... constructs that create security and to investigate usability concerns relating to the memory and typing issues concerning passphrases, this study was guided by three theories as follows: Shannon’s entropy theory was used to assess security, chunking theory to analyse memory issues and the keystroke level...

... on the user. Framework Computer security Memory Authentication Persuasion Computer users Authentication tasks should be as simple as possible. This includes reducing the process to the fewest actions and lowest complexity. Users can more easily form an accurate mental model of simpler...