ES SOFTWARE

CAPTCHA-Completely Automated Public Turing test to tell Computers and Humans Apart-TECHNOLOGY-RESEARCH PAPER-SOFTWARE SALES SERVICE


type of challenge-response test used in computing to determine whether or not the user is human.

Re: CAPTCHAs-Understanding CAPTCHA Solving Services in an Economic Context.
free download

Abstract Reverse Turing tests, or CAPTCHAs, have become an ubiquitous defense used to protect open Web resources from being exploited at scale. An effective CAPTCHA resists existing mechanistic software solving, yet can be solved with high probability by a human

Captcha : Telling humans and computers apart automatically
free download

Page 1. 1 School of Computer Science Carnegie Mellon University CAPTCHA : Telling Humans and Computers Apart Automatically Luis von Ahn Manuel Blum Nicholas Hopper John Langford Page 2. 2 A program that can tell whether its user is a human or a computer CAPTCHA (2000)

A new graphical password scheme against spyware by using CAPTCHA .
free download

The security and usability problems inherent in text-based password schemes have resulted in the development of graphical password schemes as a possible alternative. However, most of the current graphical password schemes are vulnerable to spyware which is a

Persian/Arabic Baffletext CAPTCHA .
free download

Abstract: Nowadays, many daily human activities such as education, trade, talks, etc are done by using the Internet. In such things as registration on Internet web sites, hackers write programs to make automatic false registration that waste the resources of the web sites

Towards a universally usable CAPTCHA
free download

ABSTRACT CAPTCHAS are widely used on websites to differentiate between humans and computers. Audio CAPTCHAs provide an alternative interface that is accessible to blind users and users with low vision who are unable to see visual CAPTCHAs. We present a

Text-based CAPTCHA algorithms
free download

Abstract A CAPTCHA is a test that a computer can automatically administer to determine if a user is a human or a computer. Several aural and visual CAPTCHAs have already been developed, but a completely textfbased CAPTCHA is still elusive,[n this paper 1 describe the

Survey of different types of CAPTCHA
free download

Automated Public Turning Test to tell Computers and Humans Apart . CAPTCHA is basically used as a protection from these malicious programs like Bot. Now a days for web security we are using different type of captcha . In this paper we describe all type of captcha

A review of bot protection using CAPTCHA for web security
free download

Abstract: Today several daily activities such as communication, education, E-commerce, Entertainment and tasks are carried out by using the internet. To perform such web activities users have to register regarding the websites. In registering websites, some intruders write

A dual-use speech CAPTCHA : Aiding visually impaired web users while providing transcriptions of Audio Streams
free download

Abstract This work focuses on development of an alternative aural CAPTCHA technology based on a speech transcription task. The principal goals are (1) to provide a better quality of service for visually impaired web users who currently have few alternatives for accessing

Improved captcha method
free download

ABSTRACT A CAPTCHA is a program that can tell whether its user is a human or a computer. CAPTCHAs are used by many websites to differentiate between the bots (automated program) and the human. The main motive behind using the CAPTCHA is to

Strong captcha guidelines v1. 2
free download

Abstract An introduction to developing secure CAPTCHA (Completely Automated Public Turing test to tell Computers and Humans Apart) 1 systems. In addition to describing common weaknesses in CAPTCHA puzzles, focus is placed on the system as a whole,

Dynamic cognitive game captcha usability and detection of streaming-based farming
free download

Abstract CAPTCHAs are a widely deployed mechanism to distinguish a legitimate human user from a computerized program trying to abuse online services. Attackers, however, have devised a clever and an economical way to bypass the security provided by CAPTCHAs by

Cyber security using arabic captcha scheme.
free download

Abstract: Bots are programs that crawl through the web site and make auto registrations. CAPTCHAs, using Latin script, are widely used to prevent automated bots from abusing online services on the World Wide Web. However, many of the existing English based

An image-based CAPTCHA scheme exploiting human appearance characteristics.
free download

Abstract CAPTCHAs are automated tests that are there to avoid misuse of computing and information resources by bots. Typical text-based CAPTCHAs are proven to be vulnerable against malicious automated programs. In this paper, we present an image-based

understanding CAPTCHA : text and audio based CAPTCHA with its applications
free download

