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      TAPCHA – An ‘Invisible’ CAPTCHA Scheme

      proceedings-article

      ,

      Proceedings of the 32nd International BCS Human Computer Interaction Conference (HCI)

      Human Computer Interaction Conference

      4 - 6 July 2018

      CAPTCHAs, Smart devices, Smartphones, TAPCHA, Usability, Security, Context effect

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            Abstract

            TAPCHA is a universal CAPTCHA scheme designed for touch-enabled smart devices such as smartphones, tablets and smartwatches. The main difference between TAPCHA and other CAPTCHA schemes is that TAPCHA retains its security by making the CAPTCHA test ‘invisible’ for the bot. It then utilises context effects to maintain the readability of the instruction for human users which eventually guarantees the usability of the scheme. Two reference designs, namely TAPCHA SHAPE & SHADE and TAPCHA MULTI are developed to demonstrate the use of this scheme.

            Content

            Author and article information

            Contributors
            Conference
            July 2018
            July 2018
            : 1-4
            Affiliations
            [0001]Bournemouth University

            Fern Barrow, Poole BH12 5BB
            Article
            10.14236/ewic/HCI2018.188
            e63bf16d-62b2-4dee-a459-13a0f2dd682e
            © Jiang et al. Published by BCS Learning and Development Ltd. Proceedings of British HCI 2018. Belfast, UK.

            This work is licensed under a Creative Commons Attribution 4.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

            Proceedings of the 32nd International BCS Human Computer Interaction Conference
            HCI
            32
            Belfast, UK
            4 - 6 July 2018
            Electronic Workshops in Computing (eWiC)
            Human Computer Interaction Conference
            Product
            Product Information: 1477-9358BCS Learning & Development
            Self URI (journal page): https://ewic.bcs.org/
            Categories
            Electronic Workshops in Computing

            References

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