A Study on Captcha Authentication Process

Abstract

Abstract-Cyber security is an important issue to share the data. Various user authentication methods are used for this purpose. It is a new family of graphical passwords scheme Known as Captcha as Graphical Password(CaRP). It deals with the security troubles like approximating attacks,relay attacks. A CaRP password can be detected by estimating online.Captcha is a graphical password for accessing an account to keep our data safe and secure. As Cyber Security is being raised these days,we are loosing our data .In this paper we discuss about how our data can be kept clean and secure by the third person.