Abstract CAPTCHAs are short for Completely Automated Public Turing test to tell Computer and Humans Apart. The purpose of a CAPTCHA is to block form submissions from spam bots automated scripts that harvest email addresses from publicly available web

Move select: 2-layer CAPTCHA based on cognitive psychology for securing web services
free download

Abstract Nowadays, due to enormous growth of web users many services in the internet including Email, search engine, social networking are provided with free of charge. With the expansion of Web services, denial of service (DoS) attacks by malicious automated

Drag and drop image captcha
free download

Abstract The massive and automated access to Web resources through robots has made it essential for Web service providers to make some conclusion about whether a user is human or robot. A Human Interaction Proof (HIP) like Completely Automated Public Turing

CAPTCHA based web security: an overview
free download

Abstract Completely Automatic Public Turing test to tell Computers and Humans Apart ( CAPTCHA ) is a HIP (Human interactive Proof) system. CAPTCHAs are used to improve the security of Internet based applications in order to ensure that a web based application which

Random Handwritten CAPTCHA : Web Security with a Difference
free download

CAPTCHA . The web survival in this cut-throat competition is impossible without the mechanisms for blocking spam-boats. The spam-boats have now been made intelligent enough to break through machine printed CAPTCHAs. Handwritten CAPTCHA image can

Hybrid Collage CAPTCHA
free download

Abstract Authentication is indeed at the heart of any secure system. CAPTCHAs, a class of HIPs tests, are a program that tells whether user is a human or a computer. CAPTCHAs currently in use have been broken. Thus, there is a need to employ stronger CAPTCHAs to

Captcha and Its Techniques: A Review
free download

Abstract Captcha (Completely Automated public Turing test to tell Computers and Humans Apart) system is used to verify whether a user is human or computer program. Its also known as human Interactive Proof (HIP) and based upon Artificial Intelligence. Captcha is a

Leveraging Cognitive Factors in Securing WWW with CAPTCHA .
free download

Abstract Human Interactive Proofs systems using CAPTCHA help protect services on the World Wide Web (WWW) from widespread abuse by verifying that a human, not an automated program, is making a request. To authenticate a user as human, a test must be

Novel Method for Graphical Passwords using CAPTCHA
free download

Abstract-Cyber security is an important issue to tackle. Various user authentication methods are used for this purpose. It helps to avoid misuse or illegal use of highly sensitive data. Text and graphical passwords are mainly used for authentication purpose. But due to various

Two-Step CAPTCHA : Using a Simple Two Step Turing Test to Differentiate between Humans and Bots
free download

ABSTRACT Growth of Internet and its usage has made web services prone to malicious threats by automated scripts or bots. Completely Automated Public Turing Test to tell Computers and Humans Apart , commonly abbreviated as CAPTCHA is a technique used

An Efficient user Authentication using Captcha and graphical passwords-a Survey
free download

Abstract: CAPTCHA is an acronym for Completely Automated Public Turning Test to tell Computers and Humans Apart. Captcha is one of the widely used techniques for preventing malicious program from accessing the web resource automatically. Now a days for web

Automated CAPTCHA Solving: An Empirical Comparison of Selected Techniques.
free download

Abstract CAPTCHAs exploit the gap in the ability between a human and a machine to understand the semantics of specific multimedia content, with vast applications in computer security. In this paper we compare two techniques in automated CAPTCHA solving for text-

Image captcha based authentication using visual cryptography
free download

ABSTRACT Anti-phishing mechanisms in the websites currently focus on helping users to verify whether a web site is genuine or not. Phishing on the web pages is an attempt by an individual or a group to threats/hackers trying to retrieve an individuals personal confidential

Visual Cryptography for Authentication Using CAPTCHA
free download

Abstract Authenticity of the user is the major issue in todays internet applications such as core banking. Password has been the most used authentication mechanism which is subjected to offline and online dictionary attacks. Today hacking of the databases on the

On Random Field CAPTCHA Generation
free download

Abstract Herein, we propose generating CAPTCHAs through random field simulation and give a novel, effective and efficient algorithm to do so. Indeed, we demonstrate that sufficient information about word tests for easy human recognition is contained in the site marginal probabilities and

Image-based CAPTCHA with JACI
free download

Implementation). JACI is an image-based CAPTCHA technology that requires users to match like images with their partner image in order to pass the test. JACI is not dependant on keyboard interaction which aids some forms of accessibility and does not require

