期刊名称：Journal of Theoretical and Applied Information Technology
印刷版ISSN：1992-8645
电子版ISSN：1817-3195
出版年度：2014
卷号：62
期号：2
出版社：Journal of Theoretical and Applied
摘要：Authentication is possible in several ways namely textual, graphical, bio-metric, 3D password and third party authentication. In this paper, the authentication system is presented by introducing the multi-level authentication technique which generates the password in multiple levels to access the services. The details of proposed multilevel authentication techniques are presented along with data flows, algorithms. In today�s scenario, graphical password is the alternative in network security to replace text-based password in which users interact with images for authentication rather than input alphanumeric strings. In general, the image-based authentication can be classified into two categories, i.e, click-based graphical password and choice-based graphical password. However, each of them is having several limitations. In this paper, a multiple Click based graphical authentication system (MC-GAS) is proposed with the purpose of improving the image-based authentication in both security and usability by combining the above two techniques with alpha numeric password.
