Proceedings ArticleDOI
Algorithm for Secured Online Authentication Using CAPTCHA
Anjali Chandavale,Ashok M. Sapkal +1 more
- pp 292-297
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TLDR
The result shows that this algorithm provides secured social relevance to avail free Internet services and in turn improve usability of well-claimed CAPTCHA.Abstract:
CAPTCHA stands for Completely Automated Public Turing Tests to Tell Computers and Humans Apart. A CAPTCHA is a program that protects websites against bots –automated scripts by generating and grading tests that humans can pass but current computer programs cannot. For example, humans can read distorted text but current computer programs can't. The threats from bots is growing rapidly and also increasing in technical sophistication causing various types of attacks. These attacks are affecting social aspects of human beings. Human being or legitimate users are cheated by false requests disturbing their social life. This paper aims to provide secured authentification by verifying strength of CAPTCHA. The strength of CAPTCHA can be verified by solving it. The CAPTCHA solving has mainly three steps such as preprocessing, segmentation and character recognition. The input distorted image of CAPTCHA is passed through preprocessing module which removes noise and gives raw image which is then segmented. These segmented characters are recognized using pattern-matching technique achieving 88% accuracy. The result shows that this algorithm provides secured social relevance to avail free Internet services and in turn improve usability of well-claimed CAPTCHA.read more
Citations
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Journal ArticleDOI
A survey of CAPTCHA technologies to distinguish between human and computer
TL;DR: This review discusses the CAPTCHA mechanism from usability and security aspects, therefore attacking (anti-classification) and defending ( classification) technologies towards currentCAPTCHA are both reviewed.
Journal ArticleDOI
Methodology of wavelet analysis in research of dynamics of phishing attacks
Mehdi Dadkhah,Vyacheslav Lyashenko,Zhanna V. Deineko,Shahaboddin Shamshirband,Mohammad Davarpanah Jazi +4 more
TL;DR: Wavelet analysis of time series which represent phishes verified as valid and suspected phishes submitted is used to investigate recurrence of occurrence of phishing attacks that allows concentrating forces and means during the periods of activisation of such harmful influences.
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An Introduction to Journal Phishings and Their Detection Approach
TL;DR: An approach based on classification algorithms to identify these kind of journal phishing attacks which are not identifiable by techniques and methods which have been invented to confrontingphishing attacks are introduced.
CAPTCHA Celebrating its Quattuordecennial - A Complete Reference
TL;DR: This paper is a collection of 179 published works on CAPTCHA scheme, attacks and analysis, applications, usability issues and recaptcha are the heads under which the papers have been categorised.
Journal ArticleDOI
A hybrid approach for phishing web site detection
TL;DR: The presented approach considers the most used features and adds new features to identify these attacks and to eliminate unused features in the identifying process of these attacks, does not have the problems of previous techniques and can identify journal phishing too.
References
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Book
Neural Networks: A Comprehensive Foundation
TL;DR: Thorough, well-organized, and completely up to date, this book examines all the important aspects of this emerging technology, including the learning process, back-propagation learning, radial-basis function networks, self-organizing systems, modular networks, temporal processing and neurodynamics, and VLSI implementation of neural networks.
Journal ArticleDOI
Statistical pattern recognition: a review
TL;DR: The objective of this review paper is to summarize and compare some of the well-known methods used in various stages of a pattern recognition system and identify research topics and applications which are at the forefront of this exciting and challenging field.
Journal ArticleDOI
Statistical Pattern Recognition
TL;DR: In this paper, the primary goal of pattern recognition is supervised or unsupervised classification, and the various frameworks in which pattern recognition has been traditionally formulated, the statistical approach has been used.
Journal ArticleDOI
Artificial neural networks: a tutorial
TL;DR: The article discusses the motivations behind the development of ANNs and describes the basic biological neuron and the artificial computational model, and outlines network architectures and learning processes, and presents some of the most commonly used ANN models.
Journal ArticleDOI
Telling humans and computers apart automatically
TL;DR: In this paper, lazy cryptographers do AI and show how lazy they can be, and how they do it well, and why they do so poorly, and they are lazy.