Click based graphical passwords that use background images suffer from hot-spot problem. Previous graphical password schemes based on recognition of images do not have a sufficient...
Kemal Bicakci, Nart Bedin Atalay, Mustafa Yuceel, ...
Usable security has unique usability challenges because the need for security often means that standard humancomputer-interaction approaches cannot be directly applied. An importa...
Sonia Chiasson, Alain Forget, Robert Biddle, Paul ...
Graphical password systems based on the recognition of photographs are candidates to alleviate current over-reliance on alphanumeric passwords and PINs. However, despite being bas...
How can we design a PDA that is at the same time secure and usable? In current implementations the two properties are mutually exclusive. Because normal users find password entry ...