GRAPHICAL PASSWORDS AND METHODS FOR ENHANCED PASSWORD MEMORABILITY
Obasan Adebola, Abdulazeez & Sikiru,Patrick Owohunwa
Department of Computer Science, Kaduna Polytechnic
Departmentof Mathematics and Statistics
College of Science & Technology, Kaduna, Kaduna State, Nigeria.
Email:aolukay@yahoo.com,ysabdul94@yahoo.com,owohunwapatrick@yahoo.com
Abstract
Corporate organizations are depending on Internet-enabled Information Technology to reach their target users is a common practice today. This development has made huge users to employ the same technology to satisfy their diverse needs. Consequently, computer and information security has become a critical from service provider viewpoint to achieve protection, confidentiality, integrity, and ensure reliable access to information resource when using computer systems. To achieve this, text-based password authentication has been widely used without flawlessness because remembering secure password chosen from mixture of random alphanumeric and non-alphanumeric characters is an everyday problem for all users because of individual memory limitation. Graphical password which works just by clicking with a mouse or stylus could be used for user authentication. In this paper, we highlight needs for study of password, how memory influences passwords, different methods for improving memorability of passwords and memorability to achieve the main objective of the study. Which is to design a graphical authentication system that uses three autobiographical events background images in draw-grid environment to reduce memory loads of password and to ultimately achieve better memorability and security of passwords. We also highlight memorability and security features of the proposed scheme.
Key words: Graphical passwords, Password Space, Authentication, Security, Memory, Memorability
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