m Embedded Shortrange sensors radio Applications User Interface to Al Engine IP Network Network 10 m Selected BPS Wireless remote powered sensor (WRPS, selected) SOC 05 oct 14th, - H.Metras 8

5 RFID and AmI Leading world Principaux déposants patents de brevets holders IBM Intermec Micron Toppan Mitsubishi Philips 3M Infineon Nokia Canon Hitachi Motorola, Inc. Siemens AG Texas Instruments Dai Nippon Printing Merck Patent Checkpoint Systems, Inc. Kodak Matsushita Seiko Epson Fuji Xerox NCR Corporation Lucent Technologies Inc. Pitney Bowes Inc. Sony SOC 05 oct 14th, - H.Metras 9 Privacy What are people afraid of? Risks Tag reading without the user consent and/or awareness Every device is traced (unique code for each product) Association between the object (+ the owner?/!) and a data basis Spam like strategies Spying of consumer behavior Refusal of rfid by consumer groups Source : CEA-LETI O Savry SOC 05 oct 14th, - H.Metras 10

6 Privacy The Kill Tag approach The Faraday Cage approach mobilecloak.com The Active Jamming Approach The Smart RFID Tag Approach The HashLock approach (Weis & al) The reencryption approach (Juels and Pappu, Golle &Al) Silent TreeWalking (Weis & al reader encryption) The Regulation Approach Source : The Blocker Tag:Selective Blocking of RFID Tags for Consumer Privacy Ari Juels, Ronald R Rivest, Michael Szydlo SOC 05 oct 14th, - H.Metras 11 Privacy Blocker tags The approach is based on singulation & tree walking protocols The blocker tags (two antennas) broadcast simultaneously a 0 & a 1 at each node of the tree (full blocker) or specific nodes (partial blocker) and forces the reader to explore large amounts of branches ( >> 2 64!!!). Source : The Blocker Tag:Selective Blocking of RFID Tags for Consumer Privacy Ari Juels, Ronald R Rivest, Michael Szydlo SOC 05 oct 14th, - H.Metras 12

7 Privacy Use of a specific device to unable communications between the tag and the reader. CPM READER TAG SOC 05 oct 14th, - H.Metras 13 Thank you for your attention

EPC Tag Authentication with Randomized Characteristics for Strong Privacy

182 IJCSNS International Journal of Computer Science and Network Security, VOL.6 No.9B, September 2006 EPC Tag Authentication with Randomized Characteristics for Strong Privacy Soohyun Oh, and Jin Kwak,