User authentication remains a challenging issue, despite the existence of a large number of
proposed solutions, such as traditional text-based, graphical-based, biometrics-based, Web …

We study user interaction with touchscreens based on swipe gestures for personal
authentication. This approach has been analyzed only recently in the last few years in a …

Passwords are still used on a daily basis for all kind of applications. However, they are not
secure enough by themselves in many cases. This work enhances password scenarios …

To help users create stronger passwords, nearly every respectable web service adopts a
password strength meter (PSM) to provide real-time strength feedback upon user …

Secure and usable user authentication on mobile headsets is a challenging problem. The
miniature-sized touchpad on such devices becomes a hurdle to user interactions that impact …

This work enhances traditional authentication systems based on Personal Identification
Numbers (PIN) and One-Time Passwords (OTP) through the incorporation of biometric …

Data sharing among the intelligence communities is important to consolidate data analysis,
which will support decision-making process to preserve the security of the nation. Data …

Gestures drawn on touchscreens have been proposed as an authentication method to
secure access to smartphones. They provide good usability and a theoretically large …

Diverse applications are used on mobile devices. Because of the increasing dependence on
information systems, immense amounts of personal and sensitive data are stored on mobile …

Password recovery tools are needed to recover lost and forgotten passwords so as to regain
access to valuable information. As the process of password recovery can be extremely …