Pass-Maps:A Usable Map-Based Scheme of Graphical Password
Date Issued
2008
Date
2008
Author(s)
FanChiang, Chun-Hsun
Abstract
In recent years, several graphical password schemes are proposed to overcome the drawbacks of text-based passwords. However, the classification of these schemes is not consistent in prior studies. Thus, we classify the existing schemes according to the events of input passwords, clicking and drawing. This thesis also provides a concept of combining the two types of graphical password schemes. We adopt maps as background pictures and conduct a user study to verify the superiority of using maps. We collected several images that are divided into two groups which contain maps and non-maps respectively. The results show that most passwords produced by maps are able to resist the present graphical dictionary attacks. Furthermore, the participants spent less time and had higher success rate to login when using maps. Based on the facts mentioned above, our scheme offers stronger security and better usability than those of the prior scheme indeed.
Subjects
graphical password
dictionary attack
security
usability
Type
thesis
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