Advantages of User Authentication Using Unclear Images

— A user authentication system using "unclear images" as pass-images has been proposed, in which only legitimate users can understand their meaning by viewing the original images corresponding to these unclear pass-images, which are meaningless to unauthorized users. Hence, it is difficult for attackers to memorize them, even though they may have observed authentication trials by legitimate users. This paper reports another advantage of the user-authentication system using unclear images: their adaptation enables decoy images to be automatically generated, which are displayed along with the pass-images in the authentication window. Here, we explore various methods of automatically generating decoy images. image-based user-authentication; observing attackers; schema; unclear-image; decoy image (key words)

• Type: Conference
• Year: 2009
• Where: AINA
• Authors: Takumi Yamamoto, Atsushi Harada, Takeo Isarida, Masakatsu Nishigaki
• Keywords: AINA 2009, Computer Networks, Decoy Image, Legitimate Users, Unclear Images