摘要：Graphical passwords are vulnerable to shoulder surfing attacks as the images are easier to remember than the text. Thus, existing graphical password schemes incorporate an anti-shoulder surfing mechanism, to ensure the graphical password is secure from shoulder surfing attacks. Unfortunately, the literature review has shown that most of the graphical password schemes that have anti-shoulder surfing mechanisms are general device graphical password schemes, not mobile device graphical password schemes. Therefore, in this experiment, two general device graphical password anti-shoulder surfing mechanisms, which are the Triangle Scheme and the Intersection Scheme, are reconstructed on a mobile device to test whether or not the general device graphical password anti-shoulder surfing mechanism is suitable for re-use in mobile devices.
