Tandem Smart Cards: Enforcing Trust for TLS-Based Network Services

This paper presents a new concept, called tandem, dedicated to smart cards that control TLS-based applications. The originality of this approach is to introduce a collaborative process between a smart card and its docking host. This technology enables the secure downloading of a huge amount of data, in untrustworthy computers. We present software paradigms and APIs that facilitate the practical deployment of such cards. We analyze experimental results, obtained with four commercial SIM cards and general purpose java cards.