Mobile platforms have called for attention from HCI practitioners, and, ever since 2007,
touchscreens have completely changed mobile user interface and interaction design. Some …

With advancements of wireless and sensing technologies, recent studies have
demonstrated technical feasibility and effectiveness of using acoustic signals for sensing. In …

Device-free gesture tracking is an enabling HCI mechanism for small wearable devices
because fingers are too big to control the GUI elements on such small screens, and it is also …

We present fingerIO, a novel fine-grained finger tracking solution for around-device
interaction. FingerIO does not require instrumenting the finger with sensors and works even …

This paper demonstrates the feasibility of a side-channel attack to infer keystrokes on touch
screen leveraging an off-the-shelf smartphone. Although there exist some studies on …

Vibration measurement is a crucial task in industrial systems, where vibration characteristics
reflect the health and indicate anomalies of the objects. Previous approaches either work in …

This paper explores the limits of audio ranging on mobile devices in the context of a
keystroke snooping scenario. Acoustic keystroke snooping is challenging because it …

User authentication on smartphones must satisfy both security and convenience, an
inherently difficult balancing art. Apple's FaceID is arguably the latest of such efforts, at the …

The proliferation of wearable devices, eg, smartwatches and activity trackers, with
embedded sensors has already shown its great potential on monitoring and inferring human …

The emanations of electronic and mechanical devices have raised serious privacy concerns.
It proves possible for an attacker to recover the keystrokes by acoustic signal emanations …