Smartcard firewalls revisited

  • Authors:
  • Henrich C. Pöhls;Joachim Posegga

  • Affiliations:
  • FB Informatik, Sicherheit in Verteilten Systemen (SVS), Universität Hamburg, Hamburg;FB Informatik, Sicherheit in Verteilten Systemen (SVS), Universität Hamburg, Hamburg

  • Venue:
  • CARDIS'06 Proceedings of the 7th IFIP WG 8.8/11.2 international conference on Smart Card Research and Advanced Applications
  • Year:
  • 2006

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Abstract

Smartcards are being used as secure endpoints in computer transactions. Recently, the connectivity of smartcards has increased and future smartcards will be able to communicate over the TCP/IP protocol. In this work, we explore options for using a smartcard as an active node in a communication network rather than as an endpoint. We envision in particular a proxy firewall running on a smartcard and combining the best of both worlds: the smartcard as a secure environment, and the proxy firewall for securing the network. Facilitating the various security options smartcards offer, we show how to design a secure network firewall on a smartcard. We illustrate the usefulness of such a device in several scenarios.