期刊名称：International Journal of Computer Science and Information Technologies
电子版ISSN：0975-9646
出版年度：2015
卷号：6
期号：6
页码：5473-5477
出版社：TechScience Publications
摘要：Most of the proposed graphical authenticationsystem has certain drawbacks for that reason textualpasswords are most preferable authentication system whereusers type passwords to authenticate themselves. Animportant usability goal of an authentication system is tosupport users for selecting the better password. User createsmemorable password which is easy to guess by an attackerand strong system assigned passwords are difficult tomemorize. So researchers of modern days gone throughdifferent alternative methods and conclude that graphicalpasswords are most preferable authentication system becausegraphical passwords are easy to remember but the problemthese authentication system is prone to shoulder surfingattacks. The proposed system combines the existing textualpasswords encryption and captcha password with differentalgorithms and added with click points to protect information,encouraging user to select more random click point which isdifficult to guess. Proposed system is not a panacea, but itoffers reasonable security and usability and appears to fit wellwith some practical applications for improving online securityand also provide more protection against online dictionaryattacks.
