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We can measure a difference
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Classroom Contents
How Your DRAM Becomes a Security Problem
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- 1 Intro
- 2 About this presentation
- 3 Take aways
- 4 From code to capacitor
- 5 Why translation
- 6 Address translation on x86-64
- 7 Virtual and physical addressing
- 8 Road block: Data Caches
- 9 Bypass cache road block
- 10 How does physical addresses map to memory
- 11 DRAM organization
- 12 First hint of trouble
- 13 The Row buffer
- 14 How reading from DRAM works
- 15 We can measure a difference
- 16 Summary
- 17 Remember this?
- 18 Reversing the mapping function - Approach
- 19 Imagine this code
- 20 Spying
- 21 Two related questions
- 22 How our demo really works
- 23 Attacks
- 24 Scenario
- 25 The solution
- 26 The gory details - bits
- 27 The gory details - Packets
- 28 Rowhammer
- 29 Finding rows
- 30 DDR4 Row hammer
- 31 Black Hat Sound Bytes
