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160110_ChameleonMini_history_smaller.pdf

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160110_ChameleonMini_history_smaller.pdf

  1. 1. A Multifunctional RFID/NFC Tool A Bit of History
  2. 2. 2 2006: Coffee Cup Tag Emulator
  3. 3. 3 2006: Coffee Cup Tag Emulator 1. Antenna Design
  4. 4. 4 2006: Coffee Cup Tag Emulator 2. Load Modulation
  5. 5. 7 2007: Fake Tag
  6. 6. 8 2010: The Primal- A Versatile Emulator for Contactless Smartcards  Mifare Classic: Crypto1 stream cipher  Mifare DESFire MF3ICD40: Auth. with (3)DES  Mifare DESFire EV1: Auth. with AES-128, (3)DES  … and other ISO14443 / ISO15693 cards Atmel ATXmega
  7. 7. 9 2013: Rev.D
  8. 8. 10 2014: Rev.E open source project: https://github.com/emsec/ChameleonMini • 8 card slots • Breakable antenna • Improved USB command set • Widespread
  9. 9. 11 Rev.E Block Diagram of Hardware
  10. 10. 12 Rev.E Block Diagram of Firmware
  11. 11. 13 Rev.E is not enough… Testing FRAM and ATXMega128A4U
  12. 12. 14 Rev. F • FRAM • Li-Ion Battery • (Basic) RFID Reader • ISO 14443/15693 • Sniffing • Log Mode
  13. 13. 15 Rev.F Log Mode / Sniffing • Emulation: monitor RFID reader and Chameleon • Sniffing: Chameleon is „invisible“ during recording • Precise time stamps • Live logging
  14. 14. 16  Virtual wallet with up to eight cards  User-definable token for access control  upgrade of (cryptographic) algorithms possible  Compliance tests (in fab)  Functional tests with NFC door lock systems  Pentesting/Fuzzing of RFID/NFC Readers: send unexpected data  buffer overflow, …  Power-switch: effective privacy protection/ Relay-attack countermeasure (user interaction)  Research / teaching (RFID / NFC / lightweight crypto)  …. Some Use Cases
  15. 15. 17 as a Flight Recorder 1. System in test mode (everything is allowed)  Record and analyze all communication  Distinguish normal behavior / attacks / bugs / user errors 2. Block all unwanted actions 3. System in „normal operation“ mode  Keep track of further errors and react
  16. 16. 18 Creative Usage of (Florian Bache @ RUB)
  17. 17. 19 Long Range ISO14443 Contactless Card
  18. 18. 20 A Useful Book: (NFC Tag Range Extension: more than 70cm)
  19. 19. 21 Thanks for supporting the ChameleonMini project!

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