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DoS attack-tolerant TESLA-based broadcast authentication protocol in Internet of Things

DoS attack-tolerant TESLA-based broadcast authentication protocol in Internet of Things. Author : Na Ruan , Yoshiaki Hori Published in: 2012 International Conference on Selected Topics in Mobile and Wireless Networking Presented : 102064506 劉立恆. O utline. Introduction

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DoS attack-tolerant TESLA-based broadcast authentication protocol in Internet of Things

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  1. DoS attack-tolerant TESLA-based broadcast authentication protocol in Internet of Things Author: Na Ruan, Yoshiaki Hori Published in: 2012 International Conference on Selected Topics in Mobile and Wireless Networking Presented: 102064506 劉立恆

  2. Outline Introduction WSN, VANET DOS TESLA protocol Original TESLA TESLA++ µTESLA Reviseprotocol Performance analysis

  3. Internet of Things

  4. WSN(Wireless Sensor Network) • Limitation of memory • Limitation of computation power • Limitation of power consumption

  5. VANET(Vehicular Ad hoc NETwork)

  6. Revised Protocol • Resisting of both computational and memory-based DoS attack. • Low complexity

  7. DOS • Memory based • Computation based

  8. TESLA (Timed Efficient Stream Loss-tolerant Authentication) Hash function f(Ki, M)

  9. TESLA++ 查表

  10. µTESLA • All packets sent within one time interval are authenticated with the same key. • Disclosed delay • ex: 2 time intervals • F(Ki)=Ki-1

  11. Revised protocol • Store MAC instead of Message(same as TESLA++) • Two-level key chain

  12. Comparison • Tolerate bothcomputational and memory-based DoS attack with low energyconsumption

  13. Performance

  14. Performance • Left • Relationship between Ba and Bd for P=0.9 • Right • Relationship between Ba and m for P=0.9

  15. Drawback • Computational DoS free ? • Lack of experiments • Abetter algorithm ?

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