Pressure Sequence - A Novel Method of Protecting Smart Cards

Pieter H. Hartel, N.J. Henderson

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    If someone knocks on your door, the chances are that you can tell by the sound who it is. This simple idea is the basis of our pressure sequence method, which records the signal arising from a user tapping on a smart card. We have built a prototype, piezoelectric, screen printed pressure sensor on a smart card. We have also conducted an experiment with 34 volunteers to assess the effectiveness of the pressure sequence as an identification method. While the Equal-Error Rate (EER) of our current system is too high, we have identified a number of improvements that will lower the EER and make the identification more accurate. The sensor and associated circuitry are inexpensive, making it feasible to embed our technique in medium to high-end smart cards.
    Original languageUndefined
    Title of host publication4th Int. IFIP wg 8.8 Conf. Smart card research and advanced application (CARDIS)
    EditorsJ Domingo-Ferrer, D. Chan, A. Watson
    Place of PublicationBoston, Massachusetts
    PublisherKluwer Academic Publishers
    Number of pages16
    ISBN (Print)0-7923-7953-5
    Publication statusPublished - Sep 2000
    Event4th Smart Card Research and Advanced Applications Conference, CARDIS 2000 - Bristol, UK, Bristol, United Kingdom
    Duration: 20 Sep 200022 Sep 2000
    Conference number: 4

    Publication series

    PublisherKluwer Academic Publishers


    Conference4th Smart Card Research and Advanced Applications Conference, CARDIS 2000
    Abbreviated titleCARDIS 2000
    Country/TerritoryUnited Kingdom


    • SCS-Cybersecurity
    • METIS-119670
    • EWI-993
    • IR-19147

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