Improved security using captcha as graphical password
free download

Abstract: Consumers tend to choose unforgettable passwords that are easy for aggressors to guess, but strong system allotted passwords are hard for users to recall. Many protection primitives are based on difficult mathematical complications. Utilizing strong AI problems for

Breaking an Image based CAPTCHA
free download

A CAPTCHA is Completely Automated Public Turing test to tell Computers and Humans Apart. An image of distorted letters is dynamically generated. Since the letters are a part of an image and not text, it is difficult for a spam bot or other computer program to read. A

Designing CAPTCHA for Web Security Using Rotating and Spiliting Image against OCR Software
free download

Abstract: Nowadays internet is used for multiple activities by a huge number of people. These activities include communication, e-commerce, education, and entertainment. For many sites users needs to register to enroll website. However this websites are vulnerable.

Non-writer specific handwriting generation for the captcha application
free download

Abstract Automated recognition of unconstrained handwriting continues to be a challenging research task. Unavailability of large training datasets adds to these challenges and therefore there is a special interest in generating synthetic human-like handwritten

A hybrid method for image taxonomy: Using captcha for collaborative knowledge acquisition
free download

Abstract We present a new method for image taxonomy. Our formulation shows how the combination of automated metadata-based analysis and knowledge-acquisition tools can help build better image search applications. We build on top of existing metadata-based

The recognition of CAPTCHA
free download

Abstract CAPTCHA (Completely Automated Public Turing Test to Tell Computers and Humans Apart) is a completely automated program designed to distinguish whether the user is a computer or human. As the problems of Internet security are worsening, it is of great

Survey of Text CAPTCHA Techniques and Attacks
free download

Abstract CAPTCHA is a challenge-response test most often placed within web forms to determine whether the user is human. The purpose of CAPTCHA is to block automated scripts that post spam content everywhere they can. This paper presents a survey of Optical

Breaking microsofts CAPTCHA
free download

Abstract In this work we analyze the weaknesses of the CAPTCHA scheme used by Microsoft in their registration website. Furthermore, we propose some alternatives to mitigate the weaknesses found. In the first part of this project we built a CAPTCHA data set and used

A survey on CAPTCHA technique based on drag and drop mouse action
free download

Abstract CAPTCHA Completely Automated Public Turning Test to tell Computers and Humans Apart, it is a one type of test. CAPTCHA is standard internet security they protect online emails and services from being abused by malicious computer program or BOT.

Face-matching based CAPTCHA : generation and analysis
free download

Abstract-In the age of internet, with resources such as email services, cloud services being freely available, misuse of the same is bound to happen. Completely Automated Public Turing Test to Tell Computers and Humans Apart or CAPTCHA are small tests that help

Position Based CAPTCHA : Changing Place Restriction Minimize the Automatic Access
free download

Abstract At present day, most people use internet sites to get any type of information and resources and approximately all internet users have login accounts for internet sites to use their resources. For login accounts user must be registered on internet sites and these

Reviewing effectiveness of CAPTCHA
free download

Abstract: The massive use of the Internet and WWW by the government and commercial organizations for automation of work has resulted in extensive proliferation of online computing. To avoid online forms being filled by bots or malicious computers the form

Mouse intervention CAPTCHA .
free download

Abstract CAPTCHA (Completely Automatic Public Turing to tell Computers and Human Apart) has been developed to defend e-commerce systems from the attack of automatic scripts, spammers and bots; or to prevent worms on instant messaging (IM) . In this article,

3D CAPTCHA
free download

ABSTRACT This document describes a new type of CAPTCHA technology based on spatial perspective and human imagination. The basic idea is rotation of a special 3D model and finding the correct position of rotation. 3D model can be created from any 2D image. First,

Novel captcha schemes
free download

Abstract A CAPTCHA (Completely Automated Public Turing test to tell Computers and Humans Apart) is a program that can generate and grade tests that most humans are able to solve, yet current computer programs are not. They are used to protect various kinds of

Securing Web Services and Applications using Captcha Security
free download

Abstract There are many services in the internet including Email, search engine, social networking are provided with free of cost. To access these web services users have to register regarding the websites. During registration, some intruders or attackers write

A Survey of Captcha based Web and Application Security Methods and Techniques
free download

Abstract CAPTCHA program is used to differentiate human from computers and has many applications like online polls, free e-mail services, worm and spam protection, preventing dictionary attack, search engine bots. CAPTCHA ensures bots wont enter a website.

