期刊名称：International Journal of Computer Trends and Technology
电子版ISSN：2231-2803
出版年度：2019
卷号：67
期号：2
页码：17-36
DOI：10.14445/22312803/IJCTT-V67I2P104
出版社：Seventh Sense Research Group
摘要：Alphanumeric text and PINs continue to be the dominant authentication methods in spite of the numerous concerns by security researchers of their inability to properly address usability and security flaws and to effectively combine usability and security. These flaws have, however, contributed to the growing research interest in the development and use of graphical authentication systems as alternatives to text based systems. Graphical passwords or graphical authentication systems are password systems that use images rather than characters or numbers in user authentication. In spite of the growing acceptance of graphical passwords, empirical studies have shown that graphical authentication systems have also inherited some of the flaws of textbased passwords. These flaws include predictability, vulnerability to observational attacks and the inability of systems to efficiently combine security with usability. Hence, there is a continued quest to find a „system‟ that has both strong usability and strong security. This paper is a detailed review of the current state of research into graphical authentication systems. The paper considers in detail some of the mechanisms used in graphical authentication, along with the flaws and strengths of each. The paper also concludes with some suggested ways forward.
关键词：Graphical Authentication; graphical passwords; security; usability; user interface
