Hsin-Yi Chiang

About

Hsin-Yi completed his Master’s in Computer Science in 2013.

His thesis was entitled “A graphical password scheme for mobile devices”.

Research Interests

Hsin-Yi explored improved authentication for mobile devices that use the familiar drawing pattern input method but result in improved passwords.

Thesis abstract

Typing text passwords using touchscreens can be challenging on mobile devices. We designed a new graphical password scheme called Touchscreen Multi-layered Drawing (TMD) for use with touchscreens. We conducted a preliminary study of existing graphical passwords on smart phones and tablets. Based on our findings, we designed a scheme that avoids the fuzzy boundaries problem without memorizing images. TMD is a user-drawn graphical password scheme addressing these issues. With the use of warp cells, TMD allows users to continuously draw their passwords across multiple layers in order to create more complex passwords than normally possible on a small screen. We compared the usability of TMD to Draw A Secret (DAS) on a tablet computer and a smart phone. Results showed that TMD passwords are more memorable and eliminated the fuzzy boundaries problem. Also, participants preferred using TMD than DAS to replace text passwords on mobile devices.

Publications

Conference Papers

• Hsin-Yi Chiang and Sonia Chiasson. [Paper] Improving user authentication on mobile devices: a touchscreen graphical password. In International Conference on MobileHCI, page 251–260. ACM, 2013.
  [Bibtex]

  @INPROCEEDINGS{chiang2013tmg-mobilehci,
  author = {Chiang, Hsin-Yi and Chiasson, Sonia},
  title = {[Paper] Improving user authentication on mobile devices: a touchscreen
  graphical password},
  booktitle = {International Conference on MobileHCI},
  year = {2013},
  pages = {251--260},
  organization = {ACM},
  note = {Conference Papers}
  }

Posters and Others

• Hsin-Yi Chiang and Sonia Chiasson. [Poster] Usability testing of graphical password schemes on mobile devices. ISSNet Annual Workshop, 2012.
  [Bibtex]

  @MISC{chiang2012mobile-issnet,
  author = {Hsin-Yi Chiang AND Sonia Chiasson},
  title = {[Poster] Usability testing of graphical password schemes on mobile
  devices},
  howpublished = {ISSNet Annual Workshop},
  year = {2012},
  note = {Posters and Others}
  }

Theses

• Hsin-Yi Chiang. [Thesis] A graphical password scheme for mobile devices. Master’s thesis, School of Computer Science, Carleton University, 2013.
  [Bibtex]

  @MASTERSTHESIS{chiang2013thesis-carleton,
  author = {Hsin-Yi Chiang},
  title = {[Thesis] A graphical password scheme for mobile devices},
  school = {School of Computer Science, Carleton University},
  year = {2013},
  note = {Theses}
  }