This course teaches learners how to conduct an optical side-channel attack called "Lamphone" to passively recover sound from desk lamp light bulb vibrations. The course covers analyzing a light bulb's response to sound, isolating the audio signal from the optical signal, and comparing Lamphone to related methods. The teaching method involves presenting research findings and comparisons. This course is intended for individuals interested in cybersecurity, privacy, and optical side-channel attacks.
Lamphone - Passive Sound Recovery from a Desk Lamp's Light Bulb Vibrations
Overview
Syllabus
Intro
A Light Bulb as a Microphone?
Related Eavesdropping Research
Limitations of Existing Methods
Lamphone's Threat Model
The Physical Phenomenon
OAT Algorithm
Comparison to Visual Microphone
The influence of the Distance on Lamphone's Performance
The influence of Sound Level and Distance on Lamphone's Performance
Takeaways
Taught by
USENIX
