iLock - Immediate and Automatic Locking of Mobile Devices against Data Theft
Association for Computing Machinery (ACM) via YouTube
Overview
Syllabus
Intro
Existing Authentication in Mobile Device
Automatic Locking
Leaving Detection by Active Acoustic Sensing
Challenges
Design Goals
Type-1 Attacker
Frequency Modulated Carrier Wave (FMCW)-based Distance Calculation
User Trace Extraction
When Should the Device be Locked?
One Person Leaving
Landscape Mode
Implementation
True Positive Rate VS. Orientation
Precision/Recall with a Type-III Attacker
Conclusion
Power Analysis
Taught by
ACM CCS