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Design of innovative CAPTCHA for hindi language

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Abstract

Designing a CAPTCHA possessing the property of a sweet spot is always a challenge. Text-based CAPTCHAs are popular among websites. The history of text-based schemes shows that these schemes are broken with a very high success rate. Most of these broken schemes are designed using English language-based letters. It motivated the researchers to design non-English-based CAPTCHA schemes. The author has also successfully broken some Hindi language-based CAPTCHA schemes. After breaking the existing 20 typical CAPTCHA designs in the Hindi language, the authors have observed some serious limitations in a text-based scheme. In this article, the authors have used important guidelines that are proposed in the previous work by the authors. The authors implemented these guidelines to design a secure and usable CAPTCHA in the Hindi language. In this article, we have developed a new CAPTCHA based on the Hindi language and tested the proposed design from a security and usability point of view. The proposed novel CAPTCHA scheme first time uses a combination of printed and handwritten Hindi characters. The proposed scheme is 100% secure from computer attacks and also 90% usable.

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Authors and Affiliations

  1. Department of Computer Science and Applications, Panjab University Regional Centre, Muktsar, Punjab, India

    Mohinder Kumar & M. K. Jindal

  2. Department of Computational Sciences, Maharaja Ranjit Singh Punjab Technical University, Bathinda, Punjab, India

    Munish Kumar

Authors
  1. Mohinder Kumar
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  2. M. K. Jindal
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  3. Munish Kumar
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Correspondence to Munish Kumar.

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Kumar, M., Jindal, M.K. & Kumar, M. Design of innovative CAPTCHA for hindi language. Neural Comput & Applic 34, 4957–4992 (2022). https://doi.org/10.1007/s00521-021-06686-0

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