NDLI: NAPTune: fine tuning graphical authentication

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NAPTune: fine tuning graphical authentication

Content Provider	ACM Digital Library
Author	Khot, Rohit Ashok Srinathan, Kannan Khot, Rutuja Ashok
Abstract	Graphical passwords are considered to be a secure and memorable alternative to text passwords. Users of such systems, authenticate themselves by identifying a subset of images from the set of displayed images. However, despite the impressive results of user studies on experimental graphical passwords schemes, their overall commercial adaptations have been relatively low. In this paper, we investigate the reasons behind the low commercial acceptance of graphical passwords and present recommendations to overcome the same. Based on these recommendations, we design a simple graphical password scheme, which we call as NAPTune. NAPTune is aimed to work as a cued recognition based graphical authentication scheme that allows users to choose both text as well as images as their password with the same underlying design and interaction. In doing so, we blend the strengths of Numbers, Alphabets and Pictures (NAP) together to effectively defeat prevalent forms of social hacking. We conducted a user study with 35 participants to evaluate the viability of our proposed design. Results of the study are encouraging which indicates that our proposed design is potentially secure and usable method of authentication.
Starting Page	47
Ending Page	56
Page Count	10
File Format	PDF
ISBN	9781450307291
DOI	10.1145/2407796.2407803
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2011-04-07
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Usable security User authentication Graphical passwords
Content Type	Text
Resource Type	Article

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