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 widespr ....etc

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Abstract

Now a days, hacking email accounts has become a serious threat because people store their private and confidential information and some times business data in their email account. With the access of user email account, an attacker can retrieve the victim's private and confidential information. the attacker can also use those accounts for wrong purposes

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Microsoft Phishing Filter:A New Approach to Building Trust in E-Commerce Content
The recent flurry of media coverage around identity theft and what is being called the new scam of phishing, in which online thieves attempt to use computers to gain illegal access to personal information, sometimes obscures the fact that these scams are not new but actually predate computers. In the pre-PC era (and sometimes even today), scam artists pretending to be bank employees or other similar seemingly trustworthy people would telep ....etc

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Abstract
Now a days, hacking email accounts has become a serious threat because people store their private and confidential information and some times business data in their email account. With the access of user email account, an attacker can retrieve the victim's private and confidential information. the attacker can also use those accounts for wrong purposes
With the widespread use of internet, anyone can gain the information to hack the different email account such as yahoo and hotmail passwords. Emails are now used as a legal ....etc

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Abstract.
We introduce captcha, an automated test that humans can pass, but current computer programs canâ„¢t pass: any program that has high success over a captcha can be used to solve an unsolved Arti?- cial Intelligence (AI) problem. We provide several novel constructions of captchas. Since captchas have many applications in practical secu- rity, our approach introduces a new class of hard problems that can be exploited for security purposes. Much like research in cryptography has had a positive impact on algorithms for factoring and ....etc

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Mobility Metric based LEACH-Mobile Protocol
G. Santhosh Kumar
#1
, Vinu Paul M V
*2
, K. Poulose Jacob
#3
#
Department of Computer Science, Cochin University of Science and Technology
Cochin “ 682 022, Kerala, INDIA
1,3
{san,kpj}@cusat.ac.in
*
Centre for AI and Robotics
Bangalore, INDIA
2
[email protected]
Abstract”Cluster based protocols like LEACH were found
best suited for routing in wireless sensor networks. In mobility
centric environments some improvements were suggested in the
basic scheme. LE ....etc

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