Overview
Syllabus
Intro
Agenda
Current Practice Compromising Reflections
Isolation secure ?
Attack Scenario: Remote and Through-wall
Screen Mechanism
Technique Challenges
Liquid Crystal Nonlinear Effects
Sensing Frequency Estimation
Preliminary Study (1/4)
Preliminary Study: PIN Theft
System Concept: WaveSpy
System Overview
The Wavelet Analysis on LCS Response
Screen Content Type Recognition
Sensitive Information Retrieval
General Security Information Inference
Evaluation Setup
On the Overall Accuracy
Impact of Display Resolution
Impact of Cover Material
Countermeasures
Discussion
Take-away
Taught by
IEEE Symposium on Security and Privacy