Abstract
We propose a new scheme of CAPTCHA that does not become a perceptual barrier for disable people. Our CAPTCHA system generates the tests in verbal style, so its use is not limited in specific perceptual channels. The tests are composed of several phrases and there are two kinds of tests: Human users try to (1) distinguish a phrase of strange meaning from others, and (2) identify the common topic among them.In our test we utilize open documents for material. Note that there is quite a large amount of documents on the net, so we can generate brand-new tests every time. One may say that adversaries can look for the phrases over the Internet and get several hints. Our system hides the sources by substituting the consonants of the phrases against such an attack.The mechanism is designed to imitate the phenomenon called “consonant gradation” of natural languages.
Chapter PDF
Similar content being viewed by others
References
von Ahn, L., Blum, M., Hopper, N.J., Langford, J.: Captcha: Using hard ai problems for security. In: Biham, E. (ed.) EUROCRYPT 2003. LNCS, vol. 2656, pp. 294–311. Springer, Heidelberg (2003)
Bigham, J.P., Cavender, A.C.: Evaluating existing audio captchas and an interface optimized for non-visual use. In: CHI 2009, pp. 1829–1838. ACM (2009)
Bursztein, E., Bethard, S., Fabry, C., Mitchell, J.C., Jurafsky, D.: How good are humans at solving captchas? a large scale evaluation. In: SP 2010, pp. 399–413. IEEE Computer Society (2010)
Shirali-Shahreza, S., Shirali-Shahreza, M.H.: Accessibility of captcha methods. In: AISec 2011, pp. 109–110. ACM (2011)
Yamaguchi, M.: A generating method of accessible verbal questions with online documents for substitution of captcha-like tests. Verbal Interface & Interaction 15(4), 337–352 (2013) (Japanese)
Holman, J., Lazar, J., Feng, J.H., D’Arcy, J.: Developing usable captchas for blind users. In: Assets 2007, pp. 245–246. ACM (2007)
Wimmer, H., Perner, J.: Beliefs about beliefs: Representation and constraining function of wrong beliefs in young children’s understanding of deception. Cognition 13(1), 103 (1983)
Dick, P.K.: Do androids dream of electric sheep? (1968)
Yamamoto, T., Tygar, J., Nishigaki, M.: Captcha using strangeness in machine translation. AINA 2010, 430–437 (2010)
Kamoshida, Y., Kikuchi, H.: Word salad captcha - application and evaluation of synthesized sentences. NBIS 12, 799–804 (2012)
Miller, G.A., Licklider, J.C.R.: The intelligibility of interrupted speech (1950)
Rawlinson, G.: The Significance of Letter Position in Word Recognition. University of Nottingham (1976)
Saberi, K., Perrott, D.: Cognitive restoration of reversed speech. Nature 398(6730), 760 (1999)
Kudo, T.: Mecab: Yet another part-of-speech and morphological analyzer, http://mecab.sourceforge.net/
Kudo, T., Matsumoto, Y.: Japanese dependency analysis using cascaded chunking. In: CoNLL 2002, pp. 63–69 (2002)
Weblio-Thesaurus, http://thesaurus.weblio.jp/
Aozora-Bunko, http://www.aozora.gr.jp/
GAPI. Net-0.5.0.1, http://gapidotnet.codeplex.com/
Bursztein, E., Martin, M., Mitchell, J.: Text-based captcha strengths and weaknesses. In: CCS 2011, pp. 125–138. ACM (2011)
Yamaguchi, M., Okamoto, T.: An evaluation of a captcha for the visually impaired using questions of context interpretation. National University Corporation Tsukuba University of Technology Techno Report 21 (2014) (Japanese)
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2014 Springer International Publishing Switzerland
About this paper
Cite this paper
Yamaguchi, M., Nakata, T., Okamoto, T., Kikuchi, H. (2014). An Accessible CAPTCHA System for People with Visual Disability – Generation of Human/Computer Distinguish Test with Documents on the Net. In: Stephanidis, C., Antona, M. (eds) Universal Access in Human-Computer Interaction. Design for All and Accessibility Practice. UAHCI 2014. Lecture Notes in Computer Science, vol 8516. Springer, Cham. https://doi.org/10.1007/978-3-319-07509-9_12
Download citation
DOI: https://doi.org/10.1007/978-3-319-07509-9_12
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-07508-2
Online ISBN: 978-3-319-07509-9
eBook Packages: Computer ScienceComputer Science (R0)