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Author: search.filters.author.Wiangsripanawan, RungratSubject: search.filters.subject.Passwords

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    Item type:Publication,
    HapticPoints: The extended PassPoints graphical password
    (2019-01-01)
    Ratchasan, Trust
    ;
    Wiangsripanawan, Rungrat
    The most common issue of alphanumeric passwords is users normally create weak passwords for the reason that strong passwords are difficult to recognise and memorise. Graphical password authentication system is one of the approaches to address the issues of alphanumeric passwords memorability. Wiedenbeck et al. propose PassPoints in which a password is a sequence of any 5 to 8 user-selected click points on a system-assigned image. Nevertheless, PassPoints still faces the problem of predictable click points and shoulder surfing attack. In this paper, we propose an alternative graphical password system on smartphones called HapticPoints. By adding haptic feedback to PassPoints as additional decoy click points, the aforementioned problems can be prevented without needing users to do any additional memory task. We also conduct a user study to evaluate and compare the usability of HapticPoints and PassPoints.
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    A study of graphical password usability on smartphones in a week
    (2018-01-01)
    Ratchasan, Trust
    ;
    Wiangsripanawan, Rungrat
    Smartphone technology nowadays is very progressive. With a powerful camera, high-speed connectivity, touchscreen interface, millions of different applications development and also a biometrics authentication system such as fingerprint scanner, iris scanner and even face scanner but whenever biometrics authentication system accidentally failed a smartphone still uses text passwords, PINs or Android's Unlock Pattern as a secondary authentication system but users typically create week text passwords since strong text passwords are difficult to recall and memorise. PINs and Android's Unlock Pattern are easier to recall and memorise but also having the guessablity problem. Graphical password system is one of the approach which propose of solving the memorability problem. In this paper we implemented and optimised the selected existing graphical password systems to smartphones and conducted an experiment to study and compare a usability of graphical password to the current secondary authentication system on smartphones in a week.