CHI
2011
ACM
13 years 3 months ago
2011
ACM
While a large body of research on image-based authentication has focused on memorability, comparatively less attention has been paid to the new security challenges these schemes m...
SOUPS
2009
ACM
14 years 6 months ago
2009
ACM
This paper investigate security of graphical authentication tokens against educated guess attacks. Results of two user studies indicate that, if we use original photos as authenti...