Covert channels using mobile device's magnetic field sensors

This paper presents a new covert channel using smartphone magnetic sensors. We show that modern smartphones are capable to detect the magnetic field changes induced by different computer components during I/O operations. In particular, we are able to create a covert channel between a laptop and a mo...

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Bibliographic Details
Main Authors: Matyunin, Nikolay, Szefer, Jakub, Biedermann, Sebastian, Katzenbeisser, Stefan
Format: Conference Proceeding
Language:English
Subjects:
Channels
Conferences
Design engineering
Encoding
Hardware
Laptop computers
Magnetic fields
Magnetic heads
Magnetic sensors
Magnetometers
Mobile communication systems
Portable computers
Sensors
Smartphones
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Description
Summary:This paper presents a new covert channel using smartphone magnetic sensors. We show that modern smartphones are capable to detect the magnetic field changes induced by different computer components during I/O operations. In particular, we are able to create a covert channel between a laptop and a mobile device without any additional equipment, firmware modifications or privileged access on either of the devices. We present two encoding schemes for the covert channel communication and evaluate their effectiveness.
ISSN:2153-697X
DOI:10.1109/ASPDAC.2016.7428065