Gamification of Internet Security by Next Generation CAPTCHAs
- 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