Electromagnetic & Acoustic Side Channels
Study EM emanations, acoustic cryptanalysis, and Spectre/Meltdown.
Beyond Power: Other Physical Channels
Besides power, chips emit electromagnetic (EM) radiation and generate acoustic noise. Both channels carry data-dependent signals that can leak cryptographic secrets.
Electromagnetic Emanations
Switching transistors emit EM radiation. A small probe placed near an IC can pick up signals spatially localised to a single functional unit — more precise than a global power measurement.
All lessons in this course
- Timing Attacks: Extracting Keys from Execution Time
- Power Analysis: SPA & DPA
- Electromagnetic & Acoustic Side Channels
- Countermeasures: Masking, Blinding & Constant-Time Code