منابع مشابه
CAPTCHA Based on Human Cognitive Factor
A CAPTCHA (Completely Automated Public Turing test to tell Computers and Humans Apart) is an automatic security mechanism used to determine whether the user is a human or a malicious computer program. It is a program that generates and grades tests that are human solvable, but intends to be beyond the capabilities of current computer programs. CAPTCHA should be designed to be very easy for huma...
متن کاملFR-CAPTCHA: CAPTCHA Based on Recognizing Human Faces
A Completely Automated Public Turing test to tell Computers and Humans Apart (CAPTCHA) is designed to distinguish humans from machines. Most of the existing tests require reading distorted text embedded in a background image. However, many existing CAPTCHAs are either too difficult for humans due to excessive distortions or are trivial for automated algorithms to solve. These CAPTCHAs also suff...
متن کاملCAPTCHA-based Code Voting
Code voting provides an appropriate technology to address the secure platform problem of remote Internet voting, but it is not particularly user-friendly. In this paper, we propose the use of CAPTCHAan acronym standing for Completely Automated Public Turing tests to tell Computers and Humans Apart to improve the user-friendliness of code voting, discuss the security of CAPTCHAbased code voting,...
متن کاملTowards the Personalization of CAPTCHA Mechanisms Based on Individual Differences in Cognitive Processing
This paper studies the effect of individual differences on user performance related to text-recognition CAPTCHA challenges. In particular, a text-recognition CAPTCHA mechanism was deployed in a three-month user study to investigate the effect of individuals’ different cognitive processing abilities, targeting on speed of processing, controlled attention and working memory capacity toward effici...
متن کاملDesigning New CAPTCHA Models Based on the Cognitive Abilities of Artificial Agents
A CAPTCHA is a program that allows or denies access to services by generating and grading test that humans can pass but current computer programs cannot. Captchas are generally used to protect free web services from automated programs. Also, they can provide an idea of which fields in artificial intelligence are the most explored and which could be researched in the near future. Most of the tes...
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ژورنال
عنوان ژورنال: International Journal of Advanced Computer Science and Applications
سال: 2013
ISSN: 2156-5570,2158-107X
DOI: 10.14569/ijacsa.2013.041120