We study the impact of selected parameters on the size of the password space for “Draw-A-Secret” (DAS) graphical passwords. We examine the role of and relationships between the number of composite strokes, grid dimensions, and password length in the …
In commonplace textual password schemes, users choose passwords that are easy to recall. Since memorable passwords typically exhibit patterns, they are exploitable by brute-force password crackers using attack dictionaries. This leads us to ask what …
In ubiquitous textual password schemes, users choose passwords that contain predictable characteristics that are roughly equated with what users find easy to recall. This motivates us to examine user choice in graphical passwords to determine whether …