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Review Paper on Improved Security Using Captcha as Graphical Password

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  • Priyanka J. Charde
  • M. S. Khandare

Abstract

Many security primitives are based on hard mathematical problems. Using hard AI problems for security is emerging as an exciting new paradigm, but has been underexplored. In this paper, we present a new security primitive based on hard AI problems, namely, a novel family of graphical password systems built on top of Captcha technology, which we call Captcha as graphical passwords (CaRP). CaRP is both a Captcha and a graphical password scheme. CaRP addresses a number of security problems altogether, such as online guessing attacks, relay attacks, and, if combined with dual-view technologies, shoulder-surfing attacks. Notably, a CaRP password can be found only probabilistically by automatic online guessing attacks even if the password is in the search set. CaRP also offers a novel approach to address the well-known image hotspot problem in popular graphical password systems, such as Pass Points, that often leads to weak password choices. CaRP is not a panacea, but it offers reasonable security and usability and appears to fit well with some practical applications for improving online security.

Suggested Citation

  • Priyanka J. Charde & M. S. Khandare, 2016. "Review Paper on Improved Security Using Captcha as Graphical Password," International Journal of Scientific Research in Science, Engineering and Technology, International Journal of Scientific Research in Science, Engineering and Technology, vol. 2(2), pages 514-519, December.
    • Handle: RePEc:ijs:ijsrse:v2:y2016:i2:id:hijsrset1622153
    Note: Article URL: https://ijsrset.com/IJSRSET1622153
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