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FATCHA: the CAPTCHA are you!

Published: 28 September 2015 Publication History

Abstract

In this paper, we propose an innovative type of CAPTCHA (Completely Automated Public Turing test to tell Computers and Humans Apart). These tests are used to allow a service to discriminate human users from (malicious) bots. With FATCHA, the user is simply asked to perform at random some trivial gesture, e.g., moving the head, which will be captured by the computer webcam and recognized by the server hosting the service. A second module in a possible composite service allows the user to authenticate by face recognition instead of using a password. In this way we significantly exploit the potentiality of multimodal interaction for both an advanced Human Interactive Proof (HIP) test and for robust/comfortable authentication.

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CHItaly '15: Proceedings of the 11th Biannual Conference of the Italian SIGCHI Chapter
September 2015
195 pages
ISBN:9781450336840
DOI:10.1145/2808435
Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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  • Sapienza: Sapienza University of Rome

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Association for Computing Machinery

New York, NY, United States

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Published: 28 September 2015

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Author Tags

  1. CAPTCHA
  2. Multimodal interaction
  3. bot
  4. brute force attack
  5. computer security
  6. denial of service
  7. human face detection

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CHItaly 2015

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CHItaly '15 Paper Acceptance Rate 31 of 59 submissions, 53%;
Overall Acceptance Rate 109 of 242 submissions, 45%

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