Abstract
This paper presents a method for freely drawing a graphical password. The new method achieves better security than conventional textual passwords and other graphical password schemes. With this method it is also easier for a user to remember the password. The basic idea of the new method is to use a number of the user's representative sample drawings to predict the user's future drawing prediction interval. The predicted values are obtained by conducting the least squares method to the polynomial regression/B-spline regression model. Based on the predicted values and deviation of the user's sample drawings, a prediction interval for the signature/picture is generated. This prediction interval is used as the password and, subsequently, if the signature/picture drawn by a user lies within the prediction interval, the user is authenticated into the application.
Original language | English |
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Pages (from-to) | 553-561 |
Number of pages | 9 |
Journal | Computer-Aided Design and Applications |
Volume | 6 |
Issue number | 4 |
DOIs | |
State | Published - 2009 |
Keywords
- Free drawing
- Graphical password
- Prediction
- Security
- Signature
ASJC Scopus subject areas
- Computational Mechanics
- Computer Graphics and Computer-Aided Design
- Computational Mathematics