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

Veröffentlichungsdatum dieses Volltextes: 31 Mrz 2016 11:50
Artikel
DOI zum Zitieren dieses Dokuments: 10.5283/epub.33570


Zusammenfassung

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.


Beteiligte Einrichtungen


Details

DokumentenartArtikel
Titel eines Journals oder einer ZeitschriftComputers & Security
Verlag:Elsevier
Band:60
Nummer des Zeitschriftenheftes oder des Kapitels:July
Seitenbereich:S. 95-116
Datum2016
InstitutionenWirtschaftswissenschaften > Institut für Wirtschaftsinformatik > Entpflichtete oder im Ruhestand befindliche Professoren > Professur für Wirtschaftsinformatik (Prof. Dr. Guido Schryen)
Stichwörter / KeywordsCAPTCHA, Usability, Facial features, Gender classiffcation, Age classification, Face recognition reverse Turing test
Dewey-Dezimal-Klassifikation000 Informatik, Informationswissenschaft, allgemeine Werke > 004 Informatik
StatusVeröffentlicht
BegutachtetJa, diese Version wurde begutachtet
An der Universität Regensburg entstandenJa
URN der UB Regensburgurn:nbn:de:bvb:355-epub-335707
Dokumenten-ID33570

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