Date of Publication :1st March 2017

Abstract: We face many security breaching issues for our desktop applications and online services. Many internet applications commonly use text based passwords for authentication. Text based passwords are prone to many attacks such as online guessing attacks , relay attacks ,shoulder surfing and are usually hard to remember. Graphical password proves to be a much better alternative to overcome these attacks. This paper introduces the use of Captcha as Graphical Password- CaRP to enhance the security at the time of login. CaRP is the combination of both graphical password and captcha technology. This system allows the user to select different visual login schemes. CaRP is one of the reasonable solutions that provides added security

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