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Mutiple-directions flicking captcha for devices with touch screen

IP.com Disclosure Number: IPCOM000230994D
Publication Date: 2013-Sep-22

Publishing Venue

The IP.com Prior Art Database


Disclosed is a flicking captcha that enables users to prove themselves as real persons not robots with guided flicking directions and twirling directions on touch screen. Traditionally, users have to input the exactly same characters to the distorted or blurred text on a picture. However, for a device with touch screen, it is harder to input than touch. With our method, Users can choose the directions to flock the button or pill-like object below the authentication area by following the guideline besides. Four or more directions, even virtual exit are supplied in the software implementation, which are used to confuse the automatic robots.

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-directions flicking captcha for devices with touch screen

      directions flicking captcha for devices with touch screen Backgrounds:

A Captcha is a graphic or sound of a random word or number users must key in to prove they are human.The captcha in common sense mismatch the trend of touch screen. Inputting 4 words is harder than flicking for 4 times in a touch device or just deflecting the phone to make the pills or button out of a specific area.

Definition: CAPTCHA
Completely Automated Public Turing test to tell Computers and Humans Apart (CAPTCHAs)


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The traditional way to identify whether a logged-in user is a real person. In a device with keyboard, inputting several letters is easy so that the captcha can not be counted as one bothering factor. However, it is cumbersome to do the same thing in a touch screen device.


In a touch-screen device, flicking is easier than inputting letters. A routine procedure to verify that the one is signing in is a human being. In the given blurred picture, there are several letters which are necessary to be identified before one can


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sign in. During inputting letters, the keyboard occupies more than 1/3 of the total screen so that the span that our fingers need to cover is too large, which may lead to unmatched input. In the contrast, using a flicking captcha only need users to flick the blurred picture to several directions until the sign-in button come out. It is a series ofinertial actions that need less accuracy.

It is the flicking captcha that is introduced to take the place of current captcha. By guiding usersto flick the captcha to specific directions with blurred or mosaic words, such as left, top right corner and down, it can lead users to the sign-in-button that is hidden in a random position and avoid theergodic attacks.

Before a user reaches the exact position of the sign-in button, there are several fields which are good to embedded ads in. The embedded ads will help the flicking captcha to be more valuable to websites or applications for touch-screen devices.

1. It is more convenient to flick the captcha other than input captcha codes before logging in.

2. Captcha field is one area that users pay a lot of attention on.

Disclosed is a new generation captcha that uses the directives in blurred or mosaic pictures to guide users to flick to the sign-in button for applications or websites.


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Figure 1

In figure 1, a typical design of the sign-in page with the flicking captcha. The blurred and mosaic words are used to decide the one who is signing in is a human being and avoid attack from malicious software.


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Figure 2

When a user signs in, a random position of the sign-in button is given to the flicking captcha. The location of the sign-in button can be any in any position of the 4 branches in the figure above. The 4 branches, the number of which is not a constant value, are...