A technique for web security using mutual authentication and clicking-cropping based image captcha technology
free download

Abstract The major motto of my research is to develop a technique for web security using mutual authentication and clicking and cropping based image CAPTCHA technology. In our technique, we use two sections as registration and login. To create an account to use the

Assessing Threat Posed to Video CAPTCHA by OCR-Based Attacks
free download

2.1 Different parameters in video-understanding based CAPTCHA affecting the pass rates of humans and the break rates frequency-based attacks. Configurations define the parameters: n=# of related tags in the groundtruth; t= threshold for frequency pruning; s=

R.: Balancing usability and security in a video CAPTCHA
free download

Attack Tags Used frequency estimate for each threshold value t. For the control con-t Best Attack Tags# Pruned ˆ Sc (A) 1.0[music, video, live] 0 0.1377 0.01[dj, remix, vs] 37 0.0291 0.009 [girl, school, el] 44 0.0256 0.008 [animation, michael, star] 49 0.0237 0.007 [concert,

CAPTCHA Problems on AI Based For Protection from Automated Hacking Tool
free download

Abstract- CAPTCHA is program that protects website from web-bots by generating test that computer cannot pass only human can pass. It is completely automated public Turing test to tell the computer and human apart. CAPTCHA is simple puzzle and display the word in

Defeating a simple CAPTCHA using Optical Character Recognition
free download

Abstract I show how to defeat a simple CAPTCHA using optical character recognition, a process which involves several different steps. I begin with noise removal, which leaves an image with black characters on a white background. I locate the boundaries of each

Implementation of Advanced Captcha based Security System
free download

Abstract Web sites providing different web services and applications with resources which millions of users need to access. This might lead to unethical use and wastage of resources. To avoid this Captcha security test which is an image verification test, is being used. Image

Captcha as Graphical Passwords a New Security Primitive Based on Hard AI Problems
free download

Abstract: Many security primitives are based on hard mathematical problems. Using hard AI problems for security is emerging as an exciting new paradigm, but has been under explored a novel family of graphical password systems built on top of Captcha technology,

Novel Security Method using Captcha as Graphical Password
free download

ABSTRACT A captcha is acronym for completely automated public turing tests to tell computers and humans apart Captcha is used for security purpose but there are many attacks which can break captchas. This paper proposes carp ( captcha as graphical

CAPTCHA : A SECURITY MEASURE AGAINST SPAM ATTACKS
free download

Abstract A CAPTCHA is challenge response test used to ensure that the response is generated by humans. CAPTCHA test are administrator by machines to differentiate between humans and machine. Because of this reason CAPTCHAs are also known as the

Developing a CAPTCHA Utilizing Cognitive Ability of Human through PHP
free download

The increased usage of Internet and Network technology has changed the focus in accessing computer environments . Only ten years ago, it was hard to imagine that computers today would be engaged in automated web navigation and requests for contents

Review on Captcha : Graphical Password for Security
free download

Abstract--The utilization of passwords is a major point of vulnerability in pc security, as passwords are typically straightforward to guess by machine-driven programs running dictionary attacks. Several security primitives are supported AI mathematical issues. Using

CAPTCHA recognition and robustness measurement using hybrid approaches
free download

Abstract Completely Automatic Public Turing test to tell Computers and Humans Apart ( CAPTCHA ) is a HIP (Human interactive Proof) system. CAPTCHAs are used to improve the security of Internet based applications in order to ensure that a web based application which
BIG DATA
CLOUD COMPUTING
IOT-INTERNET OF THINGS
ROBOTICS
CONTACT US

NEW IEEE PROJECTS

IEEE PROJECT PAPERS FOR CSE
IEEE PROJECTS DOWNLOAD
IEEE PROJECTS FOR EEE
IEEE PROJECT PAPERS FOR ECE
IEEE PROJECTS FOR ECE 2016
IEEE PROJECTS FOR ECE 2017
IEEE PROJECTS 2017
IEEE MINI PROJECTS