1. Drag and Drop A Better Approach to CAPTCHA A.D.PATEL INSTITUTE OF TECHNOLOGY By: Arpan Desai &Pragnesh Patadia Presented At: IEEE Indicon 2009, DAIICT { arpanvdesai…

Slide 1Human and Social Computation Research at Politecnico di Milano Slide 2 Definition According to Von Ahn Combine humans and computers to solve large-scale problems that…

AN IMPROVED AUDIO Submitted By :Swapnil Singh 0816513057 I.T. - IIIrd year CONTENTS What are captchas? Problem with current audio captchas. Testing of current captchas. Categories…

1. CAPTCHA -By Bansari Rajani 2. Contents... •What is CAPTCHA? •Making a CAPTCHA •Type of CAPTCHA •Where to use CAPTCHA? •Guidelines…

CAPTCHAS CAPTCHA Shashwat Shriparv [email protected] InfinitySoft CAPTCHA CAPTCHA is an acronym for â Completely automated public Turing Test To Tell the Computers…

Slide 1CAPTCHA: Using Hard AI Problems for Security 12 Jun 2007 Ohad Barak (a.k.a. jo) Luis Von Ahn, EuroCrypt 2003 Slide 2 Nov 99, slashdot.com: “Which is the best graduate…

Slide 1 Slide 2 AN IMPROVED AUDIO Jenn Tam [email protected] Computer Science Dept. Carnegie Mellon University SOAPS 2008, Pittsburgh, PA Slide 3 1 WHAT ARE CAPTCHAS? CAPTCHAs…

Slide 1 Breaking an Animated CAPTCHA Scheme Vu Duc Nguyen, Yang-Wai Chow and Willy Susilo University of Wollongong Slide 2 About CAPTCHA Vu Duc Nguyen, Yang-Wai Chow and…

Slide 1 Computer Vision Group University of California Berkeley Recognizing Objects in Adversarial Clutter: Breaking a Visual CAPTCHA Greg Mori and Jitendra Malik Slide 2…

Slide 1 IS1500: Introduction to Web Development Collecting Data with Forms Martin Schedlbauer, Ph.D. [email protected] Slide 2 FORM CONCEPTS Collecting Data with Forms…