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A Survey on Various CaRP Techniques


Captcha as a Graphical Password is a technique which is a combination of Captcha as well as a graphical password scheme. It enables us to address a plethora of security problems in an unprecedented manner such as brute-force attacks, relay attacks, shoulder surfing, phishing, etc. It is not only a novel means of avoiding the aforementioned, but also makes sure that the users select strong passwords that too in a dynamic manner. The following paper reviews different techniques currently being used under this paradigm, and also proposes a new method with the added functionality of machine learning

Key Words

Security, CAPTCHA, Machine Learning , Graphical Passwords, Captcha, CaRP.

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"A Survey on Various CaRP Techniques", International Journal of Emerging Technologies and Innovative Research (, ISSN:2349-5162, Vol.4, Issue 5, page no.93-96, May-2017, Available :

Publication Details

Published Paper ID: JETIR1705022
Registration ID: 170309
Published In: Volume 4 | Issue 5 | Year May-2017
DOI (Digital Object Identifier):
Page No: 93-96
ISSN Number: 2349-5162

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Impact factor: 5.87

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