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Radio-frequency identification

The Consumer World of. Radio-frequency identification. You’ve seen it before…. Books Digital Media Computer Hardware Other high value items. RFID in the store RFID in your wallet The downside The future. RFID in the Supermarket. Supply Chain Suppliers Manufacturing Distribution

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Radio-frequency identification

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  1. The Consumer World of Radio-frequency identification

  2. You’ve seen it before… • Books • Digital Media • Computer Hardware • Other high value items

  3. RFID in the store • RFID in your wallet • The downside • The future

  4. RFID in the Supermarket • Supply Chain • Suppliers • Manufacturing • Distribution • Shelves • Checkout

  5. The Supply Chain • Parts from suppliers are labeled with RFID tags and sent to a manufacturer • Tag readers at the manufacturer count the parts and update inventory • Pallets of completed products are labeled with RFID tags and sent to the distributor • The distributor breaks up these large pallets and send smaller amounts of items to various stores

  6. On the Shelf • Each item on the shelves would include an RFID tag in its packaging • Allows a central computer to • Keep a moment to moment live inventory • Track every item on every shelf • Alert clerks to misplaced items

  7. Checkout • Removes the need for scanning each item one at a time • Just push the whole cart through a gateway • A computer totals the items and asks you to pay

  8. RFID in Your Wallet • Shopper’s Card • Kroger Plus • Sam’s Club • Credit/Debit • Chase Blink • Amex ExpressPay

  9. RFID Card Specs • Contain a chip holding the carrier’s name, card number, security card, and expiration date • Encrypted using 128-bit encryption and Triple-DES • Send unique, one use codes when challenged by the chip reader

  10. The Downside • Computer Errors • Privacy Concerns • RFID tags will remain active beyond the store • Tracking tags • Concerns about RFID shelving • Credit/Debit card skimming

  11. Card Skimming • Secretly scanning credit cards to gain access to the stored information, OR • Intercepting the data stream between a card and the tag reader • $8 signal interception chip available online • Freely available DIY schematics for a $30 unit that is capable of breaking the encryption on many cards

  12. Scandal! • 2003, the Broken Arrow Incident • Confirmed fears of RFID shelving • Wal-Mart and P&G accused of spying on customers • 2003, Benetton Clothing Boycott • Italian clothing company announced plans to place RFID tracking tags in their major clothing line

  13. Scandal!, cont. • 2006, British Passports • Intended to ease border crossings • Included a chip containing name, DOB, address, and a digital photo • Encrypted using a much stronger encryption than RFID credit cards • Required a challenge by a government issued reader • Broken in 48 hours

  14. References • http://queue.acm.org/detail.cfm?id=1626175 • http://www.openpcd.org/Openpicc.0.html • http://www.wired.com/science/discoveries/news/2008/06/dayintech_0626?currentPage=2 • http://msdn.microsoft.com/en-us/library/ms954628.aspx • http://www.popularmechanics.com/technology/how-to/4206464 • http://www.engadget.com/2008/03/19/rfid-credit-cards-easily-hacked-with-8-reader/ • http://www.spychips.com/press-releases/broken-arrow.html

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