The document discusses next generation CAPTCHAs that use simple mini-games instead of text-based challenges to differentiate humans from bots. It describes four types of game CAPTCHAs tested: Bird Shooting, Connecting Dots, Duck Hunt, and Drag-and-Drop. A usability study found the game CAPTCHAs took half the time to complete compared to other types and were easier for users to understand. The game CAPTCHAs also have security advantages over traditional text-based CAPTCHAs and don't require plugins to function across different browsers and devices.

1. Gamification of
Internet Security
by Next Generation
CAPTCHAs

2. What is CAPTCHA?
What does the acronym CAPTCHA stands
for?
Completely Automated Public Turing test to tell
Computers and Humans Apart

3. CAPTCHA
– Developed in the year 2000 at Carnegie Mellon
University by John Langford, Nicholas J. Hooper and
Luis Von Ahn.
– CAPTCHA is used to differentiate between the humans
and the computers.
– Also prevents system from the viruses or vulnerable
attacks
– A verification test found at the end of the sign-up page
form in Gmail or Yahoo account.
– And are used in websites that provide services like
surveys, polls, and registration forms.

4. CAPTCHA & AI
– CAPTCHAs are a type of Artificial Intelligence.
– That cannot be solved by a computer system
or by automated software.
– To understand CAPTCHA, you have to teach
computers about the human behaviour and
also to make the computer how the people
think.
– Algorithms are being made to make computers
understand the concept of captchas.

5. Why it is
needed?
– Preventing Comment Spam
– Protecting Website Registration
– Protecting Email Addresses from
Scrapers
– Online Polls
– Preventing Dictionary Attacks
– Search Engine Bots
– Worms & Spams

6. Types of CAPTCHAs
Text based
CAPTCHA
Image based
CAPTCHA
Audio based
CAPTCHA
Mathematical
CAPTCHA
Logic based
CAPTCHA
Ad Injected
CAPTCHA

7. SUPER CAPTCHA( SECURED USER
PERCEIVABLE EFFICACIOUS AND
RELIABLE)
System Architecture

8. Next Generation Game
CAPTCHAs
– The next generation CAPTCHAs are simple and light weighted mini games
– Used for differentiating human being from automated bots.
– Designed using HTML5 with JavaScript and transmitted to the client browser in
encrypted form.
– No additional plug required to implement them
Four different types of game-CAPTCHAs have experimented in this paper:
1. Bird Shooting
2. Connecting Dots
3. Duck Hunt
4. Drag-and-Drop

9. Types
1. Bird Shooting 2. Connecting Dots

10. Types
3. Duck Hunt 4. Drag-and-Drop

11. Security Analysis
A. Random Guessing Attack
B. Dictionary Attack
C. CAPTCHA in AI
D. Deniel-of-a-service attack in CAPTCHA

12. Usability Study
– 30 participants of different backgrounds were involved
– Study was made in terms of understanding, the level of complexity, time taken, and user
experience.
1. The first test is time taken to understand the mini game compared with text-based or
any other times of CAPTCHAs; the result shows its almost 20% easy to understand.
2. The second test is the level of complexity of game CAPTCHA, which is too simple to
complete the task.
3. Time taken to complete CAPTCHA is half of the time compared with any other types of
CAPTCHAs, because the user need not type anything to solve CAPTCHA, they can
simply click or drag-and-drop using a mouse in PC and tap or swipe in smartphones.
4. Since no plug-in are required to run the game-CAPTCHA, it can be supported almost
all king or browsers in either Mobile or PC.

13. Conclusion
Less time taking
More safe
Interesting
Easy to generate