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Single Trial Authentication with Mental Password Writing Read chapter Read first chapter

2015 | OriginalPaper | Chapter

Chimera CAPTCHA: A Proposal of CAPTCHA Using Strangeness in Merged Objects

Authors : Masahiro Fujita, Yuki Ikeya, Junya Kani, Masakatsu Nishigaki

Published in: Human Aspects of Information Security, Privacy, and Trust

Publisher: Springer International Publishing

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Abstract

In this paper, we propose “Chimera CAPTCHA” that requests users to select only a chimera object, merged from two 3D objects, in a question image, which consists of some 3D objects and the chimera object. The Chimera CAPTCHA is easy for humans to solve because chimera objects, whose appearance are different from ones judged by common sense, cause a feeling of strangeness. Usability survey suggests that the correct response rate is 90.5 % and the average response time is about 5.7 s. In addition, the CAPTCHA system is able to generate questions countlessly and easily by using 3DCG technologies. We also describe threats to its security.

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previous chapter Principles of Persuasion in Social Engineering and Their Use in Phishing
next chapter Effects of Password Permutation on Subjective Usability Across Platforms
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Metadata
Title
Chimera CAPTCHA: A Proposal of CAPTCHA Using Strangeness in Merged Objects
Authors
Masahiro Fujita
Yuki Ikeya
Junya Kani
Masakatsu Nishigaki
Copyright Year
2015
Book
Human Aspects of Information Security, Privacy, and Trust

Print ISBN: 978-3-319-20375-1

Electronic ISBN: 978-3-319-20376-8

Copyright Year: 2015

DOI
https://doi.org/10.1007/978-3-319-20376-8_5

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