How to Make a Digital Whiteboard Secure - Using Java-Cards for Multimedia Applications

Authors:
Rüdiger Weis;Jürgen Vogel;Wolfgang Effelsberg;Werner Geyer;Stefan Lucks
Affiliations:
-;-;-;-;-
Venue:
IDMS '00 Proceedings of the 7th International Workshop on Interactive Distributed Multimedia Systems and Telecommunication Services
Year:
2000

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Abstract

In this paper we propose a light-weight, provable secure smart card integration for the OpenPGP secure message format. The basic idea is that the secret keys are stored on a smart card and never leave it. We have integrated this new security approach into an enhanced whiteboard, the digital lecture board (dlb). Existing whiteboards neglect security mechanisms almost completely, even though these mechanisms are extremely important to allow confidential private sessions and billing. The primary application field of our concept are small and closed groups, whereas the smart card serves to testify group membership. Our first implementation supports the JAVA i-Button which provides an additional hardware security.