This paper presents an integrated evaluation of the Persuasive Cued Click-Points graphical password scheme, including usability and security evaluations, and implementation considerations. An important usability goal for knowledge-based authentication systems is to support users in selecting passwords of higher security, in the sense of being from an expanded effective security space. We use pe...

Various graphical password schemes have been proposed as alternatives to text-based passwords. Researches have shown that text-based passwords are fraught with both usability and security problems that make them less than desirable solution. Psychology studies have revealed that the human brain is better at recognizing and recalling images than text. Graphical passwords are intended to capitali...

Usable security has unique usability challenges because the need for security often means that standard human-computer-interaction approaches cannot be directly applied. An important usability goal for authentication systems is to support users in selecting better passwords, thus increasing security by expanding the effective password space. In click-based graphical passwords, poorly chosen pas...

Authentication is the process to provide guaranteed information security and the graphical password authentication method is a convenient and easy process to provide authentication. The major problem of user registration, mostly text base password, is well known. If the login user be inclined to select a simple password which is frequently in his mind it becomes straightforward for attackers to...

Password authentication is failing as an authentication since it increases the user burden to remember the passwords. Graphical authentication is proposed as a alternative for textual passwords since it may be easy for users to remember.In this paper we propose a new image region selection based graphical password scheme. We are going to present a new technique for authentication which is based...

A graphical password system with a supportive sound signature and video clip to enhance the security level in authentication system and it is cued click point based system. In this system password consist of graphical images in which user can select one cued click-point per image and video clip for authentication. Systems shared very good performance in term of speed, accuracy and enhance the s...