Abstract
To enhance graphical passwords, we have developed a system of click-draw based graphical password scheme (named CD-GPS) that combined current graphical password techniques and evaluated its performance with human users. In real settings, we identify that the effect of tolerance is a key factor affecting the usability of our scheme, however, we have not explored its specific effect in our previous work. In this paper, we therefore conduct a user study to investigate the effect of tolerance on creating and confirming the click-draw based graphical passwords. In particular, we conduct two experiments with totally 60 participants in the user study. The results show that accurate memory and reproduction for the CD-GPS scheme can be significantly reduced when the tolerance is greatly decreased (e.g., 12 x 12 pixels). In the end, we further discuss how to select an appropriate tolerance for the scheme of CD-GPS in real deployment. Copyright © 2012 Springer-Verlag Berlin Heidelberg.
| Original language | English |
|---|---|
| Title of host publication | Information and communications security: 14th International Conference, ICICS 2012, Hong Kong, China, October 29-31, 2012, proceedings |
| Editors | Tat Wing CHIM, Tsz Hon YUEN |
| Place of Publication | Berlin |
| Publisher | Springer |
| Pages | 349-356 |
| ISBN (Electronic) | 9783642341298 |
| ISBN (Print) | 9783642341281 |
| DOIs | |
| Publication status | Published - 2012 |
Citation
Meng, Y., & Li, W. (2012). Evaluating the effect of tolerance on click-draw based graphical password scheme. In T. W. Chim & T. H. Yuen (Eds.), Information and communications security: 14th International Conference, ICICS 2012, Hong Kong, China, October 29-31, 2012, proceedings (pp. 349-356). Springer. https://doi.org/10.1007/978-3-642-34129-8_32Keywords
- Graphical password
- Authentication
- Usable security
- Click draw
- Tolerance evaluation
- Human factors