Alphanumeric passwords are widely used in computer and network authentication to protect users' privacy. However, it is well known that long, textbased passwords are hard for...
Previous research has found graphical passwords to be more memorable than non-dictionary or “strong” alphanumeric passwords. Participants in a prior study expressed concerns t...
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 ...