AN IMAGE-BASED CAPTCHA SYSTEM USING CLICK
Farah Ruzanna Ridzuan, Hairulnizam Mahdin, Shahreen Kasim, Mohd Sanusi Azmi · Acta Electronica Malaysia · 2019
CAPTCHA stand for "Completely Automated Public Turing test to tell Computers and Humans Apart".It is a technique of testing where only human can solve it and computer-generated system (bots) could not get through it.In this paper, a new type CAPTCHA system is proposed.The proposed scheme named ClickShape, developed by using a technique based on image-based CAPTCHA.ClickShape will ask user to click on the shape displayed by the system.It is quite similar to image-based CAPTCHA where user have to choose any specific image, for example image of a signboard.As for this captcha image of a shape is easier to be recognize by human.This type of CAPTCHA had developed by using HTML, JavaScript, PHP and Cascading Style Sheets (CSS).