Graphical password can be used as an alternative to text based (alphanumeric) password in
which users click on images to set their passwords. Text based password uses username …

Authentications, on web applications and service platforms such as the ones that enable
collaborative information sharing and resource management, are typically handled via text …

The rapid evolution of heterogeneous and ubiquitous technologies in recent years, along
with the growing demand for automation of services and content delivery, generated a …

In general users tend to choose memorable passwords that are easy for attackers to guess,
but strong system assigned passwords are hard for users to remember. In this paper focuses …

Digital information is an important corporate asset. Organizations typically devise policies
and guidelines to help employees protect the security of such information. Complying with …

Passphrases are regarded as more secure than passwords because they are longer than
passwords. Yet, users use predictable word patterns and common phrases to make …

Classical PIN based authentication schemes are susceptible to shoulder surfing attacks and
hence attacker may obtain secret credentials of legitimate user very easily. Some of the …

This research aims to study the existing password schemes and to design and develop a
new improved graphical password scheme. CaRP is Captcha as a graphical password. With …

Nowadays, information security is an important field and the topic of concern in this field is
user authentication. As we all use text password for the authentication from past years. In …

A graphical password guiding image serves as a visual prompt to improve password
memorability. However, passwords may be easily guessed if the guiding image contains …