AI Based Security Mechanism Using Captcha as Graphical Password

Authors

  • Surekha V Department of Computer Science and Engineering, Gnanamani College of Technology, Namakkal 637018, India
  • Murugaraja SK Department of Computer Science and Engineering, Gnanamani College of Technology, Namakkal 637018, India

Keywords:

CaRP, technologiDDes, AI, Captcha, Cryptosystem

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 technologiDDes, 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.

References

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Published

2025-11-10

How to Cite

[1]
V. Surekha and S. Murugaraja, “AI Based Security Mechanism Using Captcha as Graphical Password”, Int. J. Comp. Sci. Eng., vol. 3, no. 9, pp. 320–321, Nov. 2025.

Issue

Vol. 3 No. 9 (2015): IJCSE September Edition

Section

Review Article

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