22nd February 2011 Mufti Ali · JQuery · 2 Comments

QapTcha - Draggable jQuery Captcha

QapTcha is an easy-to-use and simple draggable captcha system which is build with jQuery and jQuery UI. It needs human action instead of to read a hard text and it is a very lightweight jQuery plugin.

qaptcha QapTcha Draggable jQuery Captcha

During the DOM building, QapTcha create a hidden input name=”iQapTcha” filled with a random password. Usually, a bot filled all the input into a form before sending the form. The aim of the drop is to empty this input when the drop is finished. With PHP, just check if the iQapTcha input is empty or not.

Requirements: jQuery, jQuery UI
Demo: http://www.myjqueryplugins.com/QapTcha
License: MIT License

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About the author

Mufti Ali

Mufti Ali

Mufti Ali is the editor and founder of Blogfreakz Open Source Resource.. Find me on twitter, digg, stumbleupon

2 Comments

  1. Thomas

    03.01.2011

    Too easy to hack. And it is not true, that it depends on user interaction, since it depends only on the presence of an empty input field.

    The javascript and the random password are only a potemkin village in front of this input field, since they are not needed at all.

    The design shows, that there is a total misunderstanding about passwords and captchas.

    Thomas

  2. Thomas

    03.01.2011

    OK, here is a line, which shows, how easy it is, to cheat the example:

    $ curl -F “firstname=John” -F “lastname=Dunn” -F “iQapTcha=” -F “submit=” -X POST http://www.myjqueryplugins.com/QapTcha/demo

    Thomas