Awase-E: Image-Based Authentication for Mobile Phones Using User’s Favorite Images

  • Tetsuji Takada
  • Hideki Koike
Part of the Lecture Notes in Computer Science book series (LNCS, volume 2795)


There is a trade-off between security and usability in user authentication for mobile phones. Since such devices have a poor input interfaces, 4-digit number passwords are widely used at present. Therefore, a more secure and user friendly authentication is needed. This paper proposes a novel authentication method called “Awase-E”. The system uses image passwords. It, moreover, integrates image registration and notification interfaces. Image registration enables users to use their favorite image instead of a text password. Notification gives users a trigger to take action against a threat when it happens. Awase-E is implemented so that it has a higher usability even when it is used through a mobile phone.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2003

Authors and Affiliations

  • Tetsuji Takada
    • 1
  • Hideki Koike
    • 2
  1. 1.SONY Computer Science Laboratories, Muse Bldg.TokyoJapan
  2. 2.Graduate School of Information SystemsUniversity of Electro-CommunicationsTokyoJapan

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