Proposal for Rotating 3D Text-based CAPTCHA Using Subjective Contour

DOI

Bibliographic Information

Other Title
  • 主観的輪郭を用いた回転3Dテキスト型CAPTCHAの提案

Description

In this study, we propose a CAPTCHA to improve the usability of the text-based method. This CAPTCHA shows only the side of the 3D characters rotate vertically or horizontally. Users need to input characters rotating in the specified direction to pass it. Humans can recognize the subjective contours of characters but machines cannot recognize them only seeing the shade. Our experiment result shows that the human success rate exceeded the average success rate of the existing method, and the usability is as high as the image-based CAPTCHA. We need to consider more obstruction to reduce attack accuracy against this CAPTCHA.

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Details 詳細情報について

  • CRID
    1390566775156334976
  • DOI
    10.14923/transcomj.2019wfp0007
  • ISSN
    18810209
  • Text Lang
    ja
  • Article Type
    journal article
  • Data Source
    • JaLC
    • KAKEN
  • Abstract License Flag
    Disallowed

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