Exploring effect of location number on map-based graphical password authentication

Weizhi Meng, Wang Hao Lee, Man Ho Allen Au, Zhe Liu

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

11 Citations (Scopus)


Graphical passwords (GPs) that authenticate users using images are considered as one potential alternative to overcome the issues of traditional textual passwords. Based on the idea of utilizing an extremely large image, map-based GPs like PassMap and GeoPass have been developed, where users can select their secrets (geographical points) on a world map. In particular, PassMap allows users to select two locations on a map, while GeoPass reduces the number of locations to only one. At first glance, selecting one location is more vulnerable to attacks, while increasing the location number may add burden on users. In the literature, there is no research exploring this issue. Motivated by this, our purpose in this work is to explore the effect of location number (the number of geographical points) and compare two schemes of PassMap and GeoPass in terms of users’ performance and feedback. In this work, we develop a generic and open platform for realizing map-based schemes, and conduct a user study with 60 participants. The study reveals that selecting two locations would not degrade the scheme performance. Our effort aims to complement exiting research studies in this area.
Original languageEnglish
Title of host publicationInformation Security and Privacy - 22nd Australasian Conference, ACISP 2017, Proceedings
PublisherSpringer Verlag
Number of pages13
ISBN (Print)9783319598697
Publication statusPublished - 1 Jan 2017
Event22nd Australasian Conference on Information Security and Privacy, ACISP 2017 - Auckland, New Zealand
Duration: 3 Jul 20175 Jul 2017

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume10343 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349


Conference22nd Australasian Conference on Information Security and Privacy, ACISP 2017
Country/TerritoryNew Zealand


  • Geographical location
  • Graphical passwords
  • Map-based password authentication
  • Security and usability
  • User authentication

ASJC Scopus subject areas

  • Theoretical Computer Science
  • General Computer Science


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