Operating system

No Free Charge Theorem: A Covert Channel via USB Charging Cable on Mobile Devices

More and more people are regularly using mobile and batterypowered handsets, such as smartphones and tablets. At the same time, thanks to the technological innovation and to the high user demands, those devices are integrating extensive …

On the effectiveness of sensor-enhanced keystroke dynamics against statistical attacks

In recent years, simple password-based authentication systems have increasingly proven ineffective for many classes of real-world devices. As a result, many researchers have concentrated their efforts on the design of new biometric authentication …