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Schryen, Guido ; Wagner, Gerit ; Schlegel, Alexander

Development of two novel face-recognition CAPTCHAs: a security and usability study

Schryen, Guido , Wagner, Gerit and Schlegel, Alexander (2016) Development of two novel face-recognition CAPTCHAs: a security and usability study. Computers & Security 60 (July), pp. 95-116.

Date of publication of this fulltext: 31 Mar 2016 11:50
Article
DOI to cite this document: 10.5283/epub.33570


Abstract

CAPTCHAs are challenge-response tests that aim at preventing unwanted machines, including bots, from accessing web services while providing easy access for humans. Recent advances in artificial-intelligence based attacks show that the level of security provided by many state-of-the-art text-based CAPTCHAs is declining. At the same time, techniques for distorting and obscuring the text, which are ...

CAPTCHAs are challenge-response tests that aim at preventing unwanted machines, including bots, from accessing web services while providing easy access for humans. Recent advances in artificial-intelligence based attacks show that the level of security provided by many state-of-the-art text-based CAPTCHAs is declining. At the same time, techniques for distorting and obscuring the text, which are used to maintain the level of security, make text-based CAPTCHAs diffcult to solve for humans, and thereby further degrade usability. The need for developing alternative types of CAPTCHAs which improve both, the current security and usability levels, has been emphasized by several researchers. With this study, we contribute to research through (1) the development of two new face recognition CAPTCHAs (Farett-Gender and Farett-Gender&Age), (2) the security analysis of both procedures, and (3) the provision of empirical evidence that one of the suggested CAPTCHAs (Farett-Gender) is similar to Google's reCAPTCHA and better than KCAPTCHA concerning effectiveness (error rates), superior to both regarding learnability and satisfaction but not effciency.


Involved Institutions


Details

Item typeArticle
Journal or Publication TitleComputers & Security
Publisher:Elsevier
Volume:60
Number of Issue or Book Chapter:July
Page Range:pp. 95-116
Date2016
InstitutionsBusiness, Economics and Information Systems > Institut für Wirtschaftsinformatik > Alumni or Retired Professors > Professur für Wirtschaftsinformatik (Prof. Dr. Guido Schryen)
KeywordsCAPTCHA, Usability, Facial features, Gender classiffcation, Age classification, Face recognition reverse Turing test
Dewey Decimal Classification000 Computer science, information & general works > 004 Computer science
StatusPublished
RefereedYes, this version has been refereed
Created at the University of RegensburgYes
URN of the UB Regensburgurn:nbn:de:bvb:355-epub-335707
Item ID33570

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