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Comparison of Protocols
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Classroom Contents
EZHack - An Update on SDR and Toll Booth Reverse Engineering
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- 1 Intro
- 2 Presentation Goals
- 3 E-Z Pass System
- 4 Comparison of Protocols
- 5 Interoperability Updates
- 6 Original Challenge
- 7 First Steps - FCC ID
- 8 Specification Hunting
- 9 Specification Key Information
- 10 Specification - Communication Sequence
- 11 Specification - Frequencies
- 12 Modulation Types
- 13 On-Off Keying (OOK)
- 14 Manchester encoding
- 15 Tools
- 16 IQ Data - What is actually recorded?
- 17 GNU Radio - FFT
- 18 Why FFT?
- 19 Stuck at Almost Manchester
- 20 Clock Recovery MM
- 21 Reader Transponder Strength Complications
- 22 Packet Processing
- 23 Packet Dissection - Specification
- 24 IAG File Agreements
- 25 Dissector - Current State
- 26 Packet Dissector Demo
- 27 Amplitude Modulation - TX View
- 28 Original Readers
- 29 Reverse, Reverse!
- 30 Output Strength
- 31 Solution
- 32 Attack Vectors
- 33 E-ZPass Call (or, the Alternative Benefits of CYA)
- 34 Importance Revisited
- 35 What's Next?
- 36 Future of Toll Groups in the US
- 37 Lessons Learned
- 38 Questions?
