how we generate code for captcha in website desiging


about captcha what it is,what are the advantages ,how to generate code for captcha ....etc

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A CAPTCHA (a backronym for Completely Automated Public Turing test to tell Computers and Humans Apart) is a type of challenge-response test used in computing to determine whether or not the user is human.

The term was founded in 2003 by Luis von Ahn, Manuel Blum, Nicholas J. Hopper, and John Langford.The most common type of CAPTCHA was first invented in 1997 by Mark D. Lillibridge, Martin Abadi, Krishna Bharat, and Andrei Z. Broder. This form of CAPTCHA requires that the user type the letters of a distorted image, sometimes with the additi ....etc

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To get full information or details of captcha please have a look on the pages

http://seminarsprojects.net/Thread-captcha-security-for-phishing?pid=49604&mode=threaded

http://seminarsprojects.net/Thread-captchas?page=2

http://seminarsprojects.net/Thread-captchas?page=3

http://seminarsprojects.net/Thread-captcha-project-report-free-download

if you again feel trouble on captcha please reply in that page and ask specific fields in captcha ....etc

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I need seminar report on CAPTCHA , 3D CAPTCHA and all information regarding it .. ....etc

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Presented by:Amaldev M.
Undecidability Results in Turing Test

Abstract
The turing test is one of the most disputed topics in artificial intelligence, philosophy of mind, and cognitive science. This seminar covers the major undeeidability results and supporting facts that had been claimed or proved against the test.

Introduction

1.1 'Can machines think'
I Propose to consider the question, 'Can machines think?' Thi ....etc

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to get information about the topic 3D CAPTCHA full report ,ppt and related topic refer the page link bellow

http://seminarsprojects.net/Thread-captchas?page=2

http://seminarsprojects.net/Thread-captchas?page=3 ....etc

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Hi,
I am Anusha Sekar. I am in my final year of Computer Science Engineering.
I want to know if you have ppt presentation fro the topic- 3D CAPTCHA: A Next Generation of the CAPTCHA. Could you help me out with the presentation? If you already have the presentation, please mail me at [email protected].

Thank You ....etc

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CAPTCHA Security: A Low-Cost Attack on a Microsoft CAPTCHA
SEMINAR REPORT
Submitted by
NARAYANAN V
DEPARTMENT OF COMPUTER SCIENCE & ENGINEERING
COLLEGE OF ENGINEERING TRIVANDRUM
2010





ABSTRACT

CAPTCHA is now almost a standard security technology. The most widely used CAPTCHAs rely on the sophisticated distortion of text images rendering them unrecognizable to the state of the art of pattern recognition techniques, and these text-based schemes have found widespread applicati ....etc

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An Alternative To Captcha - Video Captcha
B.Tech Seminar report
by
Nawas Abdulla
Department of Computer Science And Engineering
Government Engineering College, Thrissur
December 2010

report:


Abstract
Video Captcha is a new technique for using content based video as a CAPTCHA
task. These CAPTCHAs are presently generated from YouTube videos, which con-
tains tags supplied by the person while uploading that video. These videos are graded
using the given video ....etc

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C.A.P.T.C.H.A
Completely Automated Public Turing Test to Tell Computers and Humans Apart

Abstract
A CAPTCHA (an acronym for completely automated public Turing test to tell computers and humans apart, trademarked by Carnegie Mellon University) or a MAPTCHA (Mathematical) is a type of challenge-response test used in computing to determine whether or not the user is human. The term was coined in 2000 by Luis von Ahn, Manuel Blum, Nicholas J. Hopper of Carnegie Mellon University, and John Langford of IBM. A common type of CAPTCHA requires t ....etc

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