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Practicality Of Accelerometer Side Channels On Smartphones
Posted Jan 31, 2013
Authored by Matt Blaze, Adam J. Aviv, Benjamin Sapp, Jonathan M. Smith

Modern smartphones are equipped with a plethora of sensors that enable a wide range of interactions, but some of these sensors can be employed as a side channel to surreptitiously learn about user input. In this paper, the authors show that the accelerometer sensor can also be employed as a high-bandwidth side channel; particularly, we demonstrate how to use the accelerometer sensor to learn user tap and gesture-based input as required to unlock smartphones using a PIN/password or Android's graphical password pattern.

tags | paper
SHA-256 | b36715f052367ed9e7831c08a743263d5a554a959e5c0fc9a1237b419a10bb1a

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