In this paper, we propose to use the vibration of the chest in response to the heartbeat as a
biometric feature to authenticate the user on mobile devices. We use the built-in …

Wearable devices that capture users' rich information regarding their daily activities have
unmet authentication needs. Today's solutions, which primarily rely on indirect …

Continuous authentication is crucial for protecting user's privacy throughout their login
session. Existing studies employ wireless sensing technologies to provide device-free and …

Authentication of remote users is very important for security and privacy of multimedia
content that is often accessed online. Heartbeat signal has emerged as biometric modality …

Continuous authentication is of great importance to maintain the security level of a system
throughout the login session. The goal of this work is to investigate a trustworthy, continuous …

Smartphones have become the standard personal device to store private or sensitive
information. Widely used as every day gadget, however, they are susceptible to get lost or …

Voice-based authentication is prevalent on smart devices to verify the legitimacy of users,
but is vulnerable to replay attacks. In this paper, we propose to leverage the distinctive chest …

Biometric plays an important role in user authentication. However, the most widely used
biometrics, such as facial feature and fingerprint, are easy to capture or record, and thus …

We introduce hand movement, orientation, and grasp (HMOG), a set of behavioral features
to continuously authenticate smartphone users. HMOG features unobtrusively capture subtle …

Pervasive in nature and extensively used for a wide range of features, smartphone provides
functionality such as social networking, online shopping, mobile gaming, private